Recent Advances in Electrocatalysts for Oxygen Reduction Reaction
Reads0
Chats0
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
More filters
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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
More filters
Journal ArticleDOI
Particle size and alloying effects of Pt-based alloy catalysts for fuel cell applications
TL;DR: In this article, carbon-supported Pt-based binary alloy electrocatalysts (Pt-Co, Pt-Cr and Pt-Ni) were prepared by incipient wetness method to investigate the origin of the enhanced activity of the oxygen reduction reaction in fuel cells.
Journal ArticleDOI
Octahedral PtNi nanoparticle catalysts: exceptional oxygen reduction activity by tuning the alloy particle surface composition.
TL;DR: It is demonstrated how shape selectivity and optimized surface composition result in exceptional oxygen reduction activity of octahedral PtNi nanoparticles (NPs) by utilizing a facile, completely surfactant-free solvothermal synthesis.
Journal ArticleDOI
Recent progress on nitrogen/carbon structures designed for use in energy and sustainability applications
TL;DR: A comprehensive overview of advances in the last half decade on state-of-the-art carbon modification with nitrogen heteroatoms can be found in this paper, where the benefits and effects of nitrogen modification for specific applications in the energy and environmental fields are reviewed.
Journal ArticleDOI
Size-specific catalytic activity of platinum clusters enhances oxygen reduction reactions.
Kimihisa Yamamoto,Takane Imaoka,Wang-Jae Chun,Osamu Enoki,Hideaki Katoh,Masahiro Takenaga,Atsunori Sonoi +6 more
TL;DR: This work presents a practical synthesis for ultrafine subnanometre platinum clusters using a spherical macromolecular template with no disorder in molecular weight or structure, and finds that the clusters exhibit very high catalytic activity for the four-electron reduction of oxygen molecules.
Journal ArticleDOI
Amine-Assisted Synthesis of Concave Polyhedral Platinum Nanocrystals Having {411} High-Index Facets
TL;DR: It is demonstrated in this work that introducing amines as the surface controller allows concave Pt nanocrystals having {411} high-index facets to be prepared through a facile wet-chemical route.