Ultrathin Spinel‐Structured Nanosheets Rich in Oxygen Deficiencies for Enhanced Electrocatalytic Water Oxidation
University of Science and Technology of China · Collaborative Innovation Center of Chemistry for Energy Materials · +2 more institutions
Abstract
Electrochemical water splitting is a clean technology for H2 fuels, but greatly hindered by the slow kinetics of the oxygen evolution reaction (OER). Herein, a series of spinel-structured nanosheets with oxygen deficiencies and ultrathin thicknesses were designed to increase the reactivity and the number of active sites of the catalysts, which were then taken as an excellent platform for promoting the water oxidation process. Theoretical investigations showed that the oxygen vacancies confined in the ultrathin nanosheet could lower the adsorption energy of H2O, leading to increased OER efficiency. As expected, the NiCo2O4 ultrathin nanosheets rich in oxygen vacancies exhibited a large current density of 285 mA…
Citation impact
- FWCI
- 34.18
- Percentile
- 100%
- References
- 34
Authors
10- JBJian Bao
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- XZXiaodong ZhangCorresponding
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale, Collaborative Innovation Center of Chemistry for Energy Materials
- BFBo Fan
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- JZJiajia Zhang
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- MZMin Zhou
Technische Universität Ilmenau
Topics & keywords
- Overpotential
- Oxygen evolution
- Spinel
- Nanosheet
- Catalysis
- Water splitting
- Oxygen
- Chemical engineering
- Industry, innovation and infrastructure