文献类型：期刊文献

英文题名：Open-air combustion synthesis of three-dimensional graphene for oil absorption and energy storage

作者：Qian, Min[1];Xu, Cheng[1];Gao, Yang[2]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：238

起止页码：149

外文期刊名：MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS

收录：;EI(收录号：20185106259410);WOS:【SCI-EXPANDED(收录号:WOS:000457507500020)】；

基金：This project is supported by National Natural Science Foundation of China (Grant No. 51705154 and 51605164) and the Fundamental Research Funds for the Central Universities (Project No. 222201714014, 222201714017, 222201718005, and 222201514316), and is also sponsored by Shanghai Sailing Program 17YF1403300.

语种：英文

外文关键词：Graphene; Combustion flame; Oil absorption; Supercapacitor

摘要：There are promising applications for three-dimensional (3D) graphene in energy storage, catalysis, mechanical sensors, oil absorption, etc. To realize these practical applications, a scalable, cost-effective, and controllable synthesis technique for growing 3D graphene is highly desired. In this study, a combustion flame method was developed to synthesize high-quality 3D graphene within 1 min in open air, demonstrating the high efficiency, cost-effectiveness, and scalability of the method. Based on its 3D porous characteristics, the 3D graphene shows promise for applications in oil absorption and supercapacitors. It has an absorption capacity of 60 times its original weight for oil and organic solvents with a recyclability of 15 times. When the 3D graphene was electrodeposited with manganese dioxide (MnO2), the as-formed 3D MnO2/graphene hybrid electrodes demonstrated electrochemical performance comparable to other reported MnO2-based supercapacitors with an energy density of 23.8 Wh/kg at a power density of 7.5 kW/kg.