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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Atomically Dispersed Hierarchically Ordered Porous Fe-N-C Electrocatalyst for High Performance Electrocatalytic Oxygen Reduction in Zn-Air Battery
Xibo Zhang,Xiao Han,Zhe Jiang,Jie Xu,Luning Chen,Yakun Xue,Anmin Nie,Zhaoxiong Xie,Qin Kuang,Lan-Sun Zheng +9 more
TL;DR: In this article, a 3D hierarchically ordered microporous-mesoporous-macroporous nitrogen doped carbon (3DOM Fe-N-C-900) was used as an efficient oxygen reduction reaction (ORR) catalyst.
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Metal-free heteroatom-doped carbon-based catalysts for ORR: A critical assessment about the role of heteroatoms
TL;DR: In this article, the authors present a critical assessment about the role of heteroatoms on ORR from the analysis of the literature that combine both experimental work and computational modelling. But, the complexity of isolating one specific functionality, the difficult unambiguous characterization of the species and the influence of the intrinsic properties of the carbon materials, make the identification of the active sites a complex and controversial issue.
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Nitrogen‐Doped Porous Carbon Supported Nonprecious Metal Single‐Atom Electrocatalysts: from Synthesis to Application
Jiaojiao Guo,Juanjuan Huo,Yan Liu,Wenjian Wu,Yong Wang,Minghong Wu,Hao Liu,Hao Liu,Guoxiu Wang +8 more
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Synthesis, Structure, Properties, and Applications of Bimetallic Nanoparticles of Noble Metals
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Core-shell motif construction: highly graphitic nitrogen-doped porous carbon electrocatalysts using MOF-derived carbon@COF heterostructures as sacrificial templates
Shuaihua Zhang,Shuaihua Zhang,Wei Xia,Wei Xia,Qian Yang,Yusuf Valentino Kaneti,Yusuf Valentino Kaneti,Xingtao Xu,Saad M. Alshehri,Tansir Ahamad,Md. Shahriar A. Hossain,Jongbeom Na,Jing Tang,Yusuke Yamauchi,Yusuke Yamauchi +14 more
TL;DR: In this article, a highly graphitic nitrogen-doped porous carbon electrocatalyst (GC@COF-NC) is fabricated by utilizing metal-organic framework (MOF)-derived GC@ COF core-shell heterostructure as a sacrificial template.
References
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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.
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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).
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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.
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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.
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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.