Syntheses and catalytic applications of the high-N-content,the cup-stacking and the macroscopic nitrogen doped carbon nanotubes

作     者：Qi Wang Haihua Wang Yajie Zhang Guodong Wen Hongyang Liu Dangsheng Su 

作者机构：School of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China Institute of Metul ResearchChinese Academy of SciencesShenyaag 110016China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2017年第33卷第8期

页      面：843-849页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financial support from the National Natural Science Foundation of China(Nos.21133010,21473223,51221264,21261160487,21411130120,21503241,91545119 and 91545110) the“Strategic Priority Research Program”of the Chinese Academy of Sciences(Grant No.XDA09030103) the CAS/SAFEA International Partnership Program for Creative Research Teams 

主　　题：High-N-content NCNT Cup-stacking NCNT Macroscopic NCNT CO oxidation Oxidative dehydrogenation 

摘      要：The high-N-content, the cup-stacking and the macroscopic nitrogen doped carbon nanotubes（NCNT）were synthesized via an easily manufactured catalytic chemical vapor deposition（CCVD） method. Nitrogen physisorption, transmission electron microscopy（TEM）, thermogravimetric analysis（TGA）, X-ray diffraction（XRD） and X-ray photoelectron spectroscopy（XPS） were used to characterize the as-obtained NCNTs. High reaction temperatures were found to be the key point to the formation of inner-cup-stacking NCNTs. However, the synthesis of the outer-cup-stacking NCNT needs special demands not only to the reaction temperature but also to the catalyst and the carrier gas. The possibility of CO oxidation by NCNT was proved to be very small, and the outer-cup-stacking NCNT showed obvious advantage in the oxidative dehydrogenation（ODH） of butene to butadiene compared to a bamboo-like NCNT with an even higher N content.