天然气化工2011,Vol.36Issue(5):1-8,8.
碳纳米管的改性及对Co/CNTs催化剂费托-合成反应性能的影响
Modification of carbon nanotubes and its effect on performance of Co/CNTs catalyst for F-T synthesis
摘要
Abstract
The modification of carbon nanotubes (CNTs) by the methods of chemical treatment etc. Was investigated. The results Showed that modification of CNTs could significantly increase the specific surface area of CNTs and the amount of oxygen-containing groups on the surface of CNTs. Among several modifying methods, nitric acid co-boiling reflux treatment gave the best result, and using the higher concentration nitric acid for the modification was better. F-T synthesis reaction over the nitric acid-treated CNTs supported cobalt catalyst Co/CNTs prepared by incipient wet impregnation method could significantly increase CO conversion with slight increase of CH4 selectivity and somewhat decrease of C54 selectivity. This was attributed to the increase of cobalt dispersion and the decrease of cobalt particle size in the Co/CNTs catalyst关键词
碳纳米管/硝酸/改性/钴/费-托合成Key words
carbon nanotubes/ nitric acid/ modification/ cobalt/ Fischer-Tropsch synthesis分类
化学化工引用本文复制引用
吕静,白素丽,黄承都,马新宾,李振花..碳纳米管的改性及对Co/CNTs催化剂费托-合成反应性能的影响[J].天然气化工,2011,36(5):1-8,8.基金项目
国家自然科学基金(21076151),教育部新世纪人才计划(NCET-06-0239) (21076151)