Improving Electrochemical Performance of Cellulose Fiber-based Supercapacitor Electrode Using Polypyrrole-wrapped Iron Oxyhydroxide

Youngchu Kang; Hailan Jin; Xianhui An; Xueren Qian

首页> 中文期刊> 《造纸与生物质材料：英文版》 >Improving Electrochemical Performance of Cellulose Fiber-based Supercapacitor Electrode Using Polypyrrole-wrapped Iron Oxyhydroxide

Improving Electrochemical Performance of Cellulose Fiber-based Supercapacitor Electrode Using Polypyrrole-wrapped Iron Oxyhydroxide

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Polypyrrole(PPy)@cellulose fiber-based composites have been widely investigated as electrode materials for use in flexible supercapacitors.However,they cannot readily provide high specific capacitance and cyclic stability owing to their inherent drawbacks,such as high resistance,Weber impedance,and volume expansion or collapse during charging/discharging.In this study,iron oxyhydroxide(FeOOH)is incorporated in the abovementioned composite to decrease the equivalent series resistance,charge transfer resistance,and Weber impedance,thereby enhancing electron transfer and ion diffusion,which results in superior electrochemical performance.The PPy-wrapped FeOOH@cellulose fiber-based composite electrode with the molar ratio of FeSO_(4) to NaBH4 of 1∶1 exhibits a high specific capacitance of 513.8 F/g at a current density of 0.2 A/g,as well as an excellent capacitance retention of 89.4% after 1000 cycles.

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《造纸与生物质材料：英文版》 |2021年第3期|P.10-19|共10页
作者
Youngchu Kang; Hailan Jin; Xianhui An; Xueren Qian;
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作者单位

Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University)Ministry of Education Harbin Heilongjiang Province 150040 China;

Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University)Ministry of Education Harbin Heilongjiang Province 150040 China;

Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University)Ministry of Education Harbin Heilongjiang Province 150040 China;

Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University)Ministry of Education Harbin Heilongjiang Province 150040 China;

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原文格式 PDF
正文语种 chi
中图分类工程材料学;
关键词
cellulose fibers; iron oxyhydroxide; polypyrrole; electrode material; electrochemical performance;

Improving Electrochemical Performance of Cellulose Fiber-based Supercapacitor Electrode Using Polypyrrole-wrapped Iron Oxyhydroxide

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