Effect of modification of polyacrylonitrile-based graphite felts on their performance in redox fuel cell and redox flow battery

被引：13
作者：
Zhang, Yue [1 ]
Qian, Guocai [1 ]
Huang, Chengde [1 ]
Wang, Yuxin [2 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Dept Appl Chem, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2016年 / 324卷
关键词：
Pretreatment; Redox flow battery; Direct methanol redox fuel cell; Nitrogen content; Oxygen functional groups; ELECTRON-TRANSFER KINETICS; RECENT PROGRESS; DOPED GRAPHENE; LIQUID;
D O I：
10.1016/j.jpowsour.2016.05.115
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The electrochemical behavior of nitrogen-doped polyacrylonitrile (PAN)-based graphite felt prepared by three pretreatment methods for the reaction of Fe3+/Fe2+ was investigated. Then the effects of three pretreatment, including doped nitrogen, heat treatment and acid treatment, on the 9,10-anthraquinone-2,7-disulphonic acid (AQDS) electrochemical reaction activity of the PAN-based graphite felt were investigated and compared. The crystal structure, the surface morphology, and surface chemical composition of the PAN-based graphite felt were characterized by X-ray diffraction, scanning electron microscopy and X-ray electron spectroscopy. The results of the electrochemical performance showed that the nitrogen content can influence the activity of PAN-based graphite felt in the reaction of Fe3+/Fe2+. Besides, the activity of PAN-based graphite felt in the AQDS electrochemical reaction was affected by the content of -COOH group on the surface of graphite felt. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：528 / 537
页数：10
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