一种合成纳米多孔石墨烯的燃烧方法。

A combustion method to synthesize nanoporous graphene.

作者信息

Yang Q Y, Zhou H L, Xie M T, Ma P P, Zhu Z S, Zhu W, Wang G Z

机构信息

Key Laboratory of Strongly-Coupled Matter Physics, Chinese Academy of Sciences, Hefei National Laboratory for Physical Science at Microscale, Department of Physics, University of Science and Technology of China Hefei Anhui 230026 P. R. China

出版信息

RSC Adv. 2018 Mar 5;8(17):9320-9326. doi: 10.1039/c7ra13568h. eCollection 2018 Feb 28.

DOI:10.1039/c7ra13568h

PMID:35541880

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9078665/

Abstract

In this paper, we introduce a combustion method which is rapid, low cost, mass-producing and environmentally friendly to produce nanoporous graphene. After loading a graphene oxide aerogel (GOA)/paper (GOP) on a preheated hot plate (as the heat source, with a temperature as low as 200 °C) under an ambient environment, in a few seconds, the GOA/GOP would self-combust and change into reduced graphene oxide (RGO) with nanopores mainly concentrated in the 0.4-2.0 nm range and a large specific surface area of 536 m g. Supercapacitors fabricated with the synthesized porous RGO (P-RGO) showed a high specific capacitance of 245 F g at 0.1 A g, and a retention rate of about 96.9% after 12 000 cycle tests with respect to the initial specific capacitance with a scan rate of 10.0 A g. The production yield of this method was as high as 77.0%.

摘要

在本文中，我们介绍了一种快速、低成本、可大规模生产且环保的燃烧方法来制备纳米多孔石墨烯。在环境氛围下，将氧化石墨烯气凝胶（GOA）/纸（GOP）放置在预热的热板（作为热源，温度低至200°C）上，几秒钟内，GOA/GOP会自燃并转变为还原氧化石墨烯（RGO），其纳米孔主要集中在0.4 - 2.0纳米范围内，比表面积高达536 m²/g。用合成的多孔RGO（P - RGO）制备的超级电容器在0.1 A/g时显示出245 F/g的高比电容，在扫描速率为10.0 A/g的12000次循环测试后，相对于初始比电容的保留率约为96.9%。该方法的产率高达77.0%。