Thermally Cross-Linked Amidoxime-Functionalized Polymers of Intrinsic Microporosity Membranes for Highly Selective Hydrogen Separation
Thermally Cross-Linked Amidoxime-Functionalized Polymers of Intrinsic Microporosity Membranes for Highly Selective Hydrogen Separation
复制标题
用于高选择性氢分离的固有微孔膜的热交联偕胺肟官能化聚合物
DOI：
10.1021/acssuschemeng.1c02784
复制
发表时间：
2021-07
影响因子：
8.4
通讯作者：
Jin Jian
中科院分区：
文献类型：
--
作者：
Huang Menghui;Lu Kuan;Wang Zhenggong;Bi Xiangyu;Zhang Yatao;Jin Jian
氢气是一种重要的清洁能源，实现氢气的高效分离和纯化具有重要意义。在这项研究中，实现了高选择性的氢气分离的偕胺肟功能化的聚合物的固有微孔（AOPIM-1）膜在氩气气氛下，其中两步自交联反应发生在聚合物链上的偕胺肟基团之间，通过形成恶二唑环和三嗪环的热交联。通过13 C固体核磁共振、衰减全反射红外光谱和X射线光电子能谱对交联反应进行了系统的验证。由于可控的交联反应，不仅可以精细地定制气体传输通道，而且可以有效地保留骨架结构。所得膜表现出显着的分子筛行为。H2/CO2、H2/N2和H2/CH 4气体对的选择性分别为16、500和1000，并且H2、CO2、N2和CH 4的渗透率分别为300、18.6、0.6和0.3Barrer，远远超过现有技术报道的上限。热交联AOPIM-1膜在氢气分离方面具有潜在的应用价值。
Hydrogen is a vital and clean energy source, and it is of great significance to achieve efficient separation and purification of hydrogen. In this study, highly selective hydrogen separation was achieved by thermal cross-linking of amidoxime-functionalized polymers of intrinsic microporosity (AOPIM-1) membranes under an argon atmosphere, where a two-step self-cross-linking reaction occurred among the amidoxime groups on the polymer chains by forming oxadiazole rings and triazine rings. The cross-linking reaction was systematically verified by13C solid-state nuclear magnetic resonance, attenuated total reflection infrared spectroscopy, and X-ray photoelectron spectrometry. Thanks to the controllable cross-linking reaction, not only are the gas transport channels finely tailored, but also the backbone structure is effectively retained. The resulting membranes exhibited remarkable molecular sieving behavior. The selectivities of H2/CO2, H2/N2, and H2/CH4gas pairs are 16, 500, and 1000, respectively, and the permeabilities of H2, CO2, N2, and CH4are 300, 18.6, 0.6, and 0.3 Barrer, respectively, far exceeding the state-of-the-art reported upper bound. The thermally cross-linked AOPIM-1 membrane shows potential application in hydrogen separation.
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影响因子：
9.5
作者：
Raja Swaidan;B. Ghanem;E. Litwiller;I. Pinnau
通讯作者：
Raja Swaidan;B. Ghanem;E. Litwiller;I. Pinnau
影响因子：
--
作者：
Ji Wu;S. Japip;T. Chung
通讯作者：
Ji Wu;S. Japip;T. Chung
重复单元中同时具有平坦度和扭曲度对前驱体聚酰亚胺碳分子筛膜性能的影响
影响因子：
8.4
作者：
Liang, Jiachen;Wang, Zhenggong;Jin, Jian
通讯作者：
Jin, Jian
DOI：
10.1002/pola.1989.080270218
发表时间：
1989-01
期刊：
Journal of Polymer Science Part A
影响因子：
--
作者：
S. Idage;B. Idage;B. M. Shinde;S. P. Vernekar
通讯作者：
S. Idage;B. Idage;B. M. Shinde;S. P. Vernekar
影响因子：
4.6
作者：
Huan Wang;Songlin Liu;T. Chung;Hongmin Chen;Y. Jean;K. Pramoda
通讯作者：
Huan Wang;Songlin Liu;T. Chung;Hongmin Chen;Y. Jean;K. Pramoda