Amorphous carbon nanotube/MnO2/graphene oxide ternary composite electrodes for electrochemical capacitors.
Amorphous carbon nanotube/MnO2/graphene oxide ternary composite electrodes for electrochemical capacitors.
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DOI：
10.1166/jnn.2013.6980
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发表时间：
2013-03
影响因子：
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通讯作者：
Changbin Im;Y. S. Yun;Bona Kim;Hyun Ho Park;H. Jin
中科院分区：
文献类型：
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作者：
Changbin Im;Y. S. Yun;Bona Kim;Hyun Ho Park;H. Jin
以高锰酸钾和a-CNT之间容易的直接氧化还原反应合成了非晶碳纳米管/MnO2/氧化石墨烯（a-CNT/MnO2/GO）三元复合材料，该复合材料采用阳极氧化铝模板法与GO共过滤制备。将针状、100 nm 厚的 MnO2 晶体均匀涂覆在 a-CNT 表面，然后用 GO 覆盖。所得MnO2涂覆的α-CNT的电化学性能在5 mV/s的扫描速率下表现出473 F/g的比电容，并且在500次循环后表现出优异的充/放电稳定性。
Ternary composites of amorphous carbon nanotube/MnO2/graphene oxide (a-CNT/MnO2/GO) were synthesized by a facile direct redox reaction between potassium permanganate and a-CNT, which was prepared by anodic aluminum oxide template method following co-filtration with GO. Needle-like, 100-nm-thick, MnO2 crystals were homogeneously coated on the a-CNT surface, which was then covered with GO. The electrochemical performance of the resulting MnO2-coated a-CNTs exhibited a specific capacitance of 473 F/g at a scan rate of 5 mV/s, and excellent charge/discharge stability after 500 cycles.