Hou Yujiao, Han Peilin, Li Hao, Zhang Shixing, Qin Mengge, Zhang Nan, Fu Bingbing, Mao Ruitao, Ge Suxiang
College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, P. R. China.
Dalton Trans. 2024 Jan 23;53(4):1541-1550. doi: 10.1039/d3dt03650b.
Developing novel high-efficiency supercapacitors as energy storage devices to solve the energy crisis is of vital significance. Meanwhile, designing highly active and selective oxidation catalysts for various sulfides is desirable but still a big challenge. To work out these problems, three novel 3D POM-based coordination polymers (POMCPs), formulated as [{Ag(pytz)}{SiMoO}] (1), [{Cu(pytz)}{SiMoO}]·5.5HO (2) and [{Cu(pytz)}{SiMoO}]·2HO (3) (pytz = 4-(5-(4-pyridyl)-1-tetrazole)), are successfully prepared a one-step synthetic strategy by changing different temperatures under hydrothermal or solvothermal conditions. In compounds 1 and 2, {SiMo}, as 9-capped and 2-capped polyoxoanions, are engaged among the 2D Ag/Cu-organic sheets to generate the novel 3D POM-based coordination polymers. In addition, 1D Cu-organic chains are combined with 3-capped {SiMo} polyoxoanions to construct 2D POM-based coordination polymers in 3. To our delight, as electrode materials for supercapacitors, the three compounds exhibit excellent specific capacitances of 261.76 F g, 248.82 F g and 156.47 F g at 0.5 A g, respectively. Besides, they can effectively and selectively catalyze the oxidation of various sulfides to sulfoxides.
