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Fabrication of single-walled carbon nanotubes in the channels of CoAPO-5 membrane by low-temperature hydrocracking
Yang, Wenshen; Lang, Lin; Yin, Xiuli; Wu, Chuangzhi
2020-08-01
发表期刊MICROPOROUS AND MESOPOROUS MATERIALS
ISSN1387-1811
卷号302页码:6
通讯作者Yin, Xiuli(xlyin@ms.giec.ac.cn)
摘要The defect-free CoAPO-5 membrane was fabricated on the porous alpha-Al(2)O(3 )substrate by using in-situ crystallization, and the prepared CoAPO-5 membrane was used as the template for the preparation of single-walled carbon nanotubes (SWCNTs) inside the liner channels (0.73 nm in diameter) by low-temperature hydrocracking, utilizing the organic precursor (tripmpylamine) as the carbon source. The results of X-ray diffraction and scanning electron microscopy indicated that the synthesized membrane covered tightly on the alpha-Al2O3 substrate was 50 mu m in thickness, which was composed of well-intergrown and randomly oriented CoAPO-5 molecular sieves. According to the characterization using high-resolution transmission electron microscopy, polarized Raman scattering and thermal-gravimetric analysis, 0.4 nm SWCNTs were synthesized inside the zeolitic channels of the CoAPO-5 membrane, and 45.47% tripropylamine were successfully converted into SWCNTs after hydrocracking for 12 hat 350 degrees C. On the basis of N(2 )adsorption/desorption isotherms for the CoAPO-5 molecular sieves and SWCNTs/CoAPO-5 composite material, it can be concluded that the fraction of channels not containing SWCNTs in the resulting SWCNTs/CoAPO-5 composite membrane is small. The results of single-component pervaporation demonstrate that the inter-crystal defects in the as-synthesized SWCNTs/CoAPO-5 composite membrane are negligible.
关键词SWCNTs/CoAPO-5 composite membrane Hydrocracking CoAPO-5 membrane Single-walled carbon nanotubes
DOI10.1016/j.micromeso.2020.110234
关键词[WOS]ZEOLITE MEMBRANES ; TEMPLATE REMOVAL ; MOLECULAR-SIEVES ; ALPO4-5 ; PERMEATION ; ALUMINOPHOSPHATES ; PERFORMANCE ; SEPARATION ; MECHANISM
收录类别SCI
语种英语
资助项目National Key R&D Program of China[2016YFE0203300] ; Guangdong Natural Science Foundation[2017B030308002] ; Science and Technology Program of Guangzhou[201707010242]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
项目资助者National Key R&D Program of China ; Guangdong Natural Science Foundation ; Science and Technology Program of Guangzhou
WOS类目Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号WOS:000532052100017
出版者ELSEVIER
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/26927
专题中国科学院广州能源研究所
通讯作者Yin, Xiuli
作者单位Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
第一作者单位中国科学院广州能源研究所
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GB/T 7714
Yang, Wenshen,Lang, Lin,Yin, Xiuli,et al. Fabrication of single-walled carbon nanotubes in the channels of CoAPO-5 membrane by low-temperature hydrocracking[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2020,302:6.
APA Yang, Wenshen,Lang, Lin,Yin, Xiuli,&Wu, Chuangzhi.(2020).Fabrication of single-walled carbon nanotubes in the channels of CoAPO-5 membrane by low-temperature hydrocracking.MICROPOROUS AND MESOPOROUS MATERIALS,302,6.
MLA Yang, Wenshen,et al."Fabrication of single-walled carbon nanotubes in the channels of CoAPO-5 membrane by low-temperature hydrocracking".MICROPOROUS AND MESOPOROUS MATERIALS 302(2020):6.
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