Significant gas uptake enhancement by post-exchange of zinc(II) with copper(II) within a metal–organic framework

Xiao-Jun Wang; Pei-Zhou Li; Lei Liu; Quan Zhang; Parijat Borah; Jinye Daniel Wong; Xiu Xiang Chan; Ganguly Rakesh; Yongxin Li; Yanli Zhao

doi:10.1039/C2CC34921C

Significant gas uptake enhancement by post-exchange of zinc(ii) with copper(ii) within a metal–organic framework†

Xiao-Jun Wang,^a Pei-Zhou Li,^a Lei Liu,^a Quan Zhang,^a Parijat Borah,^a Jinye Daniel Wong,^a Xiu Xiang Chan,^a Ganguly Rakesh,^a Yongxin Li^a and Yanli Zhao*^ab

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* Corresponding authors

^a Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
E-mail: zhaoyanli@ntu.edu.sg
Tel: +65 6316 8792

^b School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798

Abstract

Coordination of a tetratopic nitrogen-rich linker with Zn²⁺ under solvothermal conditions afforded a Zn-based metal organic framework (MOF), where the Zn(II) ions could be exchanged by Cu(II) ions in a single-crystal-to-single-crystal fashion leading to a new Cu-based MOF. Such transformation induces a significant enhancement in gas sorption along with a high selectivity towards CO₂ over N₂ and CH₄.

Chemical Communications

Significant gas uptake enhancement by post-exchange of zinc(ii) with copper(ii) within a metal–organic framework†

Abstract

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Significant gas uptake enhancement by post-exchange of zinc(II) with copper(II) within a metal–organic framework

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