Six polyoxotungstate-based transition metal compounds for electrochemical capacitor application and a comparative analysis of factors affecting capacitances

Abstract

Six different polyoxotungstate-based transition metal complexes were synthesized, namely [Cu5(2,2’-bpy)5(μ2-Cl)2(PO4)2(H2O)2][HPW12O40]·2H2O (1), [Cu1.5(2,2-bpy)1.5(inic)2(H2O)1.5]3[H1.5PW12O40]2·16.25H2O (2), [Cu(2,2’-bpy)2]2[SiW12O40]·10H2O (3), [Zn(phen)3]2[PW12O40]·5H2O (4), [Zn(phen)2(H2O)]2[SiW12O40]·2H2O (5), and [Zn(2,2’-bpy)2]2[SiW12O40] (6). Compound 1 is based on [HPW12O40]2- anions, which...

Effective oxygen activation on polyoxometalate-based hybrids for epoxidation of alkenes

“…12–15 Among them, POMs can serve as an inorganic building block, interacting with functional organic moieties and desired transition metals (TMs) through coordination or hydrogen bonding. 16–19 POM-based inorganic–organic hybrids, as a type of heterogeneous catalyst, break the abovementioned limits. At the same time, they possess high stability and diverse structures and are frequently employed in various catalytic reactions.…”