Zeolitic Metal–Organic Framework with High-Density Hydrophilic Sites for Efficient Proton Conduction

IF 3.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Crystal Growth & Design Pub Date : 2025-03-13 DOI:10.1021/acs.cgd.5c0008110.1021/acs.cgd.5c00081

Ping Li, Junchao Dong, Hao Zhang, Jialu Li*, Jiyang Li, Jia Liu*, Fanyu Meng* and Xiaoqin Zou*,

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引用次数: 0

Abstract

Proton exchange membranes play a key role in fuel cells; however, the development of highly proton-conductive and stable materials still remains a challenge. Herein, a hydrolysis coordination strategy was proposed for the synthesis of a three-dimensional porous metal–organic framework (MOF) [Zn₈Na₄(ImDC)₁₂]. This MOF was structured with an ACO zeolite topology and high-density hydrophilic sites of nitrogen and oxygen. Under high-temperature and humidity conditions (353 K, 76% RH), [Zn₈Na₄(ImDC)₁₂] exhibited proton conductivity as high as 0.016 S cm^–1, outperforming that of most MOF materials reported previously. Mixed-matrix membranes of [Zn₈Na₄(ImDC)₁₂]@CS were fabricated with [Zn₈Na₄(ImDC)₁₂] and a chitosan polymer. The membrane with 10 wt % [Zn₈Na₄(ImDC)₁₂] showed an optimal proton conductivity of 0.051 S cm^–1. This study provides guidance for developing high-performance proton conduction materials.

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.