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Twist fibrous structure of CS-SnO2-PANI ternary hybrid composite for electrochemical capacitance performance

机译:电化学电容性能CS-SNO2-PANI三元混合化合物的扭曲纤维结构

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摘要

In this study, a twisted fibrous CS-SnO2-PANI ternary hybrid composite structure was synthesized via a two step method; the CS-SnO2 hybrid composite was prepared by a simple chemical precipitation method and the resulting CS-SnO2 suspension was coated with PANI by in situ chemical oxidative polymerization of aniline monomer in acidic medium using ammonium persulphate as the oxidant. The resulting respective materials of chitosan, SnO2 and PANI were characterized by using Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, X-ray diffraction analysis (XRD) and high resolution scanning electron microscopy (HR-SEM) with energy dispersive X-ray analysis (EDAX), field emission gun-transmission electron microscope (FEG-TEM), thermo-gravimetric (TG) analysis and Brunauer-Emmett-Teller (BET) analysis. The electrochemical capacitors performances were characterized by cyclic voltammetry (CV) and impedance spectroscopy. The electrochemical results demonstrated that the CS-SnO2-PANI ternary hybrid composite achieved 179.20 F g(-1) capacitance values in 1 M H2SO4 solution at a 10 mV s(-1) potential sweep rate with a maximum of energy density of 8.96 (W h kg(-1)) and power density of 32.25 (kW kg(-1)). A synergistic effect among the three components of the chitosan based ternary hybrid composite can be a promising modified electrode material for capacitor applications.
机译:在该研究中,通过两步法合成了一种扭曲的纤维Cs-SnO2-胰蛋白三元杂化结构;通过简单的化学沉淀法制备Cs-SnO2杂化复合物,并通过在酸性培养基中原位化学氧化聚合使用铵脱脂作为氧化剂,通过苯胺单体的苯胺单体的化学氧化聚合涂覆所得的Cs-SnO 2悬浮液。通过使用傅里叶变换红外(FTIR)光谱,拉曼光谱,X射线衍射分析(XRD)和高分辨率扫描电子显微镜(HR-SEM),其特征在于壳聚糖,SnO2和Pani的各自的壳聚糖,SnO2和Pani的各自的材料分析(edax),场发射枪传输电子显微镜(FEG-TEM),热量重量(TG)分析和Brunauer-Emmett-Teller(BET)分析。电化学电容器的性能以循环伏安法(CV)和阻抗光谱为特征。电化学结果表明,在10 mV S(-1)电位扫描速率下,在1M H 2 SO 4溶液中实现了CS-SnO2-PANI三元杂化复合材料179.20fg(-1)电容值,最大能量密度为8.96( W H kg(-1))和功率密度为32.25(kg kg(-1))。基于壳聚糖的三元杂交复合材料的三种组分之间的协同效应可以是用于电容器应用的有希望的改性电极材料。

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  • 来源
    《RSC Advances》 |2016年第46期|共10页
  • 作者单位

    Alagappa Univ Sch Chem Sci Dept Ind Chem Bionanomat Res Lab Karaikkudi 630003 Tamil Nadu India;

    Alagappa Univ Sch Chem Sci Dept Ind Chem Bionanomat Res Lab Karaikkudi 630003 Tamil Nadu India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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