Journal
NANO RESEARCH
Volume 13, Issue 1, Pages 121-126Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-019-2582-6
Keywords
S doping; MoO2; defect; electron structure; charge transfer
Categories
Funding
- Research Project of the Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education [2017005]
- National Natural Science Foundation of China [51571072, 51871078]
- Heilongjiang Science Foundation [E2018028]
Ask authors/readers for more resources
The electrocatalytic hydrogen evolution reaction (HER) is one of the most promising ways for low-cost hydrogen production in the future. In this work, hetero S atoms were introduced into the MoO2 to enhance the catalytic activity by simultaneously adjusting electron structure, engineering lattice defect, and increasing oxygen vacancies. And the S doped MoO2 nanosheets with proper S doping amount show the enhanced performance for HER. The optimized catalyst shows a small onset overpotential as low as 120 mV, a low overpotential of 176 mV at the current density of 10 mA/cm(2) which is decreased 166 mV compared to that of the pristine MoO2 nanosheets, a low Tafel slope of 57 mV/decade, and a high turnover frequency of 0.13 H-2/s per active site at 150 mV. This finding proposes an effective strategy to prepare nonprecious metal oxide catalyst for enhancing HER performance by rationally doping hetero atoms.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available