Proton exchange membrane fuel cells with chromium nitridenanocrystals as electrocatalysts

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Polymer electrolyte membrane fuel cells (PEMFCs) are energy conversion devices that produce electricity from a supply of fuel, such as hydrogen. One of the major challenges in achieving efficient energy conversion is the development of cost-effective materials that can act as electrocatalysts for PEMFCs. In this letter, we demonstrate that, instead of conventional noble metals, such as platinum, chromium nitride nanocrystals of fcc structure exhibit attractive catalytic activity for PEMFCs. Device testing indicates good stability of nitride nanocrystals in low temperature fuel cell operational environment.

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Zhong, Hexiang; Chen, Xiaobo; Zhang, Huamin; Wang, Meiri & Mao,Samuel S. July 1, 2007.

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Description

Polymer electrolyte membrane fuel cells (PEMFCs) are energy conversion devices that produce electricity from a supply of fuel, such as hydrogen. One of the major challenges in achieving efficient energy conversion is the development of cost-effective materials that can act as electrocatalysts for PEMFCs. In this letter, we demonstrate that, instead of conventional noble metals, such as platinum, chromium nitride nanocrystals of fcc structure exhibit attractive catalytic activity for PEMFCs. Device testing indicates good stability of nitride nanocrystals in low temperature fuel cell operational environment.

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  • Journal Name: Applied Physics; Journal Volume: 91; Related Information: Journal Publication Date: 2007

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  • Report No.: LBNL--63516
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 918502
  • Archival Resource Key: ark:/67531/metadc891076

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  • July 1, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Sept. 30, 2016, 12:38 p.m.

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Zhong, Hexiang; Chen, Xiaobo; Zhang, Huamin; Wang, Meiri & Mao,Samuel S. Proton exchange membrane fuel cells with chromium nitridenanocrystals as electrocatalysts, article, July 1, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc891076/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.