石墨烯负载新型<i>π</i>-共轭聚合物纳米复合电极材料的合成及其超级电容特性

引用本文: 周晓, 孙敏强, 王庚超. 石墨烯负载新型π-共轭聚合物纳米复合电极材料的合成及其超级电容特性[J]. 物理化学学报, 2016, 32(4): 975-982. doi: 10.3866/PKU.WHXB201601281 shu

Citation: ZHOU Xiao, SUN Min-Qiang, WANG Geng-Chao. Synthesis and Supercapacitance Performance of Graphene-Supported π-Conjugated Polymer Nanocomposite Electrode Materials[J]. Acta Physico-Chimica Sinica, 2016, 32(4): 975-982. doi: 10.3866/PKU.WHXB201601281 shu

石墨烯负载新型π-共轭聚合物纳米复合电极材料的合成及其超级电容特性

周晓 ^1, ,
孙敏强 ^1,2, ,
王庚超 ^{1,
,}

1.
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, 上海市先进聚合物材料重点实验室, 上海 200237;
2.
2. 建德市顺发化工助剂有限公司, 杭州 311600

通讯作者: 王庚超

基金项目:
国家自然科学基金项目(51173042) (51173042)

上海市科委国际合作项目(15520720500)资助 (15520720500)

摘要: 采用γ 射线辐照还原技术获得易分散石墨烯(GNS),并以其为载体,以樟脑磺酸为掺杂剂和软模板,借助化学氧化聚合方法制备出分级孔结构的石墨烯负载聚(1,5-二氨基蒽醌)(GNS@PDAA)纳米复合材料。运用傅里叶变换红外(FTIR)光谱、拉曼光谱(Raman)、原子力显微镜(AFM)、能谱仪(EDS)、场发射扫描电镜(FE-SEM)和电化学测试等手段研究了不同GNS/DAA质量比对GNS@PDAA复合材料的形貌、结构及超级电容特性的影响。研究表明,当DAA/GNS质量比为6/1 时,借助π-π堆叠和网络限域作用,PDAA以20-40 nm纳米颗粒的形式牢固沉积于石墨烯表面,材料内部存在大量10-30 nm尺寸的介孔。该GNS@PDAA复合材料在0.5 A·g^-1时呈现最高的比电容(398.7 F·g^-1),优异的倍率特性(在50 A·g^-1下比电容保持率为71%)和非常好的循环性能(20000 次循环后比电容损失仅为8.3%)。进而证实了GNS@PDAA复合材料所组装的超级电容器具有优异的串并联特性。

关键词:

English

Synthesis and Supercapacitance Performance of Graphene-Supported π-Conjugated Polymer Nanocomposite Electrode Materials

1.
1. Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science & Engineering, East China University of Science & Technology, Shanghai 200237, P. R. China;
2.
2. Jiande Shunfa Chemical Adjuvant Co. Ltd., Hangzhou 311600, P. R. China

Corresponding author: 王庚超

Received Date: 02 December 2015
Available Online: 28 January 2016
Fund Project:
国家自然科学基金项目(51173042)

上海市科委国际合作项目(15520720500)资助

Abstract: Well-dispersed graphene nanosheets (GNS) were prepared by the ⁶⁰Co γ-ray irradiation reduction technique. On this basis, the hierarchical graphene nanosheet-supported poly(1,5-diaminoanthraquinone) (GNS@PDAA) nanocomposites were synthesized by the chemically oxidative polymerization method using camphor sulfonic acid as both the dopant and soft template. The influence of the DAA/GNS mass ratios on the morphology, chemical structure, and supercapacitance performance for GNS@PDAA nanocomposites was investigated. The structure, morphology, and electrochemical properties of the composites were characterized by Fourier infrared spectroscopy (FTIR), Raman spectroscopy (Raman), atomic force microscope (AFM), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy (FE-SEM), and electrochemical measurements. The results show that for the GNS@PDAA nanocomposite with DAA/GNS mass ratio of 6/1, the PDAA nanoparticles (20-40 nm diameter) are evenly deposited on the surface of GNS, which intercalate a large number of mesopores with 10-30 nmthrough strong π-π stacking and network confinement. As a result, the GNS@PDAA exhibits the highest specific capacitance (398.7 F·g^-1 at 0.5 A·g^-1), excellent rate capability (71% capacitance retention at 50 A·g^-1), and superior cycling stability (only 8.3% capacitance loss after 20000 cycles). Furthermore, based on the GNS@PDAA nanocomposites as both negative and positive electrodes, the as-assembled supercapacitors showed an excellent series/parallel connection effect in aqueous system.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

石墨烯负载新型π-共轭聚合物纳米复合电极材料的合成及其超级电容特性

通讯作者: 王庚超

English

Synthesis and Supercapacitance Performance of Graphene-Supported π-Conjugated Polymer Nanocomposite Electrode Materials

Corresponding author: 王庚超

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

石墨烯负载新型π-共轭聚合物纳米复合电极材料的合成及其超级电容特性

通讯作者: 王庚超

English

Synthesis and Supercapacitance Performance of Graphene-Supported π-Conjugated Polymer Nanocomposite Electrode Materials

Corresponding author: 王庚超

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs