Nitrogen-doped mesoporous carbon for energy storage in vanadium redox flow batteries

Yuyan Shao; Xiqing Wang; Mark Engelhard; Chongmin Wang; Sheng Dai; Jun Liu; Zhenguo Yang; Yuehe Lin

doi:10.1016/j.jpowsour.2010.01.015

Nitrogen-doped mesoporous carbon for energy storage in vanadium redox flow batteries

Yuyan Shao, Xiqing Wang, Mark Engelhard, Chongmin Wang, Sheng Dai, Jun Liu, Zhenguo Yang, Yuehe Lin

Chemical Sciences Division

Research output: Contribution to journal › Article › peer-review

319 Scopus citations

Abstract

We demonstrate an excellent performance of nitrogen-doped mesoporous carbon (N-MPC) for energy storage in vanadium redox flow batteries. Mesoporous carbon (MPC) is prepared using a soft-template method and doped with nitrogen by heat-treating MPC in NH₃. N-MPC is characterized with X-ray photoelectron spectroscopy and transmission electron microscopy. The redox reaction of [VO]²⁺/[VO₂]⁺ is characterized with cyclic voltammetry and electrochemical impedance spectroscopy. The electrocatalytic kinetics of the redox couple [VO]²⁺/[VO₂]⁺ is significantly enhanced on N-MPC electrode compared with MPC and graphite electrodes. The reversibility of the redox couple [VO]²⁺/[VO₂]⁺ is greatly improved on N-MPC (0.61 for N-MPC vs. 0.34 for graphite), which is expected to increase the energy storage efficiency of redox flow batteries. Nitrogen doping facilitates the electron transfer on electrode/electrolyte interface for both oxidation and reduction processes. N-MPC is a promising material for redox flow batteries. This also opens up new and wider applications of nitrogen-doped carbon.

Original language	English
Pages (from-to)	4375-4379
Number of pages	5
Journal	Journal of Power Sources
Volume	195
Issue number	13
DOIs	https://doi.org/10.1016/j.jpowsour.2010.01.015
State	Published - Jul 1 2010

Funding

This work is partially supported by a Laboratory Directed Research and Development program at Pacific Northwest National Laboratory (PNNL). Part of the research described in this paper was performed at the Environmental Molecular Sciences Laboratory, a national scientific-user facility sponsored by the U.S. Department of Energy's (DOE's) Office of Biological and Environmental Research and located at PNNL. PNNL is operated for U.S. DOE by Battelle under Contract DE-AC05-76RL01830. J. Liu and Z. G. Yang acknowledge the support from Office of Electricity Delivery&Energy Reliability's Storage Program.

Funders	Funder number
U.S. Department of Energy
Battelle	DE-AC05-76RL01830
Biological and Environmental Research
Laboratory Directed Research and Development
Pacific Northwest National Laboratory

Keywords

Electron transfer
Energy efficiency
Nitrogen-doped mesoporous carbon
Renewable energy storage
Reversibility
Vanadium redox flow battery

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2010.01.015

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title = "Nitrogen-doped mesoporous carbon for energy storage in vanadium redox flow batteries",

abstract = "We demonstrate an excellent performance of nitrogen-doped mesoporous carbon (N-MPC) for energy storage in vanadium redox flow batteries. Mesoporous carbon (MPC) is prepared using a soft-template method and doped with nitrogen by heat-treating MPC in NH3. N-MPC is characterized with X-ray photoelectron spectroscopy and transmission electron microscopy. The redox reaction of [VO]2+/[VO2]+ is characterized with cyclic voltammetry and electrochemical impedance spectroscopy. The electrocatalytic kinetics of the redox couple [VO]2+/[VO2]+ is significantly enhanced on N-MPC electrode compared with MPC and graphite electrodes. The reversibility of the redox couple [VO]2+/[VO2]+ is greatly improved on N-MPC (0.61 for N-MPC vs. 0.34 for graphite), which is expected to increase the energy storage efficiency of redox flow batteries. Nitrogen doping facilitates the electron transfer on electrode/electrolyte interface for both oxidation and reduction processes. N-MPC is a promising material for redox flow batteries. This also opens up new and wider applications of nitrogen-doped carbon.",

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AU - Dai, Sheng

AU - Liu, Jun

AU - Yang, Zhenguo

AU - Lin, Yuehe

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N2 - We demonstrate an excellent performance of nitrogen-doped mesoporous carbon (N-MPC) for energy storage in vanadium redox flow batteries. Mesoporous carbon (MPC) is prepared using a soft-template method and doped with nitrogen by heat-treating MPC in NH3. N-MPC is characterized with X-ray photoelectron spectroscopy and transmission electron microscopy. The redox reaction of [VO]2+/[VO2]+ is characterized with cyclic voltammetry and electrochemical impedance spectroscopy. The electrocatalytic kinetics of the redox couple [VO]2+/[VO2]+ is significantly enhanced on N-MPC electrode compared with MPC and graphite electrodes. The reversibility of the redox couple [VO]2+/[VO2]+ is greatly improved on N-MPC (0.61 for N-MPC vs. 0.34 for graphite), which is expected to increase the energy storage efficiency of redox flow batteries. Nitrogen doping facilitates the electron transfer on electrode/electrolyte interface for both oxidation and reduction processes. N-MPC is a promising material for redox flow batteries. This also opens up new and wider applications of nitrogen-doped carbon.

AB - We demonstrate an excellent performance of nitrogen-doped mesoporous carbon (N-MPC) for energy storage in vanadium redox flow batteries. Mesoporous carbon (MPC) is prepared using a soft-template method and doped with nitrogen by heat-treating MPC in NH3. N-MPC is characterized with X-ray photoelectron spectroscopy and transmission electron microscopy. The redox reaction of [VO]2+/[VO2]+ is characterized with cyclic voltammetry and electrochemical impedance spectroscopy. The electrocatalytic kinetics of the redox couple [VO]2+/[VO2]+ is significantly enhanced on N-MPC electrode compared with MPC and graphite electrodes. The reversibility of the redox couple [VO]2+/[VO2]+ is greatly improved on N-MPC (0.61 for N-MPC vs. 0.34 for graphite), which is expected to increase the energy storage efficiency of redox flow batteries. Nitrogen doping facilitates the electron transfer on electrode/electrolyte interface for both oxidation and reduction processes. N-MPC is a promising material for redox flow batteries. This also opens up new and wider applications of nitrogen-doped carbon.

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KW - Energy efficiency

KW - Nitrogen-doped mesoporous carbon

KW - Renewable energy storage

KW - Reversibility

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ER -

Nitrogen-doped mesoporous carbon for energy storage in vanadium redox flow batteries

Abstract

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Keywords

UN SDGs

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