ElectroCat (Electrocatalysis Consortium)
Piotr Zelenay
- 02 Jun 2020
About: The article was published on 02 Jun 2020. and is currently open access.
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Citations
Achievements, challenges and perspectives on cathode catalysts in proton exchange membrane fuel cells for transportation
Xiao Xia Wang,Mark T. Swihart,Gang Wu +2 more
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TL;DR: In this paper, the authors highlight breakthroughs, challenges and future directions for both platinum group metal (PGM) and PGM-free ORR cathode catalysts, and highlight the important role of carbon supports in enhancing overall performance.
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Chemical vapour deposition of Fe-N-C oxygen reduction catalysts with full utilization of dense Fe-N4 sites.
Li Jiao,Jingkun Li,Lynne Larochelle Richard,Qiang Sun,Thomas Stracensky,Ershuai Liu,Moulay Tahar Sougrati,Zipeng Zhao,Fan Yang,Sichen Zhong,Hui Xu,Sanjeev Mukerjee,Yu Huang,David A. Cullen,Jaehyung Park,Magali Ferrandon,Deborah J. Myers,Frédéric Jaouen,Qingying Jia +18 more
TL;DR: Characterization by multiple techniques shows that all Fe–N4 sites formed via this approach are gas-phase and electrochemically accessible and have an active site density of 1.92 × 1020 sites per gram with 100% site utilization.
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High loading of single atomic iron sites in Fe–NC oxygen reduction catalysts for proton exchange membrane fuel cells
Asad Ullah Mehmood,Meng Gong,Frédéric Jaouen,Aaron Roy,Andrea Zitolo,Anastassiya Khan,Moulay Tahar Sougrati,Mathias J.M. Primbs,A. Martinez Bonastre,Dash Fongalland,Goran Dražić,Peter Strasser,Anthony Kucernak +12 more
TL;DR: In this article , a carbon-nitrogen matrix using a sacrificial metal (Zn) in the initial synthesis step and then exchanging iron into this preformed matrix was used to achieve 7 wt% iron coordinated solely as single-atom Fe-N4 sites.
Electrocatalysis in Alkaline Media and Alkaline Membrane-Based Energy Technologies.
Yao Yang,Cheyenne R. Peltier,Rui Zeng,Roberto Schimmenti,Qihao Li,Xin Huang,Zhifei Wang Yan,Georgia Potsi,Ryan Selhorst,X. Lu,Weixuan Xu,M. Tader,Alexander V. Soudackov,Hanguang Zhang,Mihail R. Krumov,Ellen A. Murray,Pengtao Xu,Jeremy L. Hitt,Lin Xu,Hsin-Yu Ko,Brian G. Ernst,Colin Bundschu,Aileen Luo,D. Markovich,Meixue Hu,Cheng He,Hongsen Wang,Jiye Fang,Robert A. DiStasio,Lena F. Kourkoutis,Andrej Singer,Kevin J. T. Noonan,Li Xiao,Lina Zhang,Bryan S. Pivovar,Piotr Zelenay,Enrique Herrero,Juan M. Feliu,Jin Suntivich,Emmanuel P. Giannelis,Sharon Hammes-Schiffer,T. Arias,Manos Mavrikakis,Thomas E. Mallouk,Joel D. Brock,David A. Muller,Francis J. DiSalvo,Geoffrey W. Coates,Héctor D. Abruña +48 more
TL;DR: In this paper , a comprehensive review of the fundamentals of electrocatalysis in alkaline media and applications in alkyaline-based energy technologies, particularly alkaline fuel cells and water electrolyzers, is presented.
328
Low-PGM and PGM-Free Catalysts for Proton Exchange Membrane Fuel Cells: Stability Challenges and Material Solutions.
TL;DR: Recent progress in understanding the degradation of low-PGM and PGM-free catalysts in fuel cell MEAs and materials-based solutions to address these issues are reviewed and the key factors that degrade the MEA performance are highlighted.
263
References
Atomically dispersed manganese catalysts for oxygen reduction in proton-exchange membrane fuel cells
Jiazhan Li,Jiazhan Li,Mengjie Chen,David A. Cullen,Sooyeon Hwang,Maoyu Wang,Boyang Li,Kexi Liu,Stavros Karakalos,Marcos Lucero,Hanguang Zhang,Chao Lei,Hui Xu,George E. Sterbinsky,Zhenxing Feng,Dong Su,Karren L. More,Guofeng Wang,Zhen-Bo Wang,Gang Wu +19 more
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TL;DR: In this article, Wu et al. reported an efficient oxygen reduction reaction (ORR) catalyst that consists of atomically dispersed nitrogen-coordinated single Mn sites on partially graphitic carbon (Mn-N-C).
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Highly active atomically dispersed CoN 4 fuel cell cathode catalysts derived from surfactant-assisted MOFs: carbon-shell confinement strategy
Yanghua He,Sooyeon Hwang,David A. Cullen,M. Aman Uddin,Lisa Langhorst,Boyang Li,Stavros Karakalos,A. Jeremy Kropf,Evan C. Wegener,Joshua Sokolowski,Mengjie Chen,Deborah J. Myers,Dong Su,Karren L. More,Guofeng Wang,Shawn Litster,Gang Wu +16 more
TL;DR: In this article, a new type of atomically dispersed Co doped carbon catalyst with a core-shell structure has been developed via a surfactant-assisted metal-organic framework approach.
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PGM-Free Cathode Catalysts for PEM Fuel Cells: A Mini-Review on Stability Challenges
TL;DR: Of several possible degradation mechanisms, demetalation and carbon oxidation are found to be the most likely reasons for M-N-C catalysts/cathodes degradation.
506
Thermally Driven Structure and Performance Evolution of Atomically Dispersed FeN4 Sites for Oxygen Reduction
Jiazhan Li,Jiazhan Li,Hanguang Zhang,Widitha Samarakoon,Weitao Shan,David A. Cullen,Stavros Karakalos,Mengjie Chen,Daming Gu,Karren L. More,Guofeng Wang,Zhenxing Feng,Zhen-Bo Wang,Gang Wu +13 more
TL;DR: This approach is able to deconvolute Fe-N bond formation from complex carbonization and nitrogen doping, which correlates Fe-n bond properties with activity and stability of FeN 4 sites as a function of thermal activation temperatures.
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Metal-organic framework-derived nitrogen-doped highly disordered carbon for electrochemical ammonia synthesis using N2 and H2O in alkaline electrolytes
Shreya Mukherjee,David A. Cullen,Stavros Karakalos,Kexi Liu,Hao Zhang,Shuai Zhao,Hui Xu,Karren L. More,Guofeng Wang,Gang Wu +9 more
TL;DR: In this paper, a metal-organic framework-derived nitrogen-doped nanoporous carbon was used as an electrocatalyst for the nitrogen reduction reaction (NRR) by using renewable electricity.
440