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
Simultaneous edge and electronic control of MoS2 nanosheets through Fe doping for an efficient oxygen evolution reaction.
Baoshan Tang,Baoshan Tang,Zhi Gen Yu,Hwee Leng Seng,Nengduo Zhang,Xixia Liu,Yong-Wei Zhang,Weifeng Yang,Hao Gong +8 more
TL;DR: Fe-doped MoS2 (Fe-MoS2) nanosheets are reported in which the Fe dopant influences the synthesis process to simultaneously tune the edge sites and electronic properties of MoS3, and exhibit greatly improved catalytic activity towards the OER.
Journal ArticleDOI
Two in one: N-doped tubular carbon nanostructure as an efficient metal-free dual electrocatalyst for hydrogen evolution and oxygen reduction reactions
TL;DR: In this article, an efficient N-doped, pore-engineered carbon as a dual electrocatalyst for hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) is developed with the potential to replace traditional precious metal (Pt)-based catalysts.
Journal ArticleDOI
Robust and Highly Active FeNi@NCNT Nanowire Arrays as Integrated Air Electrode for Flexible Solid-State Rechargeable Zn-Air Batteries
Xiaotao Zhao,Xiaotao Zhao,Syed Comail Abbas,Yiyin Huang,Jiangquan Lv,Maoxiang Wu,Yaobing Wang +6 more
Journal ArticleDOI
Sepia-Derived N, P Co-doped Porous Carbon Spheres as Oxygen Reduction Reaction Electrocatalyst and Supercapacitor
TL;DR: In this article, N, P co-doped porous carbon spheres (NPCS) derived from sepia were fabricated through the simple process of pyrolysis and activation in the presence of poly(bisphenoxy)phosphazene.
Journal ArticleDOI
Atomically dispersed catalysts for hydrogen/oxygen evolution reactions and overall water splitting
Qiaoqiao Zhang,Jingqi Guan +1 more
TL;DR: In this paper, a review of single-atom catalysts (SACs) in electrochemical water splitting is presented, focusing on various SACs including Mn, Fe, Co, Ni, Mo, Pd, Ru, Rh, Ir, and Pt with single-metal or dual-metal sites for hydrogen evolution reaction, oxygen evolution reaction and overall water splitting.
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).