Co-based zeolitic imidazolate framework ZIF-9 membranes prepared on alpha-Al2O3 tubes through covalent modification for hydrogen separation
文献类型：期刊论文
| 作者 | Liu, Jiaqin; Liu, Chuanyao; Huang, Aisheng |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2020 |
| 卷号 | 45期号:1页码:703-711 |
| 关键词 | MOLECULAR-SIEVE MEMBRANE METAL-ORGANIC FRAMEWORK IN-SITU GROWTH H-2/CO2 SEPARATION GAS PERMEATION ALUMINA SUPPORT SILICA MEMBRANE MOF MEMBRANES ZNO NANORODS PERFORMANCE |
| DOI | 10.1016/j.ijhydene.2019.10.230 |
| 英文摘要 | Hydrogen has been regarded as the most promising clean and renewable energy. Beside the production of the hydrogen, the separation of hydrogen is also an import issue before it can be used in fuel cells. Membrane-based separation technologies have gained considerable attentions due to its high efficiency and low energy consumption. Zeolite imidazolate framework (ZIF) membranes have drawn intense interest due to their zeolite-like properties such as permanent porosity, uniform pore size and exceptional thermal and chemical stability. It is rather challenged to prepare well-intergrown Co-based zeolitic imidazolate frameworks (ZIFs) membranes on porous alpha-Al2O3 tubes since Co-based ZIFs prefer to form crystals in the synthesis solution rather than grow as membrane layer on the support surface. In this work, we report the preparation of high-quality ZIF-9 membrane with high H-2/CO2 selectivity and excellent thermal stability by using 3-aminopropyltriethoxysilane (APTES) as a covalent linker to modify the alpha-Al2O3 tube. Due to the formation of covalent bonds between APTES and ZIF-9, ZIF-9 nutrients are bound to the support surface, thus promoting the growth of dense and phase-pure ZIF-9 membrane with a thin thickness of about 4.0 mu m. The gas separation performances of the ZIF-9 membrane were evaluated by single gas permeation and mixture gas separation of H-2/CO2, H-2/N-2 and H-2/CH4, respectively. The mixture separation factors of H-2/CO2, H-2/CH4, and H-2/N-2 of the ZIF-9 membrane are 21.5, 8.2 and 14.7, respectively, which by far exceeds corresponding Knudsen coefficients. Moreover, the as-prepared ZIF-9 membrane exhibits excellent stability at a relatively broad range of operating temperature, which is beneficial for the industrial application of hydrogen separation or further membrane reactor. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20261]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | Huang, AS (corresponding author), East China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Dongchuan Rd 500, Shanghai 200241, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liu, Jiaqin,Liu, Chuanyao,Huang, Aisheng. Co-based zeolitic imidazolate framework ZIF-9 membranes prepared on alpha-Al2O3 tubes through covalent modification for hydrogen separation[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(1):703-711. |
| APA | Liu, Jiaqin,Liu, Chuanyao,&Huang, Aisheng.(2020).Co-based zeolitic imidazolate framework ZIF-9 membranes prepared on alpha-Al2O3 tubes through covalent modification for hydrogen separation.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(1),703-711. |
| MLA | Liu, Jiaqin,et al."Co-based zeolitic imidazolate framework ZIF-9 membranes prepared on alpha-Al2O3 tubes through covalent modification for hydrogen separation".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.1(2020):703-711. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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