Article
Chemistry, Inorganic & Nuclear
Ying Li, Junyang Feng, Luyao Wang, Gang Li
Summary: In recent years, carboxylic acid-based MOFs have gained attention as promising candidates for proton-exchange membranes due to their high stability and excellent proton conductivity. In this study, two MOFs with high water stability were synthesized, and their intrinsic proton conductivity was investigated. The results showed that under specific conditions, the proton conductivities of the MOFs reached promising values. Additionally, the study inferred the principle of proton transfer, providing new inspiration for the design of proton conduction crystalline materials.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Hong-Liang Jia, Bing-Xue Han, Gang Li
Summary: In this study, one-dimensional and three-dimensional metal-organic frameworks with excellent thermal and water stability were prepared. The proton conductivity of these frameworks increases with temperature and humidity, reaching values above 10-4 S/cm.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Review
Chemistry, Inorganic & Nuclear
Rui-lan Liu, Dan-Yang Wang, Jin-Rui Shi, Gang Li
Summary: This review discusses the recent advances in proton conductive sulfonate-based MOFs, analyzing the relationship between structures and proton conducting properties. Perspectives on future opportunities and challenges are proposed and highlighted.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Inorganic & Nuclear
Junyang Feng, Jianding Li, Zhibing Sun, Gang Li
Summary: In this study, a new highly stable three-dimensional Pb(II) MOF was prepared and its proton conductivity was examined under different humidities and temperatures. The proton conducting mechanism was speculated based on crystal structural analysis and calculated activation energy.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Review
Chemistry, Inorganic & Nuclear
Bing-Xue Han, Yuan-Fan Jiang, Xue-Rong Sun, Zi-Feng Li, Gang Li
Summary: This article comprehensively summarizes the proton conductive MOFs constructed by N-heterocyclic organic ligands, highlighting their potential as promising proton conductors.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Inorganic & Nuclear
Hong Zhao, Zheng-Hua Du, Chen-Yu Mu, Gang Li
Summary: This study synthesized a 3D HOF and a 3D Ni(II) MOF, both of which demonstrated excellent thermal and water stability, as well as superior proton conductivity under high humidity and temperature conditions. These findings provide new inspiration for the exploration of novel proton-conductive materials.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Guo-Qing Shi, Zhi-Xiong Tao, Qing-Xu Wang, Gang Li
Summary: In this study, two metal-organic frameworks (MOFs) with high proton conductivity were synthesized using a multifunctional organic ligand. The MOFs demonstrated significant humidity- and temperature-dependence in their water-mediated proton conductivity, reaching a value above 10-4 S cm-1 under specific conditions. The H-bonded networks within the MOFs were found to be responsible for their enhanced proton conductivity.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Applied
Hui-Min Ren, Bo-Yang Liu, Bing-Tao Zuo, Zi-Feng Li, Gang Li
Summary: In this study, three Ce-MOFs with similar structures were constructed and their structural stabilities and proton conductive properties in water were investigated. The results showed that the proton conductivity of the MOFs increased with higher relative humidity and temperature. MOFs with more free -COOH groups exhibited better proton conductivity. These comparative studies provide new inspiration for the fabrication of Ce(IV)-based MOFs with high stability and excellent proton conductivity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Hui-Min Ren, Hong-Wei Wang, Yuan-Fan Jiang, Zhi-Xiong Tao, Chen-Yu Mu, Gang Li
Summary: This review provides an overview of the latest progress in proton conductive lanthanide-based metal-organic frameworks (Ln-MOFs), including synthesis strategies, structural characteristics, proton conductivity, proton conductive mechanism, and applications. Furthermore, the design techniques and future development directions of Ln-MOFs are explored through the discussion of structure-property relationships.
TOPICS IN CURRENT CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Li-Xia Xie, Zhe-Jun Ye, Xu-Dong Zhang, Gang Li
Summary: In this study, two MOFs were designed and synthesized using phenyl-substituted acylthiourea-carboxylic acid ligands, characterized by single-crystal X-ray diffraction, and found to exhibit good proton conductivity under high humidity and high temperature conditions.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhi-Qiang Shi, Ning-Ning Ji, Xin Zhuo, Chun-Li Zhang, Xiao-Xin Xie, Gang Li
Summary: A highly stable Co(II) complex was synthesized and its proton conductivity in water vapor was investigated. The results showed that the proton conductivity was dependent on temperature and relative humidity. Under high humidity conditions, the complex exhibited good proton conductivity.
INORGANICA CHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Xin Chen, Shuai-Long Zhang, Shang-Hao Xiao, Zi-Feng Li, Gang Li
Summary: Recently, researchers have focused on preparing and studying proton exchange membranes. Metal-organic frameworks (MOFs) have been considered as candidates for composite membrane fillers due to their high crystallinity and structural characteristics. In this study, Hf-based MOFs were doped into a cost-effective chitosan matrix as fillers to fabricate composite films with excellent proton conductivity. The proton conductivities of the composite membranes reached above 10(-2) S cm(-1) under 100°C/98% RH.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Ruilan Liu, Yi-Hong Yu, Hong-Wei Wang, Yu-Yang Liu, Gang Li
Summary: Six isostructural three-dimensional Ln(III)-organic frameworks were fabricated using a multifunctional ligand H3MIDC, exhibiting humidity- and temperature-dependent proton conductivity. The proton conductivity systematically enhances with decreasing ionic radius, suggesting that lanthanide contraction tactics effectively regulate proton conductivity. These Ln-MOFs show promising potential for future applications due to their water and electrochemical stability.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Linkun Cai, Junsheng Yang, Yuyan Lai, Yuling Liang, Rongchun Zhang, Cheng Gu, Susumu Kitagawa, Panchao Yin
Summary: The confinement of proton carrier molecules in nanostructures can reduce their proton dissociation energy. However, restricted molecular motion from surface attraction impedes the easy transportation of free protons. To address this issue, imidazole is confined in the channels of porous coordination polymers with tunable geometries, and its electric/structural relaxations are measured. Imidazole confined in square-shaped channels exhibits heterogeneity in dynamics with a core-shell-cylinder model. The dimensions and geometry of the nanochannels play a crucial role in shielding the blocking effect from attractive surfaces and facilitating the filling of internal proton carrier molecules, leading to enhanced dynamics and proton conductivity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shuai-Long Zhang, Zhong-Cheng Guo, An-Ran Su, Jian Yang, Zi-Feng Li, Yu-Bing Si, Gang Li
Summary: This study elucidates the potential impact of intramolecular H-bonds within the pore walls of COFs on proton conductivity. The inclusion of an imidazole group disrupts these intramolecular bonds, leading to the formation of intermolecular H-bonds within the pore channels, thus dramatically increasing proton conductivity. DFT calculations provide further evidence for this inference.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)