Jun-Jun Sun,Wei Li,Fen-Fen Ma,Jian-Liang Cao,Hui-Jun Li,Yan Wang
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引用次数: 0
Abstract
Polyoxometalate-derived photocatalysts with unique semiconductor-like performance and abundant catalytic sites are promising in photocatalysis. However, the cumbersome synthesis steps and complex structures of polyoxometalate-based compound carriers for photocatalysis pose significant challenges. In this study, we report two isostructural polyoxometalate-derived photocatalysts [M(H2O)4(TeMo6O24)][M(Hpca)(H2O)5]2 · 6H2O [M = Co (1), Zn (2)], in situ synthesized via iso-nicotinic acid (pca) as the organic ligand and Anderson-type polyoxometalate [TeMo6O24]6- as the inorganic block, which enable heterogeneous photocatalytic H2 production (3207.1 μmol g-1 h-1), far superior to most reported polyoxometalate-based heterogeneous systems. Moreover, compound 1, as a photocatalyst, displays excellent photocatalytic recyclability and stability. Density functional theory calculation reveals that the presence of the cobalt(II) ligand facilitates the H2 evolution reactions process, and the incorporation of M(Hpca)(H2O)5 further promotes the reaction. This work presents a versatile strategy for designing advanced polyoxometalate-based photocatalysts for sustainable photocatalytic H2 generation.
期刊介绍:
Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.