电化学（中英文）2023，Vol.29Issue(12)：1-11,11.DOI:10.13208/j.electrochem.2203231
氮掺杂石墨毡对水系醌基氧化还原液流电池性能的影响
Nitrogen-Doped Graphite Felt on the Performance of Aqueous Quinone-Based Redox Flow Batteries
摘要
Abstract
Modification of electrode is vitally important for achieving high energy efficiency in aqueous quinone-based redox flow batteries(AQRFBs).The modification of graphite felt(GF)was carried out by means of urea hydrothermal reaction,and simultaneously,the effects of hydrothermal reaction time on the functional groups and surface structure of nitrogen-doped graphite felt were studied.The surface morphology and defect,element content and surface chemical state of the modified electrode were characterized by scanning electron microscopy(SEM),Brunauer-Emmett-Teller(BET)test,Raman spectroscopy,and X-ray photoelectron spectroscopy(XPS).The electrochemical performance of the modified electrodes was evaluated by cyclic voltammetry,electrochemical impedance spectroscopy and single cell test.These results indicate that the specific surface area,hydrophilicity and conductivity of GF have been improved by nitrogen doping.The nitrogen-doped graphite felt(NGF)demonstrates an outstanding electrochemical catalytic activity and less charge transfer resistance.With the NGF,the battery exhibited 8.0％ increase in the energy efficiency of aqueous quinone redox flow batteries at 100 mA·cm-2.关键词
氮掺杂石墨毡/能量效率/水系醌基氧化还原液流电池/电荷转移电阻/亲水性Key words
Nitrogen-doped graphite felt/Energy efficiency/Aqueous quinone-based redox flow batteries/Charge transfer resistance/Hydrophilic引用本文复制引用
张衡,夏力行,姜珊,王福芝,谭占鳌..氮掺杂石墨毡对水系醌基氧化还原液流电池性能的影响[J].电化学（中英文）,2023,29(12):1-11,11.基金项目
国家自然科学基金项目(No.51873007)资助 （No.51873007）
