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
The role of oxygen vacancies of ABO3 perovskite oxides in the oxygen reduction reaction
TL;DR: In this article, a review summarizes recent research advances on understanding the role of oxygen vacancies of the ABO3 perovskite oxides in catalyzing the oxygen reduction reaction (ORR).
Journal ArticleDOI
A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts.
Iann C. Gerber,Philippe Serp +1 more
TL;DR: Some answers are provided to the question "How and why anchoring metal nanoparticles, clusters, or single atoms on carbon materials for catalysis?", and some important effects in catalysis inherent to the presence of a carbon-type support are described.
Journal ArticleDOI
Synergistic Effects between Atomically Dispersed Fe−N−C and C−S−C for the Oxygen Reduction Reaction in Acidic Media
Hangjia Shen,Eduardo Gracia-Espino,Jingyuan Ma,Ketao Zang,Jun Luo,Le Wang,Sanshuang Gao,Xamxikamar Mamat,Guangzhi Hu,Guangzhi Hu,Thomas Wågberg,Shaojun Guo +11 more
TL;DR: This work has obtained a sulfur-doped Fe/N/C catalyst (denoted as Fe/SNC) that exhibits much better ORR activity than the sulfur-free variant (Fe/NC) in 0.5 m H2 SO4 in acidic solution.
Journal ArticleDOI
An Electrocatalytic Approach to the Radical Difunctionalization of Alkenes
Gregory S. Sauer,Song Lin +1 more
TL;DR: In this article, the design principles underpinning the development of electrochemical diazidation, dichlorination, and halotrifluoromethylation of alkenes were described.
Journal ArticleDOI
Carbon-Based Electrocatalysts for Hydrogen and Oxygen Evolution Reactions
TL;DR: In this article, the development of carbon-based electrocatalysts for hydrogen and oxygen evolution reactions (HER and OER) is discussed, as well as their challenges and opportunities.
References
More filters
Journal ArticleDOI
Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides
TL;DR: Film and powders of TiO2-x Nx have revealed an improvement over titanium dioxide (TiO2) under visible light in optical absorption and photocatalytic activity such as photodegradations of methylene blue and gaseous acetaldehyde and hydrophilicity of the film surface.
Journal ArticleDOI
One‐Dimensional Nanostructures: Synthesis, Characterization, and Applications
Younan Xia,Peidong Yang,Yugang Sun,Yiying Wu,Brian Mayers,Byron D. Gates,Yadong Yin,Franklin Kim,Haoquan Yan +8 more
TL;DR: A comprehensive review of 1D nanostructures can be found in this article, where the authors provide a comprehensive overview of current research activities that concentrate on one-dimensional (1D) nanostructure (wires, rods, belts and tubes).
Journal ArticleDOI
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Jens K. Nørskov,Jan Rossmeisl,and Ashildur Logadottir,L. Lindqvist,John R. Kitchin,Thomas Bligaard,Hannes Jónsson +6 more
TL;DR: In this paper, the stability of reaction intermediates of electrochemical processes on the basis of electronic structure calculations was analyzed and a detailed description of the free energy landscape of the electrochemical oxygen reduction reaction over Pt(111) as a function of applied bias was presented.
Journal ArticleDOI
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
TL;DR: Thermal annealing converts the internal particle structure from a chemically disordered face- centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies that can support high-density magnetization reversal transitions.
Journal ArticleDOI
Exceptional chemical and thermal stability of zeolitic imidazolate frameworks
Kyo Sung Park,Zheng Ni,Adrien P. Côté,Jae Yong Choi,Rudan Huang,Fernando J. Uribe-Romo,Hee K. Chae,Michael O'Keeffe,Omar M. Yaghi +8 more
TL;DR: Study of the gas adsorption and thermal and chemical stability of two prototypical members, ZIF-8 and -11, demonstrated their permanent porosity, high thermal stability, and remarkable chemical resistance to boiling alkaline water and organic solvents.