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Designing high efficiency graphite felt electrode via HNO3 vapor activation towards stable vanadium redox flow battery

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成果类型:
期刊论文
作者:
Wu, Xuewen;Xie, Zhiyong;Zhou, Haikun;Xiong, Zi'ang;Yin, Xingrong;...
通讯作者:
Xie, ZY;Liao, JJ
作者机构:
[Xie, Zhiyong; Wu, Xuewen; Xiong, Zi'ang] Cent South Univ, State Key Lab Powder Met & Sci & Technol, High Strength Struct Mat Lab, 932 Lushan Rd, Changsha 410083, Peoples R China.
[Yin, Xingrong; Tang, Hongli; Wu, Xuewen] Hunan Prov Yinfeng New Energy Co Ltd, Changsha 410000, Peoples R China.
[Zhou, Haikun] Univ New South Wales, Sch Chem Engn, Sydney 2052, Australia.
[Ma, Qiang] Henan Univ Engn, Coll Mat Engn, Henan Int Joint Lab Rare Earth Composite Mat, Zhengzhou 451191, Henan, Peoples R China.
[Liao, Jingjing] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
通讯机构:
[Xie, ZY ] C
[Liao, JJ ] U
Cent South Univ, State Key Lab Powder Met & Sci & Technol, High Strength Struct Mat Lab, 932 Lushan Rd, Changsha 410083, Peoples R China.
Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
语种:
英文
关键词:
Vanadium redox flow battery;Nitric acid vapor;Treated graphite felt;Surface activation;Precisely -controllable
期刊:
Electrochimica Acta
ISSN:
0013-4686
年:
2023
卷:
440
页码:
141728
基金类别:
CRediT authorship contribution statement Xuewen Wu: Conceptualization, Methodology, Validation, Formal analysis, Investigation, Resources, Data curation, Writing – original draft, Project administration. Zhiyong Xie: Resources, Writing – review & editing, Supervision, Project administration. Haikun Zhou: Validation, Writing – original draft, Writing – review & editing. Zi'ang Xiong: Writing – review & editing, acquisition. Xingrong Yin: Validation. Hongli Tang: Validation, Writing – original draft, Writing – review & editing.
机构署名:
本校为通讯机构
院系归属:
核科学技术学院
摘要:
A new method of preparing nitric acid vapor treated graphite felt for vanadium redox flow battery (VRFB) is developed. This method outperforms traditional impregnation methods in convenience, efficacy and controllability of fabrication process. A sequence reaction mechanism is proposed for nitric acid vapor treated graphite felt reactions occurring at 200 °C. The modified-graphite felt (m-GF) with excellent electrocatalytic redox reversibility toward VO2+/VO2+ and V2+/V3+ redox couples is prepared in the conditions of VHNO3/mpGF=0.45 mL g−1 a...

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