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云师大朱爱新博士在《德国应化》发表文章

已有 980 次阅读 2019-10-16 20:10 |系统分类:人文社科

朱爱新,云南师范大学化学化工学院教授,硕士生导师,中山大学博士毕业生。


2019年10月6日,德国应化在线发表了朱爱新博士的最新研究成果。

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Abstract:  Coordination networks that reversibly switch between closed and open phases are of topical interest since their stepped isotherms can offer higher working capacity for gas storage applications than related rigid porous coordination networks. In order to be of practical utility, the pressures at which switching occurs, the gate-opening and gate-closing pressures. Here we study the effect of linker substitution to fine-tune gate-opening and gate-closing pressure. Specifically, three variants of a previously reported pcu topology MOF, X-pcu-5-Zn, have been prepared. X-pcu-6-Zn, 6 = 1,2-bis(4- pyridyl)ethane (bpe), X-pcu-7-Zn, 7 = 1,2-bis(4-pyridyl)acetylene (bpa) and X-pcu-8-Zn, 8 = 4,4'-azopyridine (apy), each exhibited switching isotherms but at different gate-opening pressures. The N2, CO2, C2H2 and C2H4 adsorption isotherms consistently indicated that the most flexible dipyridyl organic linker, 6, afforded lower gateopening and gate-closing pressures. This simple design principle enables rational control of the switching behaviour in adsorbent materials.



anie.201909977 (1).pdf




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