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<div class="usa-navbar">
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<div class="usa-logo flex-fill">
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<a href="/" title="National Institute of Standards and Technology" aria-label="Home">
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<img src="/libraries/nist-component-library/dist/img/logo/logo.svg" alt="National Institute of Standards and Technology" width="300px" height="80px" />
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</a>
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</div>
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<div class="usa-header__right grid-row flex-auto">
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<div class="grid-col-fill nist-header__search-group">
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<form class="usa-search usa-search--small"
|
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accept-charset="UTF-8"
|
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action="/search"
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id="search_form"
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method="get">
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<div role="search">
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<label class="usa-sr-only" for="search-form">Search NIST</label>
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<input class="usa-input" id="search-form" type="search" name="s" placeholder="Search NIST" required="" maxlength="128">
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<button class="usa-button" type="submit"><img src="/libraries/nist-component-library/dist/img/usa-icons-bg/search--white.svg" class="usa-search__submit-icon" alt="Search"></button>
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</div>
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</form>
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</div>
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<div class="grid-col-auto padding-left-1">
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<button class="usa-menu-btn">Menu</button>
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<nav aria-label="Primary navigation" class="usa-nav">
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<div class="usa-nav__inner">
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<button class="usa-nav__close">Close</button>
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<ul class="usa-nav__primary usa-accordion">
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<li class="usa-nav__primary-item">
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<a class="usa-nav__link" href="/publications">Publications</a>
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</li>
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<li class="usa-nav__primary-item">
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<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-2"><span>What We Do</span></button>
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<li class="usa-nav__submenu-item">
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<a href="/topics" class="usa-nav__link">All Topics</a>
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<a href="/advanced-communications" class="usa-nav__link">Advanced communications</a>
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<a href="/artificial-intelligence" class="usa-nav__link">Artificial intelligence</a>
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<a href="/bioscience" class="usa-nav__link">Bioscience</a>
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<a href="/buildings-construction" class="usa-nav__link">Buildings and construction</a>
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<a href="/chemistry" class="usa-nav__link">Chemistry</a>
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<a href="/cybersecurity" class="usa-nav__link">Cybersecurity</a>
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<a href="/electronics" class="usa-nav__link">Electronics</a>
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<a href="/energy" class="usa-nav__link">Energy</a>
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<a href="/environment" class="usa-nav__link">Environment</a>
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<a href="/fire" class="usa-nav__link">Fire</a>
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<li class="usa-nav__submenu-item">
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<a href="/forensic-science" class="usa-nav__link">Forensic science</a>
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<a href="/health" class="usa-nav__link">Health</a>
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<a href="/information-technology" class="usa-nav__link">Information technology</a>
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<li class="usa-nav__submenu-item">
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<a href="/infrastructure" class="usa-nav__link">Infrastructure</a>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="/manufacturing" class="usa-nav__link">Manufacturing</a>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="/materials" class="usa-nav__link">Materials</a>
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<li class="usa-nav__submenu-item">
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<a href="/mathematics-statistics" class="usa-nav__link">Mathematics and statistics</a>
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</li>
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<li class="usa-nav__submenu-item">
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<a href="/metrology" class="usa-nav__link">Metrology</a>
|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/nanotechnology" class="usa-nav__link">Nanotechnology</a>
|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/neutron-research" class="usa-nav__link">Neutron research</a>
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/performance-excellence" class="usa-nav__link">Performance excellence</a>
|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/physics" class="usa-nav__link">Physics</a>
|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/public-safety" class="usa-nav__link">Public safety</a>
|
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</li>
|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/quantum-information-science" class="usa-nav__link">Quantum information science</a>
|
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|
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</li>
|
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<li class="usa-nav__submenu-item">
|
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<a href="/resilience" class="usa-nav__link">Resilience</a>
|
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|
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</li>
|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/standards" class="usa-nav__link">Standards</a>
|
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|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/transportation" class="usa-nav__link">Transportation</a>
|
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</li>
|
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|
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</ul>
|
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|
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</div>
|
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|
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</div>
|
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</div>
|
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</li>
|
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<li class="usa-nav__primary-item">
|
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|
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<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-3"><span>Labs & Major Programs</span></button>
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<div id="primary_menu-3" class="usa-nav__submenu usa-megamenu">
|
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<div class="grid-row">
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<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
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|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/adlp" class="usa-nav__link">Assoc Director of Laboratory Programs</a>
|
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|
|
</li>
|
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|
|
<li class="usa-nav__submenu-item">
|
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|
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<a href="/laboratories" class="usa-nav__link">Laboratories</a>
|
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|
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<ul class="usa-nav__submenu-list">
|
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|
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<li>
|
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|
|
<a href="/ctl" class="usa-nav__link">Communications Technology Laboratory</a>
|
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|
|
</li>
|
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|
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<li>
|
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|
|
<a href="/el" class="usa-nav__link">Engineering Laboratory</a>
|
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|
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</li>
|
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|
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<li>
|
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|
|
<a href="/itl" class="usa-nav__link">Information Technology Laboratory</a>
