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A 3D chemically stable MOF of {[Cd1.5(DBPT)(DiPyDz)(H2O)]·3.5H2O}n (1) was successfully synthesized by a hydrothermal process, with the help of multifunctional ligand of H3DBPT (3-(3,5-dicarboxylphenyl)-5-(4-carboxylphenyl)-1-H-1,2,4-triazole) and bridging ligand of 1,2-di(pyridine-4-yl)diazene (DiPyDz). Characterizations of PXRD, FT-IR, TG and PL analysis for compound 1 were implemented. The overall structure maintains thermally stable up to 354 °C and keeps structural stability in common solvents after 48 h immersion. Most strikingly, it could maintain the crystallinity in water even for 10 days. It exhibits strong emission peak centered at 412 nm upon excitation at 280 nm, which could be attributed to the intra-ligand charge transfer of the H3DBPT ligand. It has proved itself an efficient sensor not only for acetone at low concentration but also for Fe3+ ion. The detection limit is estimated to be 0.0013% (v/v%) for the acetone, and 78 ppb for the Fe3+ ion, respectively. The KSV value for sensing Fe3+ ion is calculated to be 4.78 × 105 M−1, which is the third top one among the reported excellent MOFs-based sensors. The sensing performance is not affected even in the existence of interference metal ions, which reflects the high application potentials for the effective detection of Fe3+ in an aqueous system. [ABSTRACT FROM AUTHOR]

In this study, the hydrogen desorption properties for the reactions between 1 mol% MNH-added (M = Li, Na, and K) lithium hydride and NH (0.5 MPa, NH/LiH = 1 mol/mol) at 100 °C were systematically investigated to design a LiH-NH hydrogen storage system with better kinetic properties. It is found that all of the alkali metal amide additives can improve the hydrogen desorption kinetics of the LiH-NH system, among which, LiNH shows the best effect. As compared to the other LiNH-added composition, the 1 mol% LiNH-added composition shows the best effect on improving the desorption kinetics of the LiH-NH system. According to the kinetic analysis, it is proposed that the effect of LiNH on the hydrogen desorption kinetics would be mainly due to physical effect. [ABSTRACT FROM AUTHOR]

A new 2D network formulated as [TBA][HPMoMoOZn][CH(COO)] ( 1) containing linear inorganic chain {ε-HPMoMoOZn} has been synthesized and structurally characterized by FT-IR, thermal analysis, single crystal and powder X-ray diffraction. Compound 1 shows remarkable electrocatalytic activity towards bromate reduction, nitrite reduction and ascorbic acid oxidation. Moreover, the proton conduction behavior of 1 has also been investigated. [ABSTRACT FROM AUTHOR]

By introducing a bridging ligand of 5-methylisophthalic acid (shortened as 5-mip) into the tetrahedral Zn-ε-Keggin system, a new 2D network of [TBA][HPMoMoOZn][CH(COO)] ( 1) was synthesized under hydrothermal condition. It was characterized by FT-IR, BET, TGA/DSC-MASS analysis, powder X-ray diffraction and single-crystal X-ray diffraction, respectively. Besides, compound 1 shows remarkable electrocatalytic activity towards bromate reduction. [ABSTRACT FROM AUTHOR]