Double exchange interaction promoted high-valence metal sites for neutral oxygen evolution reaction

2020 ◽  
Vol 56 (95) ◽  
pp. 15004-15007
Author(s):  
Jisi Li ◽  
Jingjing Ma ◽  
Kun Du ◽  
Erling Zhao ◽  
Jiaxin Guo ◽  
...  
Keyword(s):  
Transition Metal ◽  
Exchange Interaction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Exchange ◽  
Double Exchange Interaction ◽  
High Valent

A unique double-exchange strategy is adopted to access active high-valent transition metal sites during neutral oxygen evolution reaction.

Boosted Oxygen Evolution Reactivity by Igniting Double Exchange Interaction in Spinel Oxides

2019 ◽  
Vol 142 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Jiangtian Li ◽  
Deryn Chu ◽  
Hong Dong ◽  
David R. Baker ◽  
Rongzhong Jiang
Keyword(s):  
Exchange Interaction ◽  
Oxygen Evolution ◽  
Double Exchange ◽  
Double Exchange Interaction ◽  
Spinel Oxides

High-valent Zirconium-doping modified Co3O4 weave-like nanoarray boosts oxygen evolution reaction

2021 ◽  
pp. 161172
Author(s):  
Guijin Yang ◽  
Botao Zhu ◽  
Yujun Fu ◽  
Jing Zhao ◽  
Yanna Lin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Zirconium Doping ◽  
High Valent

Graphene-Induced Growth of Co3O4 Nanoplates with Modulable Oxygen Vacancies for Improved OER Properties

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xinheng Li ◽  
Lei Qi ◽  
Mei Wang
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Hydrothermal Treatment ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
Transition Metal Oxide ◽  
Oxide Hydroxide

Transition metal oxide/ hydroxide is intensively studied for oxygen evolution reaction (OER). Herein, graphene-induced growth of Co3O4 nanoplates with modulable oxygen vacancies via hydrothermal treatment is reported. With the increase...

scholarly journals The Effect of Iron Impurities on Transition Metal Catalysts for the Oxygen Evolution Reaction in Alkaline Environment: Activity Mediators or Active Sites?

2020 ◽  
Author(s):  
Ioannis Spanos ◽  
Justus Masa ◽  
Aleksandar Zeradjanin ◽  
Robert Schlögl
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Water Electrolysis ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Alkaline Water Electrolysis ◽  
Co Catalysts ◽  
Model Transition

AbstractThere is an ongoing debate on elucidating the actual role of Fe impurities in alkaline water electrolysis, acting either as reactivity mediators or as co-catalysts through synergistic interaction with the main catalyst material. This perspective summarizes the most prominent oxygen evolution reaction (OER) mechanisms mostly for Ni-based oxides as model transition metal catalysts and highlights the effect of Fe incorporation on the catalyst surface in the form of impurities originating from the electrolyte or co-precipitated in the catalyst lattice, in modulating the OER reaction kinetics, mechanism and stability. Graphic Abstract

The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes

2019 ◽  
Vol 55 (60) ◽  
pp. 8744-8763 ◽  
Author(s):  
Wei Li ◽  
Dehua Xiong ◽  
Xuefei Gao ◽  
Lifeng Liu
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Dynamic Changes ◽  
Metal Phosphide ◽  
Electrocatalytic Performance ◽  
Metal Phosphides ◽  
Compositional Changes ◽  
Transition Metal Phosphide ◽  
Transition Metal Phosphides

Dynamic morphological, structural and compositional changes will occur when transition metal phosphides and chalcogenides are used to catalyze the oxygen evolution reaction, which can substantially enhance their electrocatalytic performance.

Sign in / Sign up

Export Citation Format

Share Document