|
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|
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</li>
|
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|
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<li>
|
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|
|
<a href="/mml" class="usa-nav__link">Material Measurement Laboratory</a>
|
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|
|
</li>
|
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|
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<li>
|
|||
|
|
<a href="/pml" class="usa-nav__link">Physical Measurement Laboratory</a>
|
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|
|
</li>
|
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|
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</ul>
|
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|
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</li>
|
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|
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
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<li class="usa-nav__submenu-item">
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<a href="/user-facilities" class="usa-nav__link">User Facilities</a>
|
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<ul class="usa-nav__submenu-list">
|
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|
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<li>
|
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|
|
<a href="/ncnr" class="usa-nav__link">NIST Center for Neutron Research</a>
|
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|
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</li>
|
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|
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<li>
|
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|
|
<a href="/cnst" class="usa-nav__link">CNST NanoFab</a>
|
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|
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</li>
|
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|
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</ul>
|
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|
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</li>
|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/labs-major-programs/research-test-beds" class="usa-nav__link">Research Test Beds</a>
|
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|
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</li>
|
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|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/laboratories/projects-programs" class="usa-nav__link">Research Projects</a>
|
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</li>
|
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|
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/laboratories/tools-instruments" class="usa-nav__link">Tools & Instruments</a>
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</li>
|
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
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<li class="usa-nav__submenu-item">
|
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<a href="/major-programs" class="usa-nav__link">Major Programs</a>
|
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<ul class="usa-nav__submenu-list">
|
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|
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<li>
|
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|
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<a href="/baldrige" class="usa-nav__link">Baldrige Performance Excellence Program</a>
|
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|
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</li>
|
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|
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<li>
|
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|
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<a href="/chips" class="usa-nav__link">CHIPS for America Initiative</a>
|
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|
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</li>
|
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|
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<li>
|
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|
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<a href="/mep" class="usa-nav__link">Manufacturing Extension Partnership (MEP)</a>
|
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|
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</li>
|
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|
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<li>
|
|||
|
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<a href="/oam" class="usa-nav__link">Office of Advanced Manufacturing</a>
|
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|
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</li>
|
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|
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<li>
|
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|
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<a href="/spo" class="usa-nav__link">Special Programs Office</a>
|
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|
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</li>
|
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|
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<li>
|
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|
|
<a href="/tpo" class="usa-nav__link">Technology Partnerships Office</a>
|
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|
|
</li>
|
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|
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</ul>
|
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|
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</li>
|
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|
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</ul>
|
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|
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</div>
|
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|
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</div>
|
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</div>
|
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</li>
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<li class="usa-nav__primary-item">
|
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<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-4"><span>Services & Resources</span></button>
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<div id="primary_menu-4" class="usa-nav__submenu usa-megamenu">
|
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<div class="grid-row">
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<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<li class="usa-nav__submenu-item">
|
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<a href="/content/standards-measurements" class="usa-nav__link">Standards and Measurements</a>
|
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<ul class="usa-nav__submenu-list">
|
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<li>
|
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|
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<a href="/calibrations" class="usa-nav__link">Calibration Services</a>
|
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|
|
</li>
|
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|
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<li>
|
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|
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<a href="/nvlap" class="usa-nav__link">Laboratory Accreditation (NVLAP)</a>
|
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|
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</li>
|
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|
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<li>
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|
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<a href="/nist-quality-system" class="usa-nav__link">Quality System</a>
|
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|
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</li>
|
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|
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<li>
|
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|
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<a href="/srm" class="usa-nav__link">Standard Reference Materials (SRMs)</a>
|
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|
|
</li>
|
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|
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<li>
|
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|
|
<a href="/sri" class="usa-nav__link">Standard Reference Instruments (SRIs)</a>
|
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|
|
</li>
|
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|
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<li>
|
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|
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<a href="/standardsgov" class="usa-nav__link">Standards.gov</a>
|
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|
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</li>
|
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<li>
|
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|
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<a href="/pml/time-and-frequency-division/time-services" class="usa-nav__link">Time Services</a>
|
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</li>
|
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|
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<li>
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|
