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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The Role of Transition Metals in the Catalytic Activity of Pt Alloys
Minhua Shao,Amra Peles,Dong Su +2 more
TL;DR: In this article, it was shown that the effects of transition metals could only extend to a very thin Pt shell, which was 0.9-1.0 nm for Pt3Ni.
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High performance Pt-free cathode catalysts for polymer electrolyte membrane fuel cells prepared from widely available chemicals
Yuta Nabae,Yongbo Kuang,Masayuki Chokai,Ichihara Takeo,Ayano Isoda,Teruaki Hayakawa,Tsutomu Aoki +6 more
TL;DR: In this article, a Pt-free cathode catalyst for polymer electrolyte fuel cells has been synthesized by the multi-step pyrolysis of polyimide fine particles with a diameter of about 100 nm.
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Electrochemical performance of a novel CoTETA/C catalyst for the oxygen reduction reaction
TL;DR: In this article, a novel CoTETA/C catalyst for the oxygen reduction reaction (ORR) was reported, which was prepared from a carbon-supported cobalt triethylenetetramine chelate, followed by heat treatment in an inert atmosphere.
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Platinum-monolayer Electrocatalysts: Palladium Interlayer on IrCo Alloy Core Improves Activity in Oxygen-reduction Reaction
Kuanping Gong,Wei-Fu Chen,Kotaro Sasaki,Dong Su,Miomir B. Vukmirovic,Wei-Ping Zhou,Elise L. Izzo,Carmen Perez-Acosta,Pussana Hirunsit,Perla B. Balbuena,Radoslav R. Adzic +10 more
TL;DR: In this article, the synthesis and electrocatalytic properties of a new low-Pt electrocatalyst consisting of an IrCo core, a Pd interlayer, and a surface Pt monolayer were described.
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Fe–Nx/C electrocatalysts synthesized by pyrolysis of Fe(II)–2,3,5,6-tetra(2-pyridyl)pyrazine complex for PEM fuel cell oxygen reduction reaction
Amado Velázquez-Palenzuela,Amado Velázquez-Palenzuela,Lei Zhang,Liucheng Wang,Liucheng Wang,Pere-Lluís Cabot,Enric Brillas,Ken Tsay,Jiujun Zhang +8 more
TL;DR: In this article, 2,3,5,6-Tetra(2-pyridyl)pyrazine (TPPZ) was employed as a ligand to prepare an iron(II) complex (Fe-TPPZ), which served as a precursor to synthesize carbon-supported catalysts (Fe−N x /C) through heat-treatment at 600, 700, 800 and 900 ǫ c under N 2 atmosphere.