A nitro-decorated NbO-type metal–organic framework with a highly selective CO2 uptake and CH4 storage capacity

Mingxing Zhang; Qian Wang; Zhiyong Lu; Huiyan Liu; Wenlong Liu; Junfeng Bai

doi:10.1039/C4CE00202D

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A nitro-decorated NbO-type metal–organic framework with a highly selective CO₂ uptake and CH₄ storage capacity†

Mingxing Zhang,^a Qian Wang,^a Zhiyong Lu,^a Huiyan Liu,^a Wenlong Liu*^b and Junfeng Bai*^a

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* Corresponding authors

^a State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
E-mail: bjunfeng@nju.edu.cn
Tel: +86 25 83593384

^b College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
E-mail: liuwl@yzu.edu.cn

Abstract

A nitro-decorated NbO-type metal–organic framework, Cu₂NTPTB (NJU-Bai 14; H₄NTPTB = 2′-nitro-[1,1′:4′,1′′-terphenyl]-3,3′′,5,5′′-tetracarboxylic acid), was synthesized and structurally characterized. It exhibited high permanent porosity with a BET surface area of 2384 m² g⁻¹, improved adsorption selectivity of CO₂/CH₄ (6.5) and CO₂/N₂ (20.8) at 298 K and 1 bar, high excess unsaturation CO₂ uptake (94.0 wt%) at 273 K and 20 bar, and high methane total uptake of 184 cm³ cm⁻³ at 290 K and 35 bar.

This article is part of the themed collection: International Year of Crystallography Celebration: Asia-Pacific

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Article information

DOI: https://doi.org/10.1039/C4CE00202D
Article type: Communication
Submitted: 26 Jan 2014
Accepted: 13 Mar 2014
First published: 13 Mar 2014

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CrystEngComm, 2014,16, 6287-6290

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A nitro-decorated NbO-type metal–organic framework with a highly selective CO₂ uptake and CH₄ storage capacity

M. Zhang, Q. Wang, Z. Lu, H. Liu, W. Liu and J. Bai, CrystEngComm, 2014, 16, 6287 DOI: 10.1039/C4CE00202D

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