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磷酸法活性炭作为离子液体超级电容器电极材料的研究

张秋红 左宋林 卫歆雨 王永芳

张秋红, 左宋林, 卫歆雨, 王永芳. 磷酸法活性炭作为离子液体超级电容器电极材料的研究[J]. 新型炭材料, 2018, 33(1): 61-70.
引用本文: 张秋红, 左宋林, 卫歆雨, 王永芳. 磷酸法活性炭作为离子液体超级电容器电极材料的研究[J]. 新型炭材料, 2018, 33(1): 61-70.
ZHANG Qiu-hong, ZUO Song-lin, WEI Xin-yu, WANG Yong-fang. H3PO4 activated carbons as the electrode materials of supercapacitors using an ionic liquid electrolyte[J]. NEW CARBON MATERIALS, 2018, 33(1): 61-70.
Citation: ZHANG Qiu-hong, ZUO Song-lin, WEI Xin-yu, WANG Yong-fang. H3PO4 activated carbons as the electrode materials of supercapacitors using an ionic liquid electrolyte[J]. NEW CARBON MATERIALS, 2018, 33(1): 61-70.

磷酸法活性炭作为离子液体超级电容器电极材料的研究

基金项目: 林业公益性行业科研专项(201404611);教育部博士点博导基金(20133204110007).
详细信息
    作者简介:

    张秋红,硕士研究生.E-mail:qhzhang1234@163.com

    通讯作者:

    左宋林,博士,教授.E-mail:zslnl@njfu.com.cn

  • 中图分类号: TQ127.1+1

H3PO4 activated carbons as the electrode materials of supercapacitors using an ionic liquid electrolyte

Funds: Special Fund for Forest Scientific Research in the Public Welfare(201404611);Doctoral Supervisor Foundation from Ministry of Education Doctor Station(20133204110007).
  • 摘要: 为了研究工业化上广泛应用的磷酸活化法所制备的活性炭在离子液体基超级电容器领域的应用潜力,本文采用磷酸作为活化剂,杉木屑作为原料,制备活性炭电极材料。采用N2吸附/脱附等温线、扫描电子显微镜、X射线光电子能谱等方法表征了活性炭的孔隙结构与形态。采用[BMIM][PF6]离子液体作为电解质,通过循环伏安法、恒电流充/放电和交流阻抗等方法研究了磷酸活性炭作为超级电容器电极材料的电化学性能。结果显示,在800~950℃温度下,通过调节浸渍比,磷酸活化法可以制备出中孔孔容比例达66%以上的中孔活性炭;在浸渍比为3:1的条件下,所制得的活性炭电极的比电容量可达162 F/g,组装成对称电容器的能量密度可达22.5 Wh/kg (在0.5 A/g下);且具有较好的倍率特性和循环稳定性,在5 A/g的电流密度下充/放电5 000次后容量保持率为86%。因此,高温磷酸活化法是一种制备离子液体电解质超级电容器活性炭的方法。
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出版历程
  • 收稿日期:  2017-06-25
  • 录用日期:  2018-02-11
  • 修回日期:  2017-10-15
  • 刊出日期:  2018-02-28

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