Engineering Surface Structure of Spinel Oxides via High-Valent Vanadium Doping for Remarkably Enhanced Electrocatalytic Oxygen Evolution Reaction

2019 ◽  
Vol 11 (36) ◽  
pp. 33012-33021 ◽  
Author(s):  
Renjie Wei ◽  
Xiuming Bu ◽  
Wei Gao ◽  
Rovi Angelo B. Villaos ◽  
Gennevieve Macam ◽  
...  
Keyword(s):  
Surface Structure ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Vanadium Doping ◽  
Spinel Oxides ◽  
High Valent

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

Engineering the Surface Structure of Binary/Ternary Ferrite Nanoparticles as High-Performance Electrocatalysts for the Oxygen Evolution Reaction

ChemCatChem ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 1075-1083 ◽  
Author(s):  
Pathik Sahoo ◽  
Jing-Bo Tan ◽  
Zhi-Ming Zhang ◽  
Shiva Kumar Singh ◽  
Tong-Bu Lu
Keyword(s):  
Surface Structure ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Ferrite Nanoparticles

scholarly journals Enlarged CoO Covalency in Octahedral Sites Leading to Highly Efficient Spinel Oxides for Oxygen Evolution Reaction

2018 ◽  
Vol 30 (32) ◽  
pp. 1802912 ◽  
Author(s):  
Ye Zhou ◽  
Shengnan Sun ◽  
Jiajia Song ◽  
Shibo Xi ◽  
Bo Chen ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Octahedral Sites ◽  
Highly Efficient ◽  
Spinel Oxides

Optimal Geometrical Configuration of Cobalt Cations in Spinel Oxides to Promote Oxygen Evolution Reaction

2020 ◽  
Vol 59 (12) ◽  
pp. 4736-4742 ◽  
Author(s):  
Zhijuan Liu ◽  
Guangjin Wang ◽  
Xiaoyan Zhu ◽  
Yanyong Wang ◽  
Yuqin Zou ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Geometrical Configuration ◽  
Spinel Oxides

Optimal Geometrical Configuration of Cobalt Cations in Spinel Oxides to Promote Oxygen Evolution Reaction

2020 ◽  
Vol 132 (12) ◽  
pp. 4766-4772 ◽  
Author(s):  
Zhijuan Liu ◽  
Guangjin Wang ◽  
Xiaoyan Zhu ◽  
Yanyong Wang ◽  
Yuqin Zou ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Geometrical Configuration ◽  
Spinel Oxides

scholarly journals Generation and Reactivity of a NiIII2(μ-1,2-peroxo) Complex

2020 ◽  
Author(s):  
Norman Zhao ◽  
Alexander S. Filatov ◽  
Jiaze Xie ◽  
Ethan A. Hill ◽  
John Anderson
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxidation States ◽  
Peroxo Complex ◽  
Intermediate Species ◽  
X Ray Diffraction ◽  
X Ray ◽  
Tetrabutylammonium Chloride ◽  
High Valent ◽  
X Ray Absorption

Ni-based oxide materials are promising candidates for catalyzing the oxygen evolution reaction. The detailed mechanism of water splitting in these systems has been of interest with a goal of understanding the intermediate species vital for catalytic activity. A potential intermediate species prior to release of oxygen is a bridging Ni<sup>III</sup><sub>2</sub>(<i>μ</i>-1,2-peroxo) complex. However, Ni<sub>2</sub>(<i>μ</i>-1,2-peroxo) complexes are rare in general and are unknown with oxidation states higher than Ni<sup>II</sup>. Herein, we report the isolation of such an unusual high-valent species in a Ni<sup>III</sup><sub>2</sub>(<i>μ</i>-1,2-peroxo) complex, which has been characterized using single-crystal X-ray diffraction and X-ray absorption, NMR, and UV-vis spectroscopies. In addition, treatment with excess tetrabutylammonium chloride results in regeneration of the precursor Ni–Cl species, implicating the reversible release of oxygen or a reactive oxygen species. Taken together, this suggests that Ni<sup>III</sup><sub>2</sub>(<i>μ</i>-1,2-peroxo) species are accessible and may be viable intermediates during the oxygen evolution reaction.

Sign in / Sign up

Export Citation Format

Share Document