Tailoring Lewis Acidity of Metal Oxides on Nickel to Boost Electrocatalytic Hydrogen Evolution in Neutral Electrolyte
Tianjin University of Technology · Division of Materials Science and Engineering · +1 more institution
Abstract
Neutral-pH water splitting for hydrogen production features a benign environment that could alleviate catalyst and electrolyzer corrosion but calls for the corresponding high-efficiency and earth-abundant hydrogen evolution reaction (HER) catalysts. Herein, we first designed a series of metal oxides decorated on Ni as the model catalysts and found a volcano-shaped relationship between the Lewis acidity of Ni/metal oxides and HER activity in neutral media. The Ni/ZnO with the optimum Lewis acidity could balance water dissociation and hydroxyl desorption, thereby greatly boosting the HER. On the basis of this finding, we further in situ grew the Ni/ZnO heterostructure on a three-dimensional conductive support.…
Citation impact
- FWCI
- 21.10
- Percentile
- 100%
- References
- 60
Authors
10- LWLinlin Wang
Tianjin University of Technology, Division of Materials Science and Engineering
- XWXiaoran Wang
Tianjin University of Technology, Division of Materials Science and Engineering
- HWHongjuan Wang
Tianjin University of Technology, Division of Materials Science and Engineering
- CZChong Zhang
University of Science and Technology of China
- JLJingjing Li
Tianjin University of Technology, Division of Materials Science and Engineering
Topics & keywords
- Chemistry
- Catalysis
- Electrolyte
- Inorganic chemistry
- Electrolysis of water
- Dissociation (chemistry)
- Electrolysis
- Nickel