Activity of pure and transition metal-modified CoOOH for the oxygen evolution reaction in an alkaline medium

2017 ◽  
Vol 5 (2) ◽  
pp. 842-850 ◽  
Author(s):  
Zhu Chen ◽  
Coleman X. Kronawitter ◽  
Yao-Wen Yeh ◽  
Xiaofang Yang ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Oxygen Evolution Reaction ◽  
Surface Species ◽  
Catalytic Activities ◽  
Cobalt Oxyhydroxide ◽  
Nickel Incorporation

Cobalt oxyhydroxide nanowires show excellent oxygen evolution activity, which is further enhanced by nickel incorporation. Effects of nickel and manganese incorporation on the catalytic activities are explained in term of surface species stabilities.

scholarly journals Stability profiles of transition metal oxides in the oxygen evolution reaction in alkaline medium

2019 ◽  
Vol 7 (45) ◽  
pp. 25865-25877 ◽  
Author(s):  
Aliki Moysiadou ◽  
Xile Hu
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Metal Oxides ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Transition Metal Oxides ◽  
Oxygen Evolution Reaction ◽  
Electrolyte Solutions ◽  
Compositional Changes ◽  
Dynamic Exchange

Metal oxides undergo compositional changes due to a dynamic exchange of metal ions with the electrolyte solutions during the oxygen evolution reaction.

Solution combustion synthesis of Ni-based hybrid metal oxides for oxygen evolution reaction in alkaline medium

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1694-1703
Author(s):  
Aymen S. Abu Hatab ◽  
Yahia H. Ahmad ◽  
Mohd B. Abdul Rahman ◽  
Siham Y. Al-Qaradawi
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Combustion Synthesis ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Transition Metal Oxides ◽  
Oxygen Evolution Reaction ◽  
Solution Combustion Synthesis ◽  
Solution Combustion ◽  
Mixed Transition

Ni-based mixed transition metal oxides (MTMO) (NixM1−xOy) were synthesized using the solution combustion synthesis (SCS), and investigated as electrocatalysts towards oxygen evolution reaction (OER) in alkaline medium.

Interface modulation of a layer-by-layer electrodeposited FexCo(1−x)P/NiP@CC heterostructure for high-performance oxygen evolution reaction

2020 ◽  
Vol 4 (4) ◽  
pp. 1863-1874 ◽  
Author(s):  
Bezawit Z. Desalegn ◽  
Harsharaj S. Jadhav ◽  
Jeong Gil Seo
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
High Performance ◽  
Layer By Layer ◽  
Interface Modulation

Heterostructuring assisted trimetallic transition metal phoshide with in situ generated active sites, exhibits superior catalytic activity towards oxygen evolution reaction in alkaline medium.

scholarly journals Direct detection of surface species formed on iridium electrocatalysts during the oxygen evolution reaction

2021 ◽  
Author(s):  
Arjun BalaKrishnan ◽  
Niclas Blanc ◽  
Ulrich Hagemann ◽  
Parham Gemagami ◽  
Kevin Wonner ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Direct Detection ◽  
Surface Species

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.

Ternary NiFeMn layered double hydroxides as highly-efficient oxygen evolution catalysts

2016 ◽  
Vol 52 (5) ◽  
pp. 908-911 ◽  
Author(s):  
Zhiyi Lu ◽  
Li Qian ◽  
Yang Tian ◽  
Yaping Li ◽  
Xiaoming Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
Metal Ratio ◽  
Double Hydroxides

A ternary NiFeMn-LDH with an optimized transition metal ratio is developed as an advanced catalyst for the oxygen evolution reaction.

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