Self-assembled CoSe2-FeSe2 Heteronanoparticles along the Carbon Nanotubes Network for Boosted Oxygen Evolution Reaction

Nanoscale ◽  
2021 ◽  
Author(s):  
Bin Wang ◽  
Katam Srinivas ◽  
Xinqiang Wang ◽  
Zhe Su ◽  
Bo Yu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Fuel Combustion ◽  
Alternative Technique ◽  
Hydrogen Fuel ◽  
Self Assembled

Water electrolysis is a significant alternative technique to produce clean hydrogen fuel in order to replace the environmentally distructive fossile fuel combustion. However, the sluggish oxygen evolution kintetics make this...

Nickel-Borate with 3D Hierarchical Structure as a Robust and Efficient Electrocatalyst for Urea Oxidation

2021 ◽  
Author(s):  
Jianhua Ge ◽  
yuecheng Lai ◽  
Minghui Guan ◽  
Yuhua Xiao ◽  
Juner Kuang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Hierarchical Structure ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Hydrogen Fuel ◽  
Fuel Production ◽  
Slow Kinetics ◽  
Kinetics Of

Water electrolysis has become a promisingly green and sustainable strategy for hydrogen fuel production. However, due to the slow kinetics of the oxygen evolution reaction (OER), large overpotentials are required...

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

Hierarchical Microsphere MOF Arrays with Ultralow Ir Doping for Efficient Hydrogen Evolution Coupled with Hydrazine Oxidation in Seawater

2021 ◽  
Author(s):  
Xuejun Zhai ◽  
Qingping Yu ◽  
Guishan Liu ◽  
Junlu Bi ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Efficient Catalyst ◽  
Hydrazine Oxidation ◽  
Renewable Hydrogen

Hydrogen evolution reaction (HER) based on water electrolysis is promising for renewable hydrogen production. Limited by sluggish anodic oxygen evolution reaction (OER), rational fabrication of efficient catalyst for HER coupled...

Self-assembled CuCo2S4 nanosheets with rich surface Co3+ as efficient electrocatalysts for oxygen evolution reaction

2021 ◽  
Vol 536 ◽  
pp. 147826
Author(s):  
Zewei Hao ◽  
Pengkun Wei ◽  
Yang Yang ◽  
Jingyu Sun ◽  
Yunhua Song ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Self Assembled

One-step synthesis of multi-walled carbon nanotubes/ultra-thin Ni(OH)2 nanoplate composite as efficient catalysts for water oxidation

2014 ◽  
Vol 2 (30) ◽  
pp. 11799-11806 ◽  
Author(s):  
Xuemei Zhou ◽  
Zhaoming Xia ◽  
Zhiyun Zhang ◽  
Yuanyuan Ma ◽  
Yongquan Qu
Keyword(s):  
Carbon Nanotubes ◽  
Hydrothermal Synthesis ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Highly Efficient ◽  
Multi Walled Carbon Nanotubes ◽  
One Step ◽  
Walled Carbon Nanotubes

One-step hydrothermal synthesis of ultra-thin β-Ni(OH)2 nanoplates (1.5–3.0 nm thickness) and their composite with multi-walled carbon nanotubes in the absence of surfactants function as highly efficient and stable electrocatalysts for oxygen evolution reaction.

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