Journal article
Three-dimensional Nitrogen-Doped Reduced Graphene Oxide/Carbon Nanotube Composite Catalysts for Vanadium Flow Batteries
Electroanalysis (New York, N.Y.), Vol.29(5), pp.1469-1473
05/2017
Abstract
The development of vanadium redox flow battery is limited by the sluggish kinetics of the reaction, especially the cathodic VO2+/VO2+ redox couples. Therefore, it is vital to develop new electrocatalysts with enhanced activity to improve the battery performance. Herein, we synthesized the hydrogel precursor by a facile hydrothermal method. After the following carbonization, nitrogen-doped reduced graphene oxide/carbon nanotube composite was obtained. By virtue of the large surface area and good conductivity, which are ensured by the unique hybrid structure, as well as the proper nitrogen doping, the as-prepared composite presents enhanced catalytic performance toward the VO2+/VO2+ redox reaction. We also demonstrated the composite with carbon nanotube loading of 2 mg/mL exhibits the highest activity and remarkable stability in aqueous solution due to the strong synergy between reduced graphene oxide and carbon nanotubes, indicating that this composite might show promising applications in vanadium redox flow battery.
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Details
- Title
- Three-dimensional Nitrogen-Doped Reduced Graphene Oxide/Carbon Nanotube Composite Catalysts for Vanadium Flow Batteries
- Creators
- Shaofang Fu - Washington State UniversityChengzhou Zhu - Washington State UniversityJunhua Song - Washington State UniversityMark H. Engelhard - Pacific Northwest National LaboratoryDan Du - Washington State UniversityYuehe Lin - Washington State University
- Publication Details
- Electroanalysis (New York, N.Y.), Vol.29(5), pp.1469-1473
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Wiley
- Number of pages
- 5
- Grant note
- Department of Energy's Office of Biological and Environmental Research; United States Department of Energy (DOE) DE5AC05576RL0183 / DOE; United States Department of Energy (DOE) start-up fund of Washington State University, USA
- Identifiers
- 99901227645301842
- Language
- English
- Resource Type
- Journal article