Post-synthesis functionalization of ZIF-90 with sulfonate groups for high proton conduction

Yu-Xiang Lian; Shan-Shan Liu; Jun-Jun Sun; Peng Luo; Xi-Yan Dong; Xiao-Fei Liu; Shuang-Quan Zang

doi:10.1039/d2dt02569h

Post-synthesis functionalization of ZIF-90 with sulfonate groups for high proton conduction

Dalton Trans. 2022 Sep 26;51(37):14054-14058. doi: 10.1039/d2dt02569h.

Authors

Yu-Xiang Lian¹, Shan-Shan Liu¹, Jun-Jun Sun¹, Peng Luo¹, Xi-Yan Dong^{1

2}, Xiao-Fei Liu², Shuang-Quan Zang²

Affiliations

¹ College of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo 454000, China. [email protected].
² Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China. [email protected].

PMID: 36106962
DOI: 10.1039/d2dt02569h

Abstract

Introducing sulfonic acid groups into MOF materials is one of the effective approaches to enhance proton conduction. Here, we attempted to prepare a new post-modified ZIF-90-based material by addition reaction of the aldehyde group with bisulfite to obtain partially functionalized ZIF-90-SO₃Na_(2.3). ZIF-90-SO₃Na_(2.3) exhibits a high proton conductivity of 2.26 × 10^-2 S cm^-1 at 98% RH and 100 °C.