文献类型：期刊文献

中文题名：聚吡咯-分级多孔碳纳米复合材料的制备及其电化学性能

英文题名：Synthesis and Electrochemical Performance of Polypyrrole-Hierarchical Porous Carbons Nanocomposites

作者：邬斌洁[1];程起林[1];姜立学[1];李春忠[1]

机构：[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份：2013

卷号：26

期号：2

起止页码：162

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(20925621);上海市纳米专项(1052nm02300)

语种：中文

中文关键词：聚吡咯;分级多孔碳;纳米复合材料;电化学性能

外文关键词：polypyrrole; hierarchical porous carbons; nanocomposite; electrochemical performance

摘要：以空心介孔硅球为模板,酚醛树脂乙醇溶液为碳源制得了分级多孔碳(HPCs)。以酸化处理后的HPCs为载体、对甲苯磺酸(p-TSA)为掺杂剂、三氯化铁(FeCl3)为氧化剂,通过原位化学氧化聚合法制备了聚吡咯-分级多孔碳(PPy-HPCs)纳米复合材料。采用场发射扫描电镜(FESEM)、透射电镜(TEM)、傅里叶红外光谱仪(FT-IR)、恒流充放电、循环伏安以及交流阻抗等测试技术对复合材料进行了形貌结构和电化学性能的研究。结果表明:聚吡咯成功地包覆在HPCs的表面,随着聚吡咯含量的增加,复合材料的比容量呈现先增大后减小的趋势。当聚吡咯的质量含量为34.9%时,复合材料在电流密度为0.1A/g时达到最大比容量(316F/g),在1A/g的电流密度下循环1 000次后,比容量保持率为95.8%,聚吡咯的引入有效地提高了HPCs电极材料的电化学性能。
Hierarchical porous carbons（HPCs） were fabricated using hol hard templates and phenolic resin ethanol solution as carbon source. Pol bons （PPy-HPCs） composites were successfully synthesized by in situ c low mesoporous silica spheres as ypyrrole-hierarchical porous car hemical oxidative polymerization method with p TSA as the dopant and FeCl2 as the oxidant. The morphology, structure and electrochemi cal performance of PPy HPCs nanocomposites were characterized by field emission scanning electron microscopy （FESEM）, transmission electron microscopy （TEM）, Fourier transform infrared （FT IR） spectra, galvanostatic charge discharge, cyclic voltammetry （CV） and electrochemical impedance spectros copy （EIS） measurements. Results showed that PPy were deposited on the surface of HPCs. A maximum specific capacitance of 316 F/g was obtained at a current density of 0. 1 A/g and the specific capacitance retained 95.8% after 1 000 charge-discharge cycles at a current density of 1 A/g when the PPy mass content was 34.9 %. The electrochemical performance of HPCs electrode can be effectively improved by introduction of PPy.