Continuous oxygen vacancy engineering of the Co3O4 layer for an enhanced alkaline electrocatalytic hydrogen evolution reaction

2019 ◽  
Vol 7 (22) ◽  
pp. 13506-13510 ◽  
Author(s):  
Haoxuan Zhang ◽  
Jiahao Zhang ◽  
Yuhang Li ◽  
Haibo Jiang ◽  
Hao Jiang ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Medium Level ◽  
Active Intermediate

A medium level of Ov can optimize the active intermediate adsorption to accelerate reaction kinetics, markedly enhancing alkaline HER performances.

Tungsten-doped Ni–Co phosphides with multiple catalytic sites as efficient electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (28) ◽  
pp. 16859-16866 ◽  
Author(s):  
Shan-Shan Lu ◽  
Li-Ming Zhang ◽  
Yi-Wen Dong ◽  
Jia-Qi Zhang ◽  
Xin-Tong Yan ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Media ◽  
Water Dissociation ◽  
Overall Water Splitting ◽  
Catalytic Sites ◽  
Additional Water ◽  
Dissociation Step

The design of electrocatalysts including precious and nonprecious metals for the hydrogen evolution reaction (HER) in alkaline media remains challenging due to the sluggish reaction kinetics caused by the additional water dissociation step.

Sulfur poisoning of emergent and current electrocatalysts: vulnerability of MoS2, and direct correlation to Pt hydrogen evolution reaction kinetics

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8879-8883 ◽  
Author(s):  
Shu Min Tan ◽  
Zdeněk Sofer ◽  
Martin Pumera
Keyword(s):  
Reaction Kinetics ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Sulfur Poisoning ◽  
Before And After

The impacts of sulfur poisoning on both MoS2 and Pt were examined through comparisons between their HER electrocatalytic activities before and after poisoning. In particular, the poisoning of Pt was directly correlated to its HER performance.

Oxygen vacancy-assisted hydrogen evolution reaction of the Pt/WO3 electrocatalyst

2019 ◽  
Vol 7 (11) ◽  
pp. 6285-6293 ◽  
Author(s):  
Han Tian ◽  
Xiangzhi Cui ◽  
Liming Zeng ◽  
Liang Su ◽  
Yiling Song ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Catalytic Effect

Oxygen vacancy creation in WO3 induces a synergetic catalytic effect between Pt atoms and def-WO3, thus bestowing excellent HER performances.

Sign in / Sign up

Export Citation Format

Share Document