Mössbauer Study of Catalytically Grown Carbon Nanotube

作     者：LI Qun-qing FAN Shou-shan HAN Wei-qiang GAO Nai-fei WANG Xin-rong 李群庆;范守善;韩伟强;高乃飞;王新荣

作者机构：Department of PhysicsCenter of Atomic and Molecular SciencesTsinghua UniversityBeijing 100084 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1998年第15卷第1期

页      面：68-69页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No.59642006 

主　　题：ssbauer Catalytic carbon 

摘      要：The valence states of iron in iron catalysts,hydrogen reduced catalysts,and catalytically grown carbon nanotubes are determined by Mössbauer spectra,*** results show that the iron exists as Fe,FeO,andα-Fe_(2)O_(3) in hydrogen reduced catalysts,whereas it exists as Fe-C alloy,FeO,and α-Fe_(2)O_(3) in the catalysts encapsulated in carbon *** is postulated that Fe in hydrogen reduced catalysts plays the main role in the formation of catalytically grown carbon nanotube.