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The Solvent Induced Inter-Dimensional Phase Transformations of Cobalt Zeolitic-Imidazolate Frameworks
Li, Xu1,2; Li, Zhenhu2; Lu, Li3; Huang, Limin4; Xiang, Lu2,5; Shen, Jun5; Liu, Shuangyi2; Xiao, Dong-Rong1,6
2017-08-04
摘要Studying inter-dimensional phase transitions of zeolitic-imidazolate frameworks (ZIFs) is essential for developing strategies in controlling morphology and properties. Herein, the inter-dimensional topotactic phase transformations of 3D ZIF-67 to 2D ZIF-L are investigated in detail by employing a simple and efficient solvent-induced growth method. In addition to ZIF-67 and ZIF-L, a series of novel core-shell composites of ZIF-67@ZIF-L, with unprecedented morphologies, are also obtained and well-defined. The different behaviors of the amine hydrogen of 2-MIM in the sol-vents play a pivotal role for inter-dimensional phase transformations, and in combination with the concentration of 2-MIM, the 2D to 3D phase transformations are also revealed. The findings are very beneficial for morphological design of the ZIFs, along with exploration of the corresponding properties. Impressively, Co-ZIFs exhibit interesting tunable CO2 adsorption behaviors with the phase evolution, which might bring broader understanding for designing CO2 detection and adsorption devices.
关键词inter-dimensional phase transformations selective gas adsorption solvent induced effect zeolitic-imidazolate frameworks
DOI10.1002/chem.201701721
发表期刊CHEMISTRY-A EUROPEAN JOURNAL
ISSN0947-6539
卷号23期号:44页码:10638-10643
通讯作者Xiao, DR (reprint author), Southwest Univ, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China. ; Li, ZH ; Liu, SY (reprint author), Chinese Acad Sci, Chongqing Key Lab Multiscale Mfg Technol, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China. ; Xiao, DR (reprint author), Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China.
收录类别SCI
WOS记录号WOS:000406948500025
语种英语