机械工程材料, 2017, 41(1): 34-42.
10.11973/jxgccl201701007
基于植物模板法制备高性能石墨烯/氧化锰复合材料及其电化学性能
何凤娟
1,
,
钱君超
2,
,
刘成宝
3,
,
陈志刚
4,
,
李萍
5,
1.苏州科技学院化学生物与材料工程学院,江苏省环境功能材料重点实验室,苏州 215009;
2.苏州科技学院化学生物与材料工程学院,江苏省环境功能材料重点实验室,苏州 215009;
3.苏州科技学院化学生物与材料工程学院,江苏省环境功能材料重点实验室,苏州 215009;
4.苏州科技学院化学生物与材料工程学院,江苏省环境功能材料重点实验室,苏州 215009;
5.苏州科技学院化学生物与材料工程学院,江苏省环境功能材料重点实验室,苏州 215009
以植物膜作为碳源和模板,通过浸渍氯化锰溶液并经两次煅烧合成了石墨烯/氧化锰复合材料,分析了该复合材料的微观形貌、物相组成以及表面性能;将该复合材料制成电极,通过循环伏安和恒流充放电方法测试了其电化学性能.结果表明:石墨烯/氧化锰复合材料中不存在氧化石墨烯,其石墨烯为褶皱状片层结构,厚度约1.449 nm,其上负载着大量粒径为10~40 nm的氧化锰颗粒;该复合材料的BET比表面积约为202.5 m2?g-1,孔径分布于5~30 nm;该复合材料的电化学反应可逆性优良,比电容为245 F?g-1,远高于市购碳粉(25~26 F?g-1)和植物膜煅烧制备石墨烯(45~50 F?g-1)的.
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