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A highly robust heterometallic TbIII/NiII–organic framework for C2 hydrocarbon separation and capture

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Abstract

The exquisite combination of hetreometallic [TbIIINiII(COO)3(H2O)] clusters with a designed hexatopic ligand generates one highly robust three-dimensional heterometallic TbIII/NiII–organic framework material {[TbNi(HTDP)(H2O)]·3DMF·2H2O}n (NUC-2; H6TDP = 2,4,6-tri(2,4-dicarboxyphenyl)pyridine). Gas adsorption measurements reveal that the activated NUC-2 exhibits ultrahigh C2H2 adsorption capacity but negligible uptake of C2H4, which is ascribed to its high stability and ultrahigh functional internal surface. Furthermore, dynamic breakthrough experiments confirm that NUC-2 can effectively fulfill the separation of a C2H2/C2H4 (1 : 99) mixture. Such excellent performance makes NUC-2 a promising adsorbent for practical C2H2/C2H4 separation and provides new insights into heterometallic MOFs for gas separation.

Graphical abstract: A highly robust heterometallic TbIII/NiII–organic framework for C2 hydrocarbon separation and capture

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Article information


Submitted
04 Dec 2019
Accepted
10 Jan 2020
First published
10 Jan 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

A highly robust heterometallic TbIII/NiII–organic framework for C2 hydrocarbon separation and capture

H. Chen, G. Zhuang, L. Fan, X. Zhang, L. Gao and D. Sun, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC09425C

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