Enhanced Surface Reaction Kinetics and Charge Separation of p–n Heterojunction Co 3 O 4 /BiVO 4 Photoanodes
Tianjin University · Collaborative Innovation Center of Chemical Science and Engineering Tianjin
Abstract
Surface reaction kinetics and bulk charge separation are both critical to the efficiency of solar water splitting. In addition to the well-documented surface catalytic effect, the promotion of bulk charge separation upon loading of cocatalysts has rarely been reported. This paper describes the synergetic enhancement of surface reaction kinetics and bulk charge separation by introducing discrete nanoisland p-type Co3O4 cocatalysts onto n-type BiVO4, forming a p-n Co3O4/BiVO4 heterojunction with an internal electric field to facilitate charge transport. Being highly dispersed on the surface of photoanodes, the nanoisland cocatalysts could suppress the formation of recombination centers at the…
Citation impact
- FWCI
- 29.30
- Percentile
- 100%
- References
- 34
Authors
6- XCXiaoxia ChangCorresponding
Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering Tianjin
- TWTuo Wang
Collaborative Innovation Center of Chemical Science and Engineering Tianjin, Tianjin University
- PZPeng Zhang
Collaborative Innovation Center of Chemical Science and Engineering Tianjin, Tianjin University
- JZJijie Zhang
Collaborative Innovation Center of Chemical Science and Engineering Tianjin, Tianjin University
- ALAng Li
Collaborative Innovation Center of Chemical Science and Engineering Tianjin, Tianjin University
Topics & keywords
- Photocurrent
- Heterojunction
- Chemistry
- Kinetics
- Charge carrier
- Electrode
- Water splitting
- Catalysis
- Clean water and sanitation