Recent Advances in Electrocatalysts for Oxygen Reduction Reaction
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TLDR
This comprehensive Review focuses on the low- and non-platinum electrocatalysts including advanced platinum alloys, core-shell structures, palladium-based catalysts, metal oxides and chalcogenides, carbon-based non-noble metal catalysts and metal-free catalysts.Abstract:
The recent advances in electrocatalysis for oxygen reduction reaction (ORR) for proton exchange membrane fuel cells (PEMFCs) are thoroughly reviewed. This comprehensive Review focuses on the low- and non-platinum electrocatalysts including advanced platinum alloys, core–shell structures, palladium-based catalysts, metal oxides and chalcogenides, carbon-based non-noble metal catalysts, and metal-free catalysts. The recent development of ORR electrocatalysts with novel structures and compositions is highlighted. The understandings of the correlation between the activity and the shape, size, composition, and synthesis method are summarized. For the carbon-based materials, their performance and stability in fuel cells and comparisons with those of platinum are documented. The research directions as well as perspectives on the further development of more active and less expensive electrocatalysts are provided.read more
Citations
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Journal ArticleDOI
Understanding Catalytic Activity Trends in the Oxygen Reduction Reaction.
TL;DR: This work shows that the performance of the commonly studied materials is limited by unfavorable scaling relationships (for binding energies of reaction intermediates), and presents a number of alternative strategies that may lead to the design and discovery of more promising materials for ORR.
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Multifunctional metal–organic framework catalysts: synergistic catalysis and tandem reactions
TL;DR: In this review, the applications of MOFs with multiple active sites in synergistic organic catalysis, photocatalysis and tandem reactions are discussed and proposed mechanisms are presented in detail.
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Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels.
TL;DR: Various cocatalysts, such as the biomimetic, metal-based,Metal-free, and multifunctional ones, and their selectivity for CO2 photoreduction are summarized and discussed, along with the recent advances in this area.
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Emerging Two-Dimensional Nanomaterials for Electrocatalysis
Huanyu Jin,Chunxian Guo,Xin Liu,Jinlong Liu,Anthony Vasileff,Yan Jiao,Yao Zheng,Shi-Zhang Qiao +7 more
TL;DR: The fundamental relationships between electronic structure, adsorption energy, and apparent activity for a wide variety of 2D electrocatalysts are described with the goal of providing a better understanding of these emerging nanomaterials at the atomic level.
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Energy and fuels from electrochemical interfaces
TL;DR: Common descriptors such as the substrate-hydroxide binding energy and the interactions in the double layer between hydroxide-oxides and H---OH are found to control individual parts of the hydrogen and oxygen electrochemistry that govern the efficiency of water-based energy conversion and storage systems.
References
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Journal ArticleDOI
Recent advances in non-precious metal catalysis for oxygen-reduction reaction in polymer electrolyte fuel cells
Frédéric Jaouen,Eric Proietti,Michel Lefèvre,Régis Chenitz,Jean-Pol Dodelet,Gang Wu,Hoon T Chung,Christina Johnston,Piotr Zelenay +8 more
TL;DR: In this paper, the authors focus on the new synthesis methods that have led to these breakthroughs and analyze the improvements required from NPMC-based catalysts to match the performance of Pt-based cathodes, even at high current density.
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Oxygen reduction on a high-surface area Pt/Vulcan carbon catalyst: a thin-film rotating ring-disk electrode study
TL;DR: In this paper, a thin-film rotating disk electrode method and its application in a rotating ring disk configuration (RRDE) to the investigation of the oxygen reduction reaction (orr) on a supported catalyst powder (Pt/Vulcan XC 72 carbon).
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Nanostructured metal chalcogenides: synthesis, modification, and applications in energy conversion and storage devices
TL;DR: This review aims to provide a summary on the liquid-phase synthesis, modifications, and energy-related applications of nanostructured metal chalcogenide (MC) materials and remarks on the challenges and perspectives for future MC research are proposed.
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Enhancement of the Electroreduction of Oxygen on Pt Alloys with Fe, Ni, and Co
TL;DR: In this article, an enhancing mechanism for the ORR based on an increased d−electron vacancy of the thin Pt surface layer caused by underlying alloy was proposed. But this mechanism was only applied to the perchloric acid solution.
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Iron-based cathode catalyst with enhanced power density in polymer electrolyte membrane fuel cells
Eric Proietti,Frédéric Jaouen,Michel Lefèvre,Nicholas Larouche,Juan Tian,Juan Herranz,Jean-Pol Dodelet +6 more
TL;DR: This work reports an iron-acetate/phenanthroline/zeolitic-imidazolate-framework-derived electrocatalyst with increased volumetric activity and enhanced mass-transport properties in polymer-electrolyte-membrane fuel cells.