化学学报 ›› 2014, Vol. 72 ›› Issue (3): 382-387.DOI: 10.6023/A13080884 上一篇    下一篇

所属专题: 石墨烯

研究论文

微波还原氧化石墨烯及其气体储存性能研究

随东, 黄毅, 黄璐, 张昳, 陈永胜   

  1. 功能高分子材料教育部重点实验室; 天津化学化工协同创新中心; 纳米科学与技术中心; 高分子化学研究所, 南开大学化学学院, 天津 300071
  • 投稿日期:2014-02-12 发布日期:2014-02-25
  • 通讯作者: 黄毅,E-mail:yihuang@nankai.edu.cn;陈永胜,E-mail:yschen99@nankai.edu.cn Fax:0086-022-23500693 E-mail:yihuang@nankai.edu.cn;yschen99@nankai.edu.cn
  • 基金资助:

    项目受国家科技部(Nos. 2012CB933401,2011CB932602,2011DFB50300)及国家自然科学基金(Nos. 50933003,50902073,50903044)资助.

Investigation of Gas Storage Properties of Graphene Material Prepared by Microwave-assisted Reduction of Graphene Oxide

Sui Dong, Huang Yi, Huang Lu, Zhang Yi, Chen Yongsheng   

  1. Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
  • Received:2014-02-12 Published:2014-02-25
  • Supported by:

    Project supported by Ministry of Science and Technology of China (Nos. 2012CB933401, 2011CB932602, 2011DFB50300) and Natural Science Foundation of China (Nos. 50933003, 50902073, 50903044).

通过微波辅助还原氧化石墨烯(GO)的方法,制备了多孔石墨烯材料(MWRGO),并对该材料的结构与性质进行了深入研究. 结果表明,微波辐射使得GO有效还原,还原产物具有多孔、不规则堆积的结构,其比表面积达461.6 m2/g,孔径主要分布在0.67 nm左右. 进一步的研究表明,MWRGO材料具有很好的气体储存性能. 在77 K一个大气压下,MWRGO可储存0.52 wt%的H2,当压力增加到60 bar时,H2储存量高达10.7 wt%;在273 K一个大气压下,其对CO2的吸附量高达7.1 wt%.

关键词: 石墨烯, 碳材料, 气体吸附, 微波还原, 多孔材料

Porous graphene material, named as MWRGO, has been prepared by microwave-assisted reduction method. Extensive characterizations indicate that graphene oxide was effectively reduced and MWRGO has a porous and disordered stacking structure. It has a special surface area of 461.6 m2/g with pore size centered at 0.67 nm. H2 and CO2 adsorption properties of MWRGO were investigated, showing a H2 uptake of 0.52 wt% at 77 K and 1 atm and an absolute adsorption amount as high as 10.7 wt% at a higher pressure of 60 bar. The amount of CO2 adsorption at 273 K and 1 atm is 7.1 wt%.

Key words: graphene, carbon materials, gas storage, microwave reduction, porous materials