摘要
氢能的储存是氢能利用的关键 ,一维碳纳米材料具有非常高的比表面积及一些常规材料所不具备的特异效应和性能 ,因此有望成为颇具优势的储氢材料。通过简述一维碳纳米材料储氢在各国的研究成果 ,表明其储氢容量比现有的一般储氢技术高 1至 2个数量级 ,引起世人的瞩目 ;详细介绍了碳纳米纤维的储氢机理 ,可能包括氢的物理和化学吸附两种形式 ,详细情况尚待深入研究 ;除此以外 ,还有许多诸如 :如何提高体积储氢密度和氢的吸脱附速度及动力学和实用条件下的吸放氢研究等问题需要解决。
One dimensional carbon nanomaterials become a candidate with many advantages for hydrogen storage because of their high surface area and other special properties. A brief review of carbon nanofibers for hydrogen storage is given indicating that hydrogen storage capacity in carbon nanofibers is higher than in existing materials. An explanation of the mechanism of adsorptive storage in carbon nanofibers is introduced, in which physical and chemical absorption on surfaces and nanopores of the nanofibers may occur. It is pointed out that carbon nanofibers are the most feasible candidate for hydrogen storage technologies, but some problems such as how to increase the volume capacity for hydrogen storage, absorption and desorption hydrogen velocity and to decrease the operation pressure must be solved.
出处
《新型炭材料》
SCIE
EI
CAS
CSCD
2002年第2期73-76,共4页
New Carbon Materials
基金
国家自然科学基金 (5 980 2 0 0 2 )
北京化工大学博士基金~~
关键词
一维碳纳米材料
储氢机理
应用前景
吸附
one dimendional carbon nanomaterials
mechanism
adsorption
carbon nanofibers
hydrogen