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<a href="/pml/owm" class="usa-nav__link">Office of Weights and Measures</a>
|
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</li>
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</ul>
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</li>
|
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<li class="usa-nav__submenu-item">
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<a href="/services-resources/software" class="usa-nav__link">Software</a>
|
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</li>
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<li class="usa-nav__submenu-item">
|
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<a href="/data" class="usa-nav__link">Data</a>
|
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|
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<ul class="usa-nav__submenu-list">
|
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|
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<li>
|
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|
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<a href="https://webbook.nist.gov/chemistry/" class="usa-nav__link">Chemistry WebBook</a>
|
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|
|
</li>
|
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|
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<li>
|
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|
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<a href="https://nvd.nist.gov/" class="usa-nav__link">National Vulnerability Database</a>
|
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|
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</li>
|
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<li>
|
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|
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<a href="/pml/productsservices/physical-reference-data" class="usa-nav__link">Physical Reference Data</a>
|
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|
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</li>
|
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<li>
|
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|
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<a href="/srd" class="usa-nav__link">Standard Reference Data (SRD)</a>
|
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|
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</li>
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</ul>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="https://shop.nist.gov/" class="usa-nav__link">Storefront</a>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="/tpo" class="usa-nav__link">License & Patents</a>
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</li>
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</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<li class="usa-nav__submenu-item">
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<a href="https://csrc.nist.gov/" class="usa-nav__link">Computer Security Resource Center (CSRC)</a>
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</li>
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<li class="usa-nav__submenu-item">
|
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|
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<a href="/nist-research-library" class="usa-nav__link">NIST Research Library</a>
|
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</li>
|
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</ul>
|
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</div>
|
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</div>
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</div>
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</li>
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<li class="usa-nav__primary-item">
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<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-5"><span>News & Events</span></button>
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<div id="primary_menu-5" class="usa-nav__submenu usa-megamenu">
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<div class="grid-row">
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<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
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<li class="usa-nav__submenu-item">
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<a href="/news-events/news" class="usa-nav__link">News</a>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="/news-events/events" class="usa-nav__link">Events</a>
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</li>
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<li class="usa-nav__submenu-item">
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<a href="/blogs" class="usa-nav__link">Blogs</a>
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</li>
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<h1 class="nist-page__title">Electrolyte Layer Gas Triggers Cathode Potential Instability in CO2 Electrolyzers</h1>
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<div class="nist-field__item"><time datetime="2021-02-01T12:00:00Z">February 1, 2021</time>
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<div class="nist-field__item">Kevin Krause, Jason K. Lee, ChungHyuk Lee, Hisan W. Shafaque, Pascal J. Kim, Kieran F. Fahy, Pranay Shrestha, <span class="nist-author">Jacob LaManna</span>, <span class="nist-author">Elias Baltic</span>, <span class="nist-author">David Jacobson</span>, <span class="nist-author">Daniel Hussey</span>, Aimy Bazylak</div>
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<h3>Abstract</h3>
|
|||
|
|
Electrolytic carbon dioxide (CO2) reduction is becoming increasingly promising for managing anthropogenic CO2 emissions; however, issues related to unstable performance and ineffective gas management are still not fully accounted for in the field. Here, we identify two instability modes that are directly linked to the electrolyte layer gas saturation for an anion exchange membrane flow cell circulating KHCO3. The cathode potential exhibits a semi-stable mode with low electrolyte layer gas saturations and a detrimental secondary mode with high gas saturations and a highly noisy, non-stationary potential. We illustrate that the gas saturation has a profound, direct impact on the mode of instability with a direct correlation between the coefficient of variation in cathode potential and the electrolyte layer gas saturation measured with real-time neutron radiography. This correlation is indicative of reaction site gas blockage that results in performance instability and reduced energy efficiency.
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|||
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<div class="nist-field__item">Journal of Power Sources</div>
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<div class="nist-field__item"><a href="https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933236" target="_blank">Local Download</a></div>
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<h3 class="nist-field__label">Keywords</h3>
|
|||
|
|
<div class="nist-field__item">Gas management, CO2 reduction, cathode potential instability, gas bubbles, liquid electrolyte, neutron radiography</div>
|
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<a href="/topic-terms/sustainability" hreflang="en">Sustainability</a>, <a href="/topic-terms/neutron-research" hreflang="en">Neutron research</a>, <a href="/topic-terms/climate-measurements" hreflang="en">Climate Measurements</a> and <a href="/topic-terms/alternative-energy" hreflang="en">Alternative energy</a></div>
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>Citation</h2>
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<div class="js-view-dom-id-72eba52519f4fad0ff14bf4e5f7c19ca6b203d426eaa73d9515ca55d7f43c4fe">
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<article class="bibcite-reference">
|
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<div class="bibcite-citation">
|
|||
|
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Krause, K.
|
|||
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, Lee, J.
|
|||
|
|
, Lee, C.
|
|||
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, Shafaque, H.
|
|||
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, Kim, P.
|
|||
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, Fahy, K.
|
|||
|
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, Shrestha, P.
|
|||
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|
, LaManna, J.
|
|||
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, Baltic, E.
|
|||
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, Jacobson, D.
|
|||
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, Hussey, D.
|
|||
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and Bazylak, A.
|
|||
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|
|||
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|
(2021),
|
|||
|
|
Electrolyte Layer Gas Triggers Cathode Potential Instability in CO2 Electrolyzers, Journal of Power Sources, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933236
|
|||
|
|
(Accessed March 4, 2025)
|
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<li><a href="https://scholar.google.com/scholar?btnG=Search%2BScholar&as_q=%22Electrolyte%2BLayer%2BGas%2BTriggers%2BCathode%2BPotential%2BInstability%2Bin%2BCO2%2BElectrolyzers%22&as_occt=any&as_epq=&as_oq=&as_eq=&as_publication=&as_ylo=&as_yhi=&as_sdtAAP=1&as_sdtp=1">Google Scholar</a></li>
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If you have any questions about this publication or are having problems accessing it, please contact <a href="mailto:reflib@nist.gov" class="usa-link">reflib@nist.gov</a>.
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