Crystal lattice distortion in ultrathin Co(OH)2nanosheets inducing elongated Co–OOHbonds for highly efficient oxygen evolution reaction

2017 ◽  
Vol 19 (24) ◽  
pp. 5809-5817 ◽  
Author(s):  
Haidong Yang ◽  
Yu Long ◽  
Yan Zhu ◽  
Ziming Zhao ◽  
Ping Ma ◽  
...  
Keyword(s):  
Crystal Lattice ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Lattice Distortion ◽  
Highly Efficient ◽  
Catalytic Active Sites ◽  
Cobalt Hydroxides ◽  
Crystal Lattice Distortion

The highly efficient OER performance of the ultrathin cobalt hydroxides nanosheets is due to the elongated Co–OOHbonds generated from crystal lattice distortion, which can serve as the efficiently catalytic active sites.

Capturing the active sites of multimetallic (oxy)hydroxides for the oxygen evolution reaction

2020 ◽  
Vol 13 (11) ◽  
pp. 4225-4237
Author(s):  
Xin Bo ◽  
Rosalie K Hocking ◽  
Si Zhou ◽  
Yibing Li ◽  
Xianjue Chen ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Active Sites ◽  
Alkaline Water ◽  
Catalytic Active Sites

The catalytic active sites of NiFe and NiFeCr (oxy)hydroxides are revealed by operando spectroscopic techonologies for alkaline water oxidation.

Cultivating crystal lattice distortion in IrO2via coupling with MnO2 to boost the oxygen evolution reaction with high intrinsic activity

2018 ◽  
Vol 54 (39) ◽  
pp. 4959-4962 ◽  
Author(s):  
Zhenhua Zhou ◽  
Waqas Qamar Zaman ◽  
Wei Sun ◽  
Li-mei Cao ◽  
Muhammad Tariq ◽  
...  
Keyword(s):  
Crystal Lattice ◽  
Oxygen Evolution Reaction ◽  
Lattice Distortion ◽  
Substrate Material ◽  
Intrinsic Activity ◽  
Teller Distortion ◽  
Mn Oxide ◽  
Jahn Teller ◽  
Jahn Teller Distortion ◽  
Crystal Lattice Distortion

Enhancing the OER performance by cultivating Jahn–Teller distortion in IrO2 with Mn oxide being the substrate material.

Clarifying the controversial catalytic active sites of Co3O4 for the oxygen evolution reaction

2019 ◽  
Vol 7 (40) ◽  
pp. 23191-23198 ◽  
Author(s):  
Yong Xu ◽  
Fengchu Zhang ◽  
Tian Sheng ◽  
Tao Ye ◽  
Ding Yi ◽  
...  
Keyword(s):  
Experimental Data ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Model Catalysts ◽  
Octahedral Sites ◽  
Catalytic Active Sites

Controversial results still exist about the activities of tetrahedral (Co2+) and octahedral (Co3+) sites in Co3O4 toward the OER. Theoretical and experimental data confirm that octahedral sites are responsible for the OER, using model catalysts.

Highly Efficient g‐C 3 N 4 Nanorods with Dual Active Sites as an Electrocatalyst for the Oxygen Evolution Reaction

ChemCatChem ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2870-2878 ◽  
Author(s):  
Bezawit Z. Desalegn ◽  
Harsharaj S. Jadhav ◽  
Jeong Gil Seo
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Highly Efficient

MOF-derived M-OOH with rich oxygen defects by in-situ electro-oxidation reconstitution for highly efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Zhikai Shi ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jun Huang ◽  
Yanping Hou ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Energy Production ◽  
Low Cost ◽  
Highly Efficient ◽  
Oxygen Defects ◽  
Electro Oxidation

The oxygen evolution reaction (OER) is an important half-reaction in the field of energy production. However, how effectively, simply, and greenly to prepare low-cost OER electrocatalysts remains a problem. Herein,...

In-situ coating amorphous boride on ternary pyrite-type boron sulfide for highly efficient oxygen evolution

2021 ◽  
Author(s):  
Tingting Li ◽  
Tianyun Jing ◽  
Dewei Rao ◽  
Xiaotian Jia ◽  
Yunpeng Zuo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
In Situ Coating ◽  
Electrochemical Oxygen

Multimetallic pyrite-type sulfides have been a promising electrocatalytic materials for electrochemical oxygen evolution reaction (OER), but still requires further improve due to the easily oxidization of surface atoms and the...

Interfacing RuO2 with Pt to induce efficient charge transfer from Pt to RuO2 for highly efficient and stable oxygen evolution under acidic media

2021 ◽  
Author(s):  
Taehyun Kwon ◽  
Heesu Yang ◽  
Minki Jun ◽  
Taekyung Kim ◽  
Jinwhan Joo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Charge ◽  
Stable Oxygen ◽  
The Stability

The oxygen evolution reaction (OER) requires a large overpotential which undermines the stability of electrocatalysts, typically IrOx or RuOx. RuOx is particularly vulnerable to high overpotential in acidic media, due...

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

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