Treatment of graphite felt by modified Hummers method for the positive electrode of vanadium redox flow battery
作者： Xiaoxin Wu , Hongfeng Xu , Yang Shen , Pengcheng Xu , Lu Lu
DOI: 10.1016/J.ELECTACTA.2014.06.124
关键词:
摘要: Abstract A novel and highly effective treatment based on modified Hummers method was firstly used to improve the electrochemical activity of graphite felt as positive electrode in all-vanadium redox flow battery (VRFB). The treated by characterized Fourier transform infrared spectroscopy scanning electron microscopy. performance prepared evaluated through cyclic voltammetry impedance spectroscopy. Results show that exhibits excellent electrocatalytic reaction rate vanadium couples. In our research, hydrogen H 2 replaced V 2+ /V 3+ couple negative side VRFB test. coulombic, voltage, energy efficiencies with as-prepared electrodes at 50 mA cm −2 are 95.0%, 81.3%, 77.2%, respectively. These values much higher than those cell-assembled were conventionally thermally treated. carries more hydrophilic groups, such as–OH, its defects, which is advantageous facilitating ions, thereby improving operation efficiency battery.
sci-hub.se 参考文章(37)
Maria Skyllas-Kazacos, Robert Robins, Miron Rychick, All-vanadium redox battery ,(1988)
Faizur Rahman, Maria Skyllas-Kazacos, Vanadium redox battery: Positive half-cell electrolyte studies Journal of Power Sources. ,vol. 189, pp. 1212- 1219 ,(2009) , 10.1016/J.JPOWSOUR.2008.12.113
Zhenguo Yang, Jianlu Zhang, Michael C. W. Kintner-Meyer, Xiaochuan Lu, Daiwon Choi, John P. Lemmon, Jun Liu, Electrochemical Energy Storage for Green Grid Chemical Reviews. ,vol. 111, pp. 3577- 3613 ,(2011) , 10.1021/CR100290V
Wenyue Li, Jianguo Liu, Chuanwei Yan, None, Multi-walled carbon nanotubes used as an electrode reaction catalyst for VO(2)(+)/VO(2+) for a vanadium redox flow battery Carbon. ,vol. 49, pp. 3463- 3470 ,(2011) , 10.1016/J.CARBON.2011.04.045
Ludwig Joerissen, Juergen Garche, Ch. Fabjan, G. Tomazic, Possible use of vanadium redox-flow batteries for energy storage in small grids and stand-alone photovoltaic systems Journal of Power Sources. ,vol. 127, pp. 98- 104 ,(2004) , 10.1016/J.JPOWSOUR.2003.09.066
Xiao-gang LI, Ke-long HUANG, Su-qin LIU, Ning TAN, Li-quan CHEN, Characteristics of graphite felt electrode electrochemically oxidized for vanadium redox battery application Transactions of Nonferrous Metals Society of China. ,vol. 17, pp. 195- 199 ,(2007) , 10.1016/S1003-6326(07)60071-5
Hiroko Kaneko, Ken Nozaki, Yutaka Wada, Takamichi Aoki, Akira Negishi, Masayuki Kamimoto, Vanadium redox reactions and carbon electrodes for vanadium redox flow battery Electrochimica Acta. ,vol. 36, pp. 1191- 1196 ,(1991) , 10.1016/0013-4686(91)85108-J
Tao Wu, Kelong Huang, Suqin Liu, Shuxin Zhuang, Dong Fang, Sha Li, Dan Lu, Anqun Su, Hydrothermal ammoniated treatment of PAN-graphite felt for vanadium redox flow battery Journal of Solid State Electrochemistry. ,vol. 16, pp. 579- 585 ,(2012) , 10.1007/S10008-011-1383-Y
Pengxian Han, Yanhua Yue, Zhihong Liu, Wei Xu, Lixue Zhang, Hongxia Xu, Shanmu Dong, Guanglei Cui, Graphene oxide nanosheets/multi-walled carbon nanotubes hybrid as an excellent electrocatalytic material towards VO2+/VO2+ redox couples for vanadium redox flow batteries Energy and Environmental Science. ,vol. 4, pp. 4710- 4717 ,(2011) , 10.1039/C1EE01776D
Yuyan Shao, Xiqing Wang, Mark Engelhard, Chongmin Wang, Sheng Dai, Jun Liu, Zhenguo Yang, Yuehe Lin, Nitrogen-doped mesoporous carbon for energy storage in vanadium redox flow batteries Journal of Power Sources. ,vol. 195, pp. 4375- 4379 ,(2010) , 10.1016/J.JPOWSOUR.2010.01.015