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摘要
将一维纳米纤维素纤维(NCFs)作为MoS2的有效分散剂,通过超临界二氧化碳干燥和高温碳化过程制备碳纳米球纤维(CNPFs)/MoS2纳米杂化气凝胶电极材料。利用SEM、EDS、FT-IR和电化学测试等手段对杂化电极材料的组成、结构和电化学性能进行表征。结果表明,一定量的NCFs是MoS2的稳定分散剂,可以有效阻碍MoS2纳米片层的团聚。所制备的CNPFs/MoS2杂化气凝胶电极材料在0.5 A/g电流密度下的质量比电容高达366.84 F/g,而且具有优异的循环稳定性。
Abstract
Carbon nanosphere fibers (CNPFs)/MoS2 nanohybrid aerogel electrode materials are prepared by supercritical carbon dioxide drying-high temperature carbonization process,using one-dimensional nanocellulose fibers (NCFs) as an effective dispersant for MoS2.The composition,structure and electrochemical performance of the hybrid electrode materials are characterized via SEM,EDS,FT-IR and electrochemical measurements.It is shown that a certain amount of NCFs is a stable dispersant for MoS2,which can effectively prevent MoS2 nanosheets from agglomeration.Mass specific capacitance of the prepared CNPFs/MoS2 hybrid aerogel electrode material reaches as high as 366.84 F·g-1 at a current density of 0.5 A·g-1.In addition,it has excellent cycle stability.
关键词
纳米纤维素纤维
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电极材料
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气凝胶
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二硫化钼
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碳纳米球纤维
Key words
nanocellulose fibers
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electrode materials
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aerogel
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MoS2
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carbon nanosphere fibers
碳纳米球纤维基电极材料的制备及性能研究[J].
现代化工, 2021, 41(5): 137-142 DOI:10.16606/j.cnki.issn0253-4320.2021.05.028