Sulfur redox reactions on nanostructured highly oriented pyrolytic graphite (HOPG) electrodes: Direct evidence for superior electrocatalytic performance on defect sites
- Univ. of Wisconsin, Milwaukee, WI (United States). Dept. of Mechanical Engineering. College of Engineering and Applied Science
- Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.
Fundamental research of sulfur redox reactions on well-defined controlled model electrode surfaces can provide new information to design high-performance lithium-sulfur batteries. In this paper, we study the electrochemical reduction and oxidation of sulfur on the nanostructured HOPG electrodes with pure basal planes, step plans, and pure edge planes. Finally, our results directly indicate that electrochemical reduction and oxidation of sulfur is significantly affected by the carbon surface structure, namely, the electrochemical reversibility of sulfur redox reaction is much better on edge plane, compared with basal plane and step plane.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Wisconsin, Milwaukee, WI (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1439794
- Alternate ID(s):
- OSTI ID: 1396921
- Report Number(s):
- BNL-113879-2017-JAAM
- Journal Information:
- Carbon, Vol. 119; ISSN 0008-6223
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 2 works
Citation information provided by
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Web of Science
The Progress of Li-S Batteries-Understanding of the Sulfur Redox Mechanism: Dissolved Polysulfide Ions in the Electrolytes
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journal | June 2018 |
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