Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks

Finding inexpensive alternatives to platinum group metals (PGMs) is essential for reducing the cost of proton exchange membrane fuel cells (PEMFCs). Numerous materials have been investigated as potential replacements of Pt, of which the transition metal and nitrogen-doped carbon composites (TM/Nx/C)...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Heather M. Barkholtz [verfasserIn] Lina Chong [verfasserIn] Zachary B. Kaiser [verfasserIn] Tao Xu [verfasserIn] Di-Jia Liu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	non-PGM catalyst proton exchange membrane fuel cell (PEMFC) oxygen reduction reaction (ORR) zeolitic imidazolate framework (ZIF)

Übergeordnetes Werk:	In: Catalysts - MDPI AG, 2012, 5(2015), 2, Seite 955-965
Übergeordnetes Werk:	volume:5 ; year:2015 ; number:2 ; pages:955-965

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/catal5020955

Katalog-ID:	DOAJ054509068

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source	In Catalysts 5(2015), 2, Seite 955-965 volume:5 year:2015 number:2 pages:955-965
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topic_facet	non-PGM catalyst proton exchange membrane fuel cell (PEMFC) oxygen reduction reaction (ORR) zeolitic imidazolate framework (ZIF) Chemical technology Chemistry
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callnumber-first	T - Technology
author	Heather M. Barkholtz
spellingShingle	Heather M. Barkholtz misc TP1-1185 misc QD1-999 misc non-PGM catalyst misc proton exchange membrane fuel cell (PEMFC) misc oxygen reduction reaction (ORR) misc zeolitic imidazolate framework (ZIF) misc Chemical technology misc Chemistry Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks
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topic_title	TP1-1185 QD1-999 Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks non-PGM catalyst proton exchange membrane fuel cell (PEMFC) oxygen reduction reaction (ORR) zeolitic imidazolate framework (ZIF)
topic	misc TP1-1185 misc QD1-999 misc non-PGM catalyst misc proton exchange membrane fuel cell (PEMFC) misc oxygen reduction reaction (ORR) misc zeolitic imidazolate framework (ZIF) misc Chemical technology misc Chemistry
topic_unstemmed	misc TP1-1185 misc QD1-999 misc non-PGM catalyst misc proton exchange membrane fuel cell (PEMFC) misc oxygen reduction reaction (ORR) misc zeolitic imidazolate framework (ZIF) misc Chemical technology misc Chemistry
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title	Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks
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title_full	Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks
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author_browse	Heather M. Barkholtz Lina Chong Zachary B. Kaiser Tao Xu Di-Jia Liu
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title_sort	highly active non-pgm catalysts prepared from metal organic frameworks
callnumber	TP1-1185
title_auth	Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks
abstract	Finding inexpensive alternatives to platinum group metals (PGMs) is essential for reducing the cost of proton exchange membrane fuel cells (PEMFCs). Numerous materials have been investigated as potential replacements of Pt, of which the transition metal and nitrogen-doped carbon composites (TM/Nx/C) prepared from iron doped zeolitic imidazolate frameworks (ZIFs) are among the most active ones in catalyzing the oxygen reduction reaction based on recent studies. In this report, we demonstrate that the catalytic activity of ZIF-based TM/Nx/C composites can be substantially improved through optimization of synthesis and post-treatment processing conditions. Ultimately, oxygen reduction reaction (ORR) electrocatalytic activity must be demonstrated in membrane-electrode assemblies (MEAs) of fuel cells. The process of preparing MEAs using ZIF-based non-PGM electrocatalysts involves many additional factors which may influence the overall catalytic activity at the fuel cell level. Evaluation of parameters such as catalyst loading and perfluorosulfonic acid ionomer to catalyst ratio were optimized. Our overall efforts to optimize both the catalyst and MEA construction process have yielded impressive ORR activity when tested in a fuel cell system.
abstractGer	Finding inexpensive alternatives to platinum group metals (PGMs) is essential for reducing the cost of proton exchange membrane fuel cells (PEMFCs). Numerous materials have been investigated as potential replacements of Pt, of which the transition metal and nitrogen-doped carbon composites (TM/Nx/C) prepared from iron doped zeolitic imidazolate frameworks (ZIFs) are among the most active ones in catalyzing the oxygen reduction reaction based on recent studies. In this report, we demonstrate that the catalytic activity of ZIF-based TM/Nx/C composites can be substantially improved through optimization of synthesis and post-treatment processing conditions. Ultimately, oxygen reduction reaction (ORR) electrocatalytic activity must be demonstrated in membrane-electrode assemblies (MEAs) of fuel cells. The process of preparing MEAs using ZIF-based non-PGM electrocatalysts involves many additional factors which may influence the overall catalytic activity at the fuel cell level. Evaluation of parameters such as catalyst loading and perfluorosulfonic acid ionomer to catalyst ratio were optimized. Our overall efforts to optimize both the catalyst and MEA construction process have yielded impressive ORR activity when tested in a fuel cell system.
abstract_unstemmed	Finding inexpensive alternatives to platinum group metals (PGMs) is essential for reducing the cost of proton exchange membrane fuel cells (PEMFCs). Numerous materials have been investigated as potential replacements of Pt, of which the transition metal and nitrogen-doped carbon composites (TM/Nx/C) prepared from iron doped zeolitic imidazolate frameworks (ZIFs) are among the most active ones in catalyzing the oxygen reduction reaction based on recent studies. In this report, we demonstrate that the catalytic activity of ZIF-based TM/Nx/C composites can be substantially improved through optimization of synthesis and post-treatment processing conditions. Ultimately, oxygen reduction reaction (ORR) electrocatalytic activity must be demonstrated in membrane-electrode assemblies (MEAs) of fuel cells. The process of preparing MEAs using ZIF-based non-PGM electrocatalysts involves many additional factors which may influence the overall catalytic activity at the fuel cell level. Evaluation of parameters such as catalyst loading and perfluorosulfonic acid ionomer to catalyst ratio were optimized. Our overall efforts to optimize both the catalyst and MEA construction process have yielded impressive ORR activity when tested in a fuel cell system.
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title_short	Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks
url	https://doi.org/10.3390/catal5020955 https://doaj.org/article/2141578d9c5e4b4d8ec7d07edc90a4af http://www.mdpi.com/2073-4344/5/2/955 https://doaj.org/toc/2073-4344
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up_date	2024-07-03T23:27:12.955Z
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Highly Active Non-PGM Catalysts Prepared from Metal Organic Frameworks

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