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Effects of Silica Sol and Thermal Complex Activation on Properties of Electrodes for All Vanadium Redox Flow Battery
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Na CHEN, Huan ZHANG, Xudong LUO
Journal of the Chinese Ceramic Society | 2020, 48(9) : 1414 - 1423
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Journal of the Chinese Ceramic Society | 2020, 48(9): 1414-1423
Effects of Silica Sol and Thermal Complex Activation on Properties of Electrodes for All Vanadium Redox Flow Battery
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Na CHEN, Huan ZHANG, Xudong LUO
Affiliations
  • School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China

    • CHEN Na (1994-), female, Master candidate. E-mail:

About Author:

CHEN Na (1994-), female, Master candidate. E-mail:

Published: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20190774
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Graphite felt (GF) was modified with a silica sol via thermal treatment to improve its hydrophilicity and electrochemical activity. The surface morphology, microstructure, and electrochemical performance of the modified samples were investigated. The results show that GF electrodes after modification have a better hydrophilicity, a greater specific surface area and more oxygen functional groups. The amount of C—O on the GF surface as the catalytic active sites for vanadium redox couples is 4.18% when the amount of silica sol is 50% (mass fraction). The VRFB based on GF modified with 50% silica sol by thermal treatment has coulombic efficiency of 95.58%, voltage efficiency of 86.07% and energy efficiency, of 92.35% at a current density of 40 mA/cm2, which is increased by 10.93%, 9.16% and 3.22%, respectively, compared to the VRFB based on unmodified GF.

all vanadium redox flow battery  /  graphite felt  /  silica gel  /  complex activation  /  cell performance
陈娜, 张欢, 罗旭东. 硅溶胶/热空气复合活化对钒电池电极材料性能的影响. 硅酸盐学报, 2020 , 48 (9) : 1414 -1423 . DOI: 10.14062/j.issn.0454-5648.20190774
Na CHEN, Huan ZHANG, Xudong LUO. Effects of Silica Sol and Thermal Complex Activation on Properties of Electrodes for All Vanadium Redox Flow Battery[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (9) : 1414 -1423 . DOI: 10.14062/j.issn.0454-5648.20190774
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Year 2020 volume 48 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20190774
  • Receive Date：2019-11-29
  • Online Date：2026-10-29
  • Published：2020-09-20
Article Data
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  • Received：2019-11-29
  • Revised：2020-01-13
Funding
Affiliations
    School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China

Corresponding:

ZHANG Huan (1981-), Female, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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