新型炭材料2007,Vol.22Issue(2):135-140,6.
微孔结构与表面改性对活性炭吸附储氢能力的影响
Effect of microstructure and surface modification on the hydrogen adsorption capacity of active carbons
摘要
Abstract
The effect of the microstructure of coconut-shell-based activated carbons, and their treatment with chemicals, on hydrogen adsorption capacity was studied. Active carbons from coconut shells using physical activation could be improved for hydrogen adsorption by treatment with HF or NH3 ·H2O. Treatment with HNO3 had no obvious effect and the treatment with H3PO4 lowered the hydrogen adsorption capacity considerably. All of the effects could be accounted for by changes in the specific surface area, pore size distribution, and surface chemistry of the active carbons. The specific surface area of carbons was the dominant factor for hydrogen adsorption no matter what kind of treatment was performed.关键词
活性炭/微孔结构/表面改性/储氢Key words
Activated carbon/Microstructure/Surface modification/Hydrogen storage分类
化学化工引用本文复制引用
苏伟,周亚平,魏留芳,孙艳,周理..微孔结构与表面改性对活性炭吸附储氢能力的影响[J].新型炭材料,2007,22(2):135-140,6.基金项目
国家自然科学基金(20336020),国家重点基础研究发展计划(G2000026404).National Natural Science Foundation of China 20336020 ) and Special Funds of Major State Basic Research Projects(G2000026404). (20336020)