pH-Dependent Structural Engineering of Sulfonate-Carboxylate Cu-MOFs for High Proton Conductivity DOI
Shiyu Wei, Tingting Cui, Shunlin Zhang

et al.

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

Published: April 23, 2025

Metal-organic frameworks (MOFs) with free carboxylic acid (COOH) groups are promising for solid-state proton-conducting materials, owing to the Brønsted acidity, polarity, and hydrogen-bonding ability of COOH groups. In this work, two Cu-MOFs different dimensions were synthesized by adjusting pH reaction solution using disodium-2,2'-disulfonate-4,4'-oxidibenzoic (Na2H2DSOA) 4,4'-bipyridine (4,4'-bpy) as ligands coordinate Cu(II). The resulting compounds, CuDSOA-1 (([Cu(4,4'-bpy)2(H2O)2][Cu(H2DSOA)2(4,4'-bpy)(H2O)2]·12H2O)) CuDSOA-2 ([Cu2(DSOA)(4,4'-bpy)2(H2O)2]·4H2O), have distinct dimensionalities structures, mainly due pH's effect on deprotonation. Notably, abundant groups, uncoordinated sulfonate water molecules shows a significantly enhanced proton conductivity 2.46 × 10-2 S cm-1 at 95 °C 98% RH, surpassing (3.40 10-5 85 RH). mechanism was found be Grotthuss mechanism, confirmed deuterium-hydrogen isotopic effects. This study offers method control coordination sulfonic-carboxylic Cu(II) adjustment, aiming create MOFs ultrahigh conductivity.

Language: Английский

Direct Laser Scribing of All‐Solid‐State In‐Plane Proton Microsupercapacitors on Ionic Covalent Organic Framework Films DOI Open Access
X Li, Dong‐Dong Han,

Ye‐Can Zhang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Proton microsupercapacitors (MSCs) are promising energy storage devices for cutting‐edge applications. However, all‐solid‐state designs face challenges due to the need synergistic innovations in electrolytes, electrodes, and interface engineering. Herein, direct laser scribing of metal‐free in‐plane proton MSCs reported on ionic covalent organic framework (iCOF) films. The solid‐state AA‐stacked iCOF electrolytes with perfect 2D channels ( d = 0.33 nm) prepared by vacuum filtration, exhibiting conductivities from 0.23 4.7 mS cm −1 depending humidity. Furthermore, patterned carbon electrodes fabricated via situ carbonization iCOFs, forming a seamless electrolyte‒electrode interface. To reveal photophysical features insulating iCOFs conductive laser‐treated femtosecond transient absorption experiments carried out. multiphysics simulation indicates that electric field is uniformly distributed at electrode−electrolyte Notably, resulting MSC exhibits an ultrahigh specific capacitance (≈10.13 mF −2 101.3 F −3 ), high volumetric density (2.52 mWh rapid scan rate (1000 mV s excellent cycling stability (no degradation after 50 000 cycles). This approach provides high‐performance MSCs, revealing great potential applications intelligent microsystems.

Language: Английский

Citations

2
Dual-Acid-Tailored Ionic Covalent Organic Frameworks for High-Temperature Proton Conduction under Anhydrous Conditions and the Practical Opportunities DOI
Vellaichamy Joseph, Keiichiro Maegawa, Mateusz Wlazło

et al.

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

Citations

0
A 2D microporous ‘flexible-robust’ MOF for efficient natural gas purification with C2s/CH4 and CO2/CH4 separations DOI
Shyam Chand Pal,

Janaki Behera,

Tengfei Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162121 - 162121

Published: March 1, 2025

Language: Английский

Citations

0
Amine-Functionalized Metal–Organic Frameworks for Highly Selective and Sensitive Detection of Salicylaldehyde DOI
Xueting Huang,

Lin Yuan,

Wenjing Wang

et al.

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Language: Английский

Citations

0
Post-synthetic modification strategy to immobilize acidic units within metal-organic frameworks or covalent organic frameworks for boosted proton conductivity DOI
Hailiang Hu, Xia Yu, Xin Wang

et al.

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

Published: April 17, 2025

Language: Английский

Citations

0
pH-Dependent Structural Engineering of Sulfonate-Carboxylate Cu-MOFs for High Proton Conductivity DOI
Shiyu Wei, Tingting Cui, Shunlin Zhang

et al.

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

Published: April 23, 2025

Metal-organic frameworks (MOFs) with free carboxylic acid (COOH) groups are promising for solid-state proton-conducting materials, owing to the Brønsted acidity, polarity, and hydrogen-bonding ability of COOH groups. In this work, two Cu-MOFs different dimensions were synthesized by adjusting pH reaction solution using disodium-2,2'-disulfonate-4,4'-oxidibenzoic (Na2H2DSOA) 4,4'-bipyridine (4,4'-bpy) as ligands coordinate Cu(II). The resulting compounds, CuDSOA-1 (([Cu(4,4'-bpy)2(H2O)2][Cu(H2DSOA)2(4,4'-bpy)(H2O)2]·12H2O)) CuDSOA-2 ([Cu2(DSOA)(4,4'-bpy)2(H2O)2]·4H2O), have distinct dimensionalities structures, mainly due pH's effect on deprotonation. Notably, abundant groups, uncoordinated sulfonate water molecules shows a significantly enhanced proton conductivity 2.46 × 10-2 S cm-1 at 95 °C 98% RH, surpassing (3.40 10-5 85 RH). mechanism was found be Grotthuss mechanism, confirmed deuterium-hydrogen isotopic effects. This study offers method control coordination sulfonic-carboxylic Cu(II) adjustment, aiming create MOFs ultrahigh conductivity.

Language: Английский

Citations

0