Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 25 - 32
Опубликована: Окт. 30, 2024
Язык: Английский
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 25 - 32
Опубликована: Окт. 30, 2024
Язык: Английский
The Science of The Total Environment, Год журнала: 2024, Номер 921, С. 171099 - 171099
Опубликована: Фев. 21, 2024
Язык: Английский
Процитировано
65Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153049 - 153049
Опубликована: Июнь 12, 2024
Язык: Английский
Процитировано
24Inorganic Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Фев. 28, 2025
The directed regulation of proton transport pathways in conductors, facilitated by the well-defined crystal structures metal–organic frameworks (MOFs), is important for development advanced materials. In this study, MOF-808-2.5SO4-His synthesized progressive modification on framework using functional molecules. incorporation sulfate and imidazole groups into results a high conductivity 1.37 × 10–2 S cm–1 at 70 °C 98% relative humidity (RH). analysis temperature-dependent indicates that facilitates through Grotthuss mechanism RH temperature range 30–70 °C. Additionally, exhibits good cycling stability durability performance. This feasible approach enhances comprehension transfer promotes viable strategies controllable construction conductors.
Язык: Английский
Процитировано
1ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 3, 2025
Zirconium-based metal-organic frameworks (Zr-MOFs) have emerged as a promising class of crystalline porous materials, attracting significant interest in the field proton conduction due to their exceptional chemical stability, structural flexibility, and functional tunability. Notably, proton-conducting Zr-MOFs show immense potential for diverse advanced technological applications. In this Spotlight on Applications paper, we provide an overview spotlight recent progress utilization exchange membranes membrane fuel cells (PEMFCs), light-responsive systems pumps, sensors formic acid detection. Furthermore, also discussed challenges, future prospects, opportunities promoting application Zr-MOFs.
Язык: Английский
Процитировано
1Inorganic Chemistry, Год журнала: 2024, Номер 63(23), С. 10786 - 10797
Опубликована: Май 21, 2024
To date, developing crystalline proton-conductive metal–organic frameworks (MOFs) with an inherent excellent proton-conducting ability and structural stability has been a critical priority in addressing the technologies required for sustainable development energy storage. Bearing this mind, multifunctional organic ligand, 3,4-dimethylthiophene[2,3-b]thiophene-2,5-dicarboxylic acid (H2DTD), was employed to generate two exceptionally stable three-dimensional porous Zr/Hf MOFs, [Zr6O4(OH)4(DTD)6]·5DMF·H2O (Zr-DTD) [Hf6O4(OH)4(DTD)6]·4DMF·H2O (Hf-DTD), using solvothermal means. The presence of Zr6 or Hf6 nodes, strong Zr/Hf–O bonds, electrical influence methyl group, steric effect thiophene unit all contribute their throughout wide pH range as well water. Their proton conductivity fully examined at various relative humidities (RHs) temperatures. Creating intricate rich H-bonded networks between guest water molecules, coordination solvent thiophene-S, –COOH, –OH units within framework assisted transfer. As result, both MOFs manifest maximum 0.67 × 10–2 4.85 10–3 S·cm–1 under 98% RH/100 °C, making them top-performing Zr/Hf-MOFs. Finally, by combining characteristics activation energies, potential conduction pathways were identified.
Язык: Английский
Процитировано
8ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(26), С. 33865 - 33876
Опубликована: Июнь 21, 2024
Metal organic frameworks (MOFs) constructed with bismuth metal have not been widely reported, especially multifunctional Bi-MOFs. Therefore, developing MOFs is of great significance due to the increasing requirements materials. In this work, a 3D Bi-MOF (Bi-TCPE) multifunctionality was successfully constructed, demonstrating high thermal stability, water porous structure, and strong blue fluorescence emission. We evaluated properties Bi-TCPE in detecting anions (S2-, Cr2O72-, CrO42-) aqueous solution, along rapid visual detection H2S gas proton conduction. terms anion detection, achieved trace S2- solutions, while Ksv value 1.224 × 104 M-1 limit (LOD) 1.93 μM through titration experiments. Furthermore, could sensitively detect Cr2O72- CrO42-, values 1.144 1.066 M-1, respectively, LOD reached 2.07 2.18 μM. Subsequently, we conducted experiments, results indicated that selectively at extremely low concentrations (2.08 ppm) fast response time (<10 s). also observed significant color changes under both UV light sunlight. developed test paper for gas. Finally, conductivity Bi-TCPE, experimental showed 4.77 10-2 S·cm-1 98% RH 90 °C, achieving an excellent unmodified encapsulated MOFs. addition, stability conduction experiments (it remained stable after 21 consecutive days testing 12 cycles testing), relatively application value. These indicate MOF material potential.
Язык: Английский
Процитировано
7Small, Год журнала: 2024, Номер 20(46)
Опубликована: Авг. 10, 2024
Abstract The uneven formation of lithium dendrites during electroplating/stripping leads to a decrease in the utilization active lithium, resulting poor cycling stability and posing safety hazards battery. Herein, introducing 3D continuously interconnected zirconium‐based metal‐organic framework (MOF808) network into polyethylene oxide polymer matrix establishes synergistic mechanism for dendrite inhibition. MOF808 maintains its large pore structure, facilitating increased salt accommodation, expands anion adsorption at unsaturated metal sites through diverse large‐space cage thereby promoting flow Li + . Infrared‐Raman synchrotron small‐angle X‐ray scattering results demonstrate that transport behavior ion clusters MOF/polymer interface verifies local flux concentration, raising mobility number 0.42 ensuring uniform distribution, leading dendrite‐free homogeneous deposition. Furthermore, nanoindentation tests reveal high modulus elastic recovery MOF‐based electrolytes contribute forming robust, dendrite‐resistant interface. Consequently, symmetric battery systems, system exhibits minimal overpotential, merely 35 mV, while maintaining stable over 1800 h, achieving low–overpotential Moreover, it retains redox under voltages up 5.3 V.
Язык: Английский
Процитировано
7Journal of Membrane Science, Год журнала: 2025, Номер unknown, С. 123981 - 123981
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
1Bulletin of the Korean Chemical Society, Год журнала: 2023, Номер 45(2), С. 145 - 156
Опубликована: Ноя. 13, 2023
Abstract A myriad of metal ions and organic linkers can be used to produce metal–organic frameworks (MOFs) with varied functionalities, porosities, dimensionalities. Such diversity has garnered significant research interest, particularly in leveraging MOFs as proton conductors for fuel cells. One effective approach involves introducing guest molecules into MOF pores. These serve either carriers or proton‐conducting media through potential hydrogen bonding networks. This review offers an organized overview key methodologies historically employed achieve superprotonic conductivity MOFs. The article systematically categorizes these tactics three primary groups: molecule encapsulation, modulation at metal‐coordination sites, ligand functionalization. We succinctly discuss the roles carriers, conducting media, overall framework, emphasizing significance each strategy's application. In conclusion, we provide insights future development conductors, rooted categorization conceptual understanding strategies.
Язык: Английский
Процитировано
15Chemical Engineering Journal, Год журнала: 2023, Номер 480, С. 148146 - 148146
Опубликована: Дек. 16, 2023
Язык: Английский
Процитировано
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