摘要
文章采用容量法测量在常温下压力升高到10 MPa时,多壁碳纳米管的吸附储氢性能,分析了热处理对碳纳米管的结构和吸附储氢量的影响。采用透射电镜(TEM)、激光拉曼光谱(Raman)和低温N2吸附(BET)对碳纳米管的微观结构进行表征。结果发现,热处理能明显地提高碳纳米管的石墨化程度,热处理后碳纳米管的质量储氢容量从原来的1.90%升高到2.17%。
Adsorption isotherms of hydrogen on multi-walled carbon nanotubes（MWNT） were obtained using the volumetric method under moderate pressure （10 MPa） at room temperature. The effect of heat treatment on the microstrueture and hydrogen adsorption of carbon nanotubes was discussed. The MWNTs were characterized by transmission electron microeopy（TEM）, Raman spectroscopy, and N2 adsorption isotherms（BET）. It was found that the crystal parameters were increased after heat treatment. The hydrogen storage capacity of carbon nanotubes was found to increase from 1.90 % to 2. 17 % after the heat treatment.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第12期1969-1972,共4页
Journal of Hefei University of Technology：Natural Science
基金
上海市科委纳米专项基金资助项目(0352nm087)
关键词
碳纳米管
吸附储氢
热处理
carbon nanotube
hydrogen adsorption storage
heat treatment
