Article(id=1322636213199159834, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636193100050547, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190774, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1574956800000, receivedDateStr=2019-11-29, revisedDate=1578844800000, revisedDateStr=2020-01-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1793270646618, onlineDateStr=2026-10-29, pubDate=1600531200000, pubDateStr=2020-09-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793270646618, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793270646618, creator=13701087609, updateTime=1793270646618, updator=13701087609, issue=Issue{id=1322636193100050547, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='9', pageStart='1353', pageEnd='1510', issueExtLink='null', onlineDate='null', pubDate='1594569600000', pubDateStr='2020-07-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793270641826, creator='13701087609', updateTime=1793270641826, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1414, endPage=1423, ext={EN=ArticleExt(id=1322636213354349083, articleId=1322636213199159834, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effects of Silica Sol and Thermal Complex Activation on Properties of Electrodes for All Vanadium Redox Flow Battery, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

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.

, authors=Na CHEN, Huan ZHANG, Xudong LUO, authorsList=Na CHEN, Huan ZHANG, Xudong LUO, authorCompany=null, correspAuthors=Huan ZHANG, authorNote=

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

, correspAuthorsNote=
ZHANG Huan (1981-), Female, Ph.D., Associate Professor. E-mail:
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利用硅溶胶/热空气复合活化法改性石墨毡,并对其表面形貌、微观结构以及电化学性能进行了分析研究。结果表明:硅溶胶/热空气复合活化使石墨毡电极的亲液性增强、比表面积增大、氧官能团数量提升,由此组装的钒电池电化学性能显著提高;活化后石墨毡表面的C—O氧官能团是钒电池氧化还原反应的有效活性位点,当硅溶胶添加量为50%(质量分数)时,石墨毡表面的C—O氧官能团数量达到4.18%;当电流密度为40 mA/cm2时,以硅溶胶添加量50%的石墨毡为电极组装钒电池,其库仑效率达到95.58%,能量效率达到86.07%,电压效率达到92.35%,比未活化石墨毡为电极组装的钒电池分别高出10.93%、9.16%、3.22%。

, authors=陈娜, 张欢, 罗旭东, authorsList=陈娜, 张欢, 罗旭东, authorCompany=null, correspAuthors=张欢, authorNote=

陈娜(1994—),女,硕士研究生。

, correspAuthorsNote=
张欢(1981—),女,博士,副教授。
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CHEN Na (1994-), female, Master candidate. E-mail:

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陈娜(1994—),女,硕士研究生。

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陈娜(1994—),女,硕士研究生。

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硅溶胶/热空气复合活化对钒电池电极材料性能的影响
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陈娜 , 张欢 , 罗旭东
硅酸盐学报 | 2020,48(9): 1414-1423
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硅酸盐学报 | 2020 , 48 (9) : 1414 -1423
硅溶胶/热空气复合活化对钒电池电极材料性能的影响
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陈娜 , 张欢 , 罗旭东
作者信息
  • 辽宁科技大学材料与冶金学院,辽宁 鞍山 114051
通讯作者:
张欢(1981—),女,博士,副教授。
作者简介:

陈娜(1994—),女,硕士研究生。

Effects of Silica Sol and Thermal Complex Activation on Properties of Electrodes for All Vanadium Redox Flow Battery
Na CHEN , Huan ZHANG , Xudong LUO
Affiliations
  • School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
  • Corresponding Author:
    ZHANG Huan (1981-), Female, Ph.D., Associate Professor. E-mail:

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

出版时间: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20190774
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利用硅溶胶/热空气复合活化法改性石墨毡,并对其表面形貌、微观结构以及电化学性能进行了分析研究。结果表明:硅溶胶/热空气复合活化使石墨毡电极的亲液性增强、比表面积增大、氧官能团数量提升,由此组装的钒电池电化学性能显著提高;活化后石墨毡表面的C—O氧官能团是钒电池氧化还原反应的有效活性位点,当硅溶胶添加量为50%(质量分数)时,石墨毡表面的C—O氧官能团数量达到4.18%;当电流密度为40 mA/cm2时,以硅溶胶添加量50%的石墨毡为电极组装钒电池,其库仑效率达到95.58%,能量效率达到86.07%,电压效率达到92.35%,比未活化石墨毡为电极组装的钒电池分别高出10.93%、9.16%、3.22%。

钒电池  /  石墨毡  /  硅溶胶  /  复合活化  /  电池性能

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
  • 国家自然科学基金(51702144)
  • 辽宁科技大学优秀人才培养项目(2019RC04)
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doi: 10.14062/j.issn.0454-5648.20190774
  • 接收时间:2019-11-29
  • 首发时间:2026-10-29
  • 出版时间:2020-09-20
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  • 收稿日期:2019-11-29
  • 修回日期:2020-01-13
基金
国家自然科学基金(51702144)
辽宁科技大学优秀人才培养项目(2019RC04)
作者信息
    辽宁科技大学材料与冶金学院,辽宁 鞍山 114051

通讯作者:

张欢(1981—),女,博士,副教授。
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2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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