Enhanced Proton Conduction in Metal–Organic Frameworks through Single-Crystal to Single-Crystal Transformation

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

In this work, an anionic framework Co-MOF (1) was elaborately constructed, which underwent single-crystal-to-single-crystal (SC-SC) transformation to produce 1-Cr and 1-Fe after immersion in a CrCl3 or FeCl3 solution. Despite the similar crystal structure, significantly enhanced proton conductivities of far exceed that 1 at all humidity temperature conditions. Even 30 °C 98% RH, conductivity can reach up high values 1.49 × 10–2 6.39 10–3 S cm–1, respectively, surpassing by over 5000 times under identical The partial alteration proton-conducting carriers from metal-water cluster [Co(H2O)6]·6H2O] metal-hydroxyl-water clusters [Cr(OH)4(H2O)2]·6H2O] (1-Cr) [Fe(OH)4(H2O)2]·6H2O] (1-Fe) be attributed for above-mentioned performance. introduction hydroxyl SC-SC establish interconnected conduction pathways within channels, greatly facilitate conduction, affording much lower activation energies (0.12 eV 1-Cr, 0.18 1-Fe, 0.28 1). This research demonstrated not only achieved improved but also contributed deeper understanding structure–property relationships, providing new insights into design advanced materials with conductivity.

Language: Английский

Post-synthetic modification strategy to immobilize acidic units within metal-organic frameworks or covalent organic frameworks for boosted proton conductivity

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 537, P. 216716 - 216716

Published: April 17, 2025

Language: Английский

Two water-rich amphiphilic and hydrophilc coordination polymers: syntheses, structures and proton conduction behaviors in Nafion composite membranes

CrystEngComm, Journal Year: 2024, Volume and Issue: 26(32), P. 4339 - 4349

Published: Jan. 1, 2024

Two amphiphilic and hydrophilic coordination compounds were obtained, which can be doped into Nafion membranes with different optimal amounts improve the proton conductivity of composite to degrees.

Language: Английский