Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
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 |
ISSN | 1387-1811 |
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 |
DOI | 10.1016/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 | |
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 |
推荐引用方式 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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