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- W4200141897 startingPage "106792" @default.
- W4200141897 abstract "Nowadays, the synthesis of crystalline solid materials with high proton conductivity, and excellent stability has become an important research topic. Bearing this in mind, we select a multifunctional organic ligand, 4-(2,4,6-tricarboxyphenyl)-2,2′,6,2″-terpyridine (H3tcp) that holds three carboxylate and three pyridine units to solvothermal prepare two one-dimensional MOFs, {[Cu(H1.5tcp)Cl0.5(H2O)0.5]·0.2H2O}n (1) and {[Cu(H2tcp) (H2O)]·1/2SO4·2H2O}n (2). Note that both the two MOFs contain a large amount of free carboxylate units and complicated H-bonded systems benefiting the proton transmission. AC impedance analyses demonstrated that their highest H2O-assisted proton conductivities (σ) could be 4.45 × 10−4 and 4.23 × 10−4 S cm−1 at 90 °C and 98% RH, respectively. Apparently, the high σ values are due to the efficient proton hopping across the H-bonding network built by the adsorbed H2O molecules and chemical composition such as, free –COOH and crystalline solvent units inside the frameworks. Furthermore, the lower Ea values of 1 (0.22 eV) and 2 (0.13 eV) under 98% RH confirm that the protons can effectively hop along the H-bonded networks. This research offers a new inspiration for the preparation of high proton conducting MOFs with free carboxylic groups." @default.
- W4200141897 created "2021-12-31" @default.
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- W4200141897 date "2022-01-01" @default.
- W4200141897 modified "2023-09-25" @default.
- W4200141897 title "Ligand design strategy to construct metal-organic frameworks with high-density carboxylic groups and high protonic conduction" @default.
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- W4200141897 doi "https://doi.org/10.1016/j.solidstatesciences.2021.106792" @default.
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