PatentDOI
Metal-free bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions
Reads0
Chats0
TLDR
A mesoporous carbon foam co-doped with nitrogen and phosphorus that has a large surface area and good electrocatalytic properties for both ORR and OER and is tested as an air electrode for primary and rechargeable Zn-air batteries.Abstract:
A co-doped carbon material, methods of making such materials, and electrochemical cells and devices comprising such materials are provided. The co-doped carbon material comprises a mesoporous carbon material doped with nitrogen and phoshporous (NPMC). The present NPMC exhibit catalytic activity for both oxygen reduction reaction and oxygen evolution reaction and may be useful as an electrode in an electrochemical cell and particularly as part of a battery. The present NPMC materials may be used as electrodes in primary zinc-air batteries and in rechargeable zinc-air batteries and many other energy systems.read more
Citations
More filters
Journal ArticleDOI
Engineering surface atomic structure of single-crystal cobalt (II) oxide nanorods for superior electrocatalysis.
Tao Ling,Dong-Yang Yan,Yan Jiao,Hui Wang,Yao Zheng,Xueli Zheng,Jing Mao,Xi-Wen Du,Zhenpeng Hu,Mietek Jaroniec,Shi-Zhang Qiao,Shi-Zhang Qiao +11 more
TL;DR: Tuning of the atomic structure of one-dimensional single-crystal cobalt (II) oxide (CoO) nanorods by creating oxygen vacancies on pyramidal nanofacets shows that the surface atomic structure engineering is important for the fabrication of efficient and durable electrocatalysts.
Journal ArticleDOI
Nitrogen, Phosphorus, and Fluorine Tri‐doped Graphene as a Multifunctional Catalyst for Self‐Powered Electrochemical Water Splitting
TL;DR: It was found that thermal decomposition of AHF provides nitrogen, phosphorus, and fluorine sources for tri-doping with N, P, and F, and simultaneously facilitates template-free formation of porous structures as a result of thermal gas evolution.
Journal ArticleDOI
Defect Engineering on Electrode Materials for Rechargeable Batteries.
Yiqiong Zhang,Yiqiong Zhang,Li Tao,Chao Xie,Dongdong Wang,Yuqin Zou,Ru Chen,Yanyong Wang,Chuankun Jia,Shuangyin Wang +9 more
TL;DR: Recent advances regarding defect engineering in electrode materials for rechargeable batteries are systematically summarized, with a special focus on the application of metal-ion batteries, lithium-sulfur batteries, and metal-air batteries.
Journal ArticleDOI
Metal ion cycling of Cu foil for selective C–C coupling in electrochemical CO2 reduction
Kun Jiang,Robert B. Sandberg,Austin Akey,Xinyan Liu,David C. Bell,Jens K. Nørskov,Karen Chan,Haotian Wang +7 more
TL;DR: In this article, the authors use density functional theory to determine the initial C-C coupling steps on different Cu facets in CO2 reduction, and suggest that the Cu(100) and stepped (211) facets favour C2+ product formation over Cu(111).
Journal ArticleDOI
MOF-Derived Bifunctional Cu3 P Nanoparticles Coated by a N,P-Codoped Carbon Shell for Hydrogen Evolution and Oxygen Reduction.
TL;DR: This strategy of using a diverse MOF as a structural and compositional material to create a new multifunctional composite/hybrid may expand the opportunities to explore highly efficient and robust non-noble-metal catalysts for energy-conversion reactions.
References
More filters
Journal ArticleDOI
Electrical Energy Storage for the Grid: A Battery of Choices
TL;DR: The battery systems reviewed here include sodium-sulfur batteries that are commercially available for grid applications, redox-flow batteries that offer low cost, and lithium-ion batteries whose development for commercial electronics and electric vehicles is being applied to grid storage.
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
Nitrogen-doped carbon nanotube arrays with high electrocatalytic activity for oxygen reduction.
TL;DR: It is reported that vertically aligned nitrogen-containing carbon nanotubes (VA-NCNTs) can act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction in alkaline fuel cells.
Journal ArticleDOI
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces
Isabela C. Man,Hai-Yan Su,Federico Calle-Vallejo,Heine Anton Hansen,José I. Martínez,Nilay İnoğlu,John R. Kitchin,Thomas F. Jaramillo,Jens K. Nørskov,Jan Rossmeisl +9 more
TL;DR: In this article, a large database of HO* and HOO* adsorption energies on oxide surfaces was used to analyze the reaction free energy diagrams of all the oxides in a general way.
Journal ArticleDOI
Sulfur and Nitrogen Dual-Doped Mesoporous Graphene Electrocatalyst for Oxygen Reduction with Synergistically Enhanced Performance†
TL;DR: In this paper, Mesoporous graphene doped with both N and S atoms (N-S-G) was prepared in one step and studied as an electrochemical catalyst for the oxygen reduction reaction (ORR).