|本期目录/Table of Contents|

[1]陈惠燕,何明宏,李 亮*,等.三维硫氮双掺杂石墨烯/二氧化锰复合水凝胶的制备及性能研究[J].武汉工程大学学报,2022,44(03):282-287.[doi:10.19843/j.cnki.CN42-1779/TQ.202008026]
　CHEN Huiyan,HE Minghong,LI Liang*,et al.Preparation and Properties of Three Dimensional S/N-Codoped Graphene/MnO2 Composite Hydrogels[J].Journal of Wuhan Institute of Technology,2022,44(03):282-287.[doi:10.19843/j.cnki.CN42-1779/TQ.202008026]
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三维硫氮双掺杂石墨烯/二氧化锰复合水凝胶的制备及性能研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
44
期数:
2022年03期
页码:
282-287
栏目:
材料科学与工程
出版日期:
2022-06-30

文章信息/Info

Title:
Preparation and Properties of Three Dimensional S/N-Codoped Graphene/MnO2 Composite Hydrogels
文章编号:
1674 - 2869（2022）03 - 0282 - 06
作者:
陈惠燕; 何明宏; 李 亮*; 张 桥; 喻湘华
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
CHEN Huiyan; HE Minghong; LI Liang*; ZHANG Qiao; YU Xianghua
School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
超级电容器; 硫氮双掺杂; 二氧化锰; 石墨烯水凝胶; 水热法
Keywords:
supercapacitor;  S/N-codoping;  manganese dioxide;  graphene hydrogel;  hydrothermal method
分类号:
O633
DOI:
10.19843/j.cnki.CN42-1779/TQ.202008026
文献标志码:
A
摘要:
以氧化石墨烯（GO）为主要原材料制备了三维硫氮双掺杂石墨烯/二氧化锰（G/MnO2）复合水凝胶，并将其作为超级电容器的无支撑电极材料进行电化学性能研究。以硫脲为S和N源的水热还原法制备S和N双掺杂GO，S和N的成功掺杂，增加了活性位点。再以S和N双掺杂GO水凝胶为基质负载MnO2。利用X射线衍射、X射线光电子能谱、扫描电子显微镜表征产物的微观形貌与结构，运用电化学工作站测试该材料的电化学性能。结果表明：当硫脲投入量为0.12 g制备的S和N双掺杂G/MnO2复合水凝胶在电流密度为2 A/g时，该材料的比电容为234 F/g。且以1 mol/L的Na2SO4作为电解质，经过1 000圈长循环测试后，该材料的比电容保持率为89%。
Abstract:
The three-dimensional S/N-codoped graphene/manganese dioxide （G/MnO2） composite hydrogel was prepared using graphene oxide（GO） as the main raw material，and its electrochemical performance was studied as an unsupported electrode material for supercapacitor. The S/N-codoped GO hydrogel was first prepared by hydrothermal reduction method using thiourea as S and N sources. The successful doping of S and N increased the active sites. Then the S/N codoped GO hydrogel was used as the matrix to load MnO2. The product was characterized by X-ray diffraction，X-ray photoelectron spectroscopy and scanning electron microscopy. The electrochemical performance of the material was tested by electrochemical workstation. The experimental results showed that the specific capacitance of S/N co-doped G/MnO2 composite hydrogel prepared with 0.12 g thiourea is 234 F/g at the current density of 2 A/g. Using 1 mol/L Na2SO4 as the electrolyte，the specific capacitance retention of this material is 89% after 1 000 cycles.

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备注/Memo

备注/Memo:
收稿日期：2020-08-28
基金项目：湖北高校2019年省级大学生创新创业训练计划项目（S201910490033）
作者简介：陈惠燕，硕士研究生。E-mail：[email protected]
*通讯作者：李 亮，博士，教授。E-mail：[email protected]
引文格式：陈惠燕，何明宏，李亮，等. 三维硫氮双掺杂石墨烯/二氧化锰复合水凝胶的制备及性能研究［J］. 武汉工程大学学报，2022，44（3）：282-287.

更新日期/Last Update: 2022-06-29