V₂O₅ nanobelt-carbonized bacterial cellulose composite with enhanced electrochemical performance for aqueous supercapacitors

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• 作者：Jing Mei ; Yongjun Ma ; Chonghua Pei
• 关键词：V2O5 nanobelts ; CBC ; Hydrothermal process ; Supercapacitor
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：21
• 期：2
• 页码：573-580
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Physical Chemistry; Electrochemistry; Energy Storage; Characterization and Evaluation of Materials; Analytical Chemistry; Condensed Matter Physics;
• 出版者：Springer Berlin Heidelberg
• ISSN：1433-0768
• 卷排序：21

文摘

V₂O₅ nanobelt-carbonized bacterial cellulose (V₂O₅-CBC) nanocomposite was synthesized via a hydrothermal process in a single step. The prepared samples were characterized by XRD, SEM, and TEM. The results show that the CBC uniform covered on the surface of the V₂O₅ nanobelts. The specific capacitance of V₂O₅-CBC nanocomposite was investigated using cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD). The results indicated that this material exhibited the capacitance of 281 F g−1 at 0.25 A g−1 and 268 F g−1 at 5 mV s−1. Moreover, the capacity can retain 87 % even after 2000 cycles.