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
Electrocatalysts Derived from Metal–Organic Frameworks for Oxygen Reduction and Evolution Reactions in Aqueous Media
TL;DR: This Review covers MOF-derived ORR/OER catalysts in electrochemical energy conversion, with a focus on the different strategies of material design and preparation, such as composition control and nanostructure fabrication, to improve the activity and durability of MOFs-derived electrocatalysts.
Journal ArticleDOI
Integrating cobalt phosphide and cobalt nitride-embedded nitrogen-rich nanocarbons: high-performance bifunctional electrocatalysts for oxygen reduction and evolution
TL;DR: In this article, a unique nitrogen-rich sandwich-architectured catalyst (CoNP@NC/NG) was proposed as a highly efficient bifunctional electrocatalyst for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR).
Journal ArticleDOI
Metal-organic framework derived carbon materials for electrocatalytic oxygen reactions: Recent progress and future perspectives
TL;DR: In this paper, the most recent progress of metal-organic framework (MOF)-derived carbon materials for ORR/OER with the focus on not only the active site engineering but also the design of porous structure.
Journal ArticleDOI
A rechargeable iodine-carbon battery that exploits ion intercalation and iodine redox chemistry
TL;DR: The authors combine the ion intercalation properties of porous graphitic carbons with the redox chemistry of iodine to produce iodine–carbon batteries with high reversible capacities.
Journal ArticleDOI
Operando identification of site-dependent water oxidation activity on ruthenium dioxide single-crystal surfaces
Reshma R. Rao,Manuel J. Kolb,Livia Giordano,Anders Pedersen,Yu Katayama,Yu Katayama,Jonathan Hwang,Apurva Mehta,Hoydoo You,Jaclyn R. Lunger,Hua Zhou,Niels Bendtsen Halck,Tejs Vegge,Ib Chorkendorff,Ifan E. L. Stephens,Ifan E. L. Stephens,Yang Shao-Horn +16 more
TL;DR: In this article, surface X-ray scattering coupled with density functional theory and surface-enhanced infrared absorption spectroscopy was employed to examine the oxygen evolution reaction on RuO2 surfaces as a function of voltage.
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).