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.
Journal ArticleDOI
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
Preparation and surface characterization of Pt-Au/C cathode catalysts with ceria modification for oxygen reduction reaction
TL;DR: In this article, Alloy catalysts of Pt 50 Au 50 /Ce x C with various Ce additions (x ) were prepared for the oxygen reduction reaction (ORR) and the characterization of the alloy structures, surface species, and electro-catalytic activities of prepared alloy catalysts were performed by XRD, temperature-programmed reduction (TPR), and rotating disc electrode (RDE) technique, respectively.
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One-step solid-phase synthesis of ultrasmall homogeneous face-centered tetragonal FePt nanoparticles encapsulated in thin carbon shells
Chunnian He,Naiqin Zhao +1 more
TL;DR: In this paper, discrete, homogenous and ultrasmall (mostly 2-4 nm) L10-ordered fct FePt nanoparticles encapsulated in well-graphitized thin carbon shells have been prepared by a one-step solid-phase synthesis technique.
Patent
Intermetallic compounds for use as catalysts and catalytic systems
TL;DR: In this article, the structure of ordered intermetallic compounds enables such compounds to function as highly efficient catalysts, and they were used to catalyze reactions in fuel cells (e.g., hydrogen fuel cells), amongst numerous other applications.
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Development of Dispersed-Catalyst/NSTF Hybrid Electrode
Anusorn Kongkanand,Jeanette E. Owejan,Scott C. Moose,Matthew Dioguardi,Mahesh Biradar,Rohit Makharia +5 more
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An Examination of the Oxygen Reduction Reaction on RuO2-based Oxide Coatings Formed on Titanium Substrates
TL;DR: The catalytic activity of the oxide-coated electrodes for the oxygen reduction reaction (ORR) was evaluated by cyclic voltammetry in 0.5m H2SO4 at 60°C in a stationary state as mentioned in this paper.