氮掺杂和SnO2纳米粒子负载对全固态对称型石墨烯超级电容器性能的影响

doi:10.15541/jim20140527

无机材料学报 ›› 2015, Vol. 30 ›› Issue (6): 662-666.DOI: 10.15541/jim20140527

氮掺杂和SnO₂纳米粒子负载对全固态对称型石墨烯超级电容器性能的影响

于建华^{1, 2}, 许丽丽¹, 张武寿³, 朱倩倩¹, 王晓霞¹, 董立峰¹

(1. 青岛科技大学材料科学与工程学院, 青岛266042; 2. 中国科学院上海硅酸盐研究所, 特种无机涂层重点实验室, 上海201899; 3. 中国科学院化学研究所, 胶体界面与化学热力学院重点实验室, 北京100190)

收稿日期:2014-10-20 出版日期:2015-01-20 网络出版日期:2015-05-22
作者简介:于建华. E-mail: jianhuayu@qust.edu.cn

Enhanced Capacitive Properties of All-solid-state Symmetric Graphene Supercapacitors by Incorporating Nitrogen-doping and SnO₂ Nanoparticles

YU Jian-Hua^{1, 2}, XU Li-Li¹, ZHANG Wu-Shou³, ZHU Qian-Qian¹, WANG Xiao-Xia¹, DONG Li-Feng¹

(1. College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; 2. Key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China; 3.?Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute?of?Chemistry, Chinese Academy of Sciences, Beijing 100190, China)

Received:2014-10-20 Published:2015-01-20 Online:2015-05-22
About author:YU Jian-Hua(1984–), female, assistant professor. E-mail: jianhuayu@qust.edu.cn
Supported by:
International Scince and Technology Cooperation Program of China (2014DFA60150);Qingdao Municipal Science and Technology Program (13-1-4-219-jch);Open Fund of Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences (KLICM-2012-06)

摘要/Abstract

摘要：

电极材料是影响超级电容器性能的主要因素。本研究采用溶剂热法合成石墨烯和氮掺杂石墨烯, 通过简单的化学法在其表面负载SnO₂纳米粒子。利用刮涂工艺在FTO玻璃表面制备石墨烯、SnO₂/石墨烯、氮掺杂石墨烯和SnO₂/氮掺杂石墨烯薄膜, 并经400℃热处理。分别以制备的石墨烯基薄膜和PVA/H₃PO₄为电极和电解质组装对称型全固态超级电容器。测试结果表明, 与石墨烯相比, 氮掺杂石墨烯具有较大的晶粒尺寸、较高的比表面积和较高的超电容性能; SnO₂纳米粒子负载可显著提高石墨烯和氮掺杂石墨烯的超电容性能。

关键词: 纳米复合材料, SnO2纳米粒子, 氮掺杂石墨烯, 超级电容器

Abstract:

Graphene and N-doped graphene were synthesized by a solvothermal process, and their composites with SnO₂ nanoparticles were prepared by a facile one-pot chemical solution method. The corresponding films were fabricated by a blade coating process and followed by heat treatment at 400℃ for 1 h. All-solid-state supercapacitors were fabricated with graphene based films and a polymer gel of polyvinyl alcohol/H₃PO₄ as electrodes and electrolyte, respectively. The capacitance performance of the as-fabricated supercapacitors was characterized. The results suggest that compared with graphene, N-doped graphene exhibits larger crystalline size, lower specific surface area, yet superior capacitance performance, and the incorporation of SnO₂ nanoparticles on graphene and N-doped graphene sheets enhances their capacitive characteristics.

Key words: nanocomposite, SnO2 nanoparticles, nitrogen-doped graphene, supercapacitors

中图分类号:

TQ174

于建华, 许丽丽, 张武寿, 朱倩倩, 王晓霞, 董立峰. 氮掺杂和SnO₂纳米粒子负载对全固态对称型石墨烯超级电容器性能的影响[J]. 无机材料学报, 2015, 30(6): 662-666.

YU Jian-Hua, XU Li-Li, ZHANG Wu-Shou, ZHU Qian-Qian, WANG Xiao-Xia, DONG Li-Feng. Enhanced Capacitive Properties of All-solid-state Symmetric Graphene Supercapacitors by Incorporating Nitrogen-doping and SnO₂ Nanoparticles[J]. Journal of Inorganic Materials, 2015, 30(6): 662-666.

图/表 4

Fig. 1 Survey XPS spectra of PG (a) and NG (b), N1s spectra of NG (c) and Raman spectra of PG and NG (d)

Fig. 2 XRD patterns of PG, NG, SnO2/PG and SnO2/NG

Fig. 3 TEM images of SnO2/PG (a) and SnO2/NG (b) as well as their corresponding HRTEM images (c) and (d), respectively

Fig. 4 Electrochemical characterizations of graphene-based supercapacitors CV curves for PG and NG at different scanning rates (a, b), CV curves for PG, NG, SnO2/PG, and SnO2/NG at a scanning rate of 50 mV/s (c), and their Nyquist plots (d)

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氮掺杂和SnO₂纳米粒子负载对全固态对称型石墨烯超级电容器性能的影响

Enhanced Capacitive Properties of All-solid-state Symmetric Graphene Supercapacitors by Incorporating Nitrogen-doping and SnO₂ Nanoparticles

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