%0 Journal Article
%T Electrochemical Modification of Graphite Felt Electrode for Vanadium Redox Flow Battery<br>钒液流电池用石墨毡电极的电化学修饰
%A HUANG Ke-Long
%A TAN Ning
%A LIU Su-Qin
%A CHEN Li-Quan
%A <br>李晓刚
%A 黄可龙
%A 谭宁
%A 刘素琴 陈立泉
%J 无机材料学报
%D 2006
%I Science Press
%X Electrochemical oxidation of graphite felt was investigated so as to enhance the electrochemical performance of this material for using in vanadium redox cell. Electrochemical activity of the graphite felt in vanadium electrolyte increases with its extent of oxidation. Cell voltage efficiency of over 90% and current efficiency of over 92% are obtained after treatment. Both XPS and FT-IR analysis demonstrates that surface functional groups of COOH increase mainly compared with untreated samples. SEM shows the surfaces are eroded. BET/N2 measurements show the surface area increases. The improvement of electrochemical activity for the electrode is ascribed to the increase of the number of COOH group and the special surface.
%K XPS<br>钒电池
%K 石墨毡
%K 电化学氧化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=68FD59BDAD15E0CF&yid=37904DC365DD7266&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=5348E91DA94080DE&eid=9C76A7541E963918&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=3&reference_num=13