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Highly Dispersed Polyoxometalate‐Doped Porous Co 3 O 4 Water Oxidation Photocatalysts Derived from POM@MOF Crystalline Materials
Author(s) -
Lan Qing,
Zhang ZhiMing,
Qin Chao,
Wang XinLong,
Li YangGuang,
Tan HuaQiao,
Wang EnBo
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201602127
Subject(s) - polyoxometalate , materials science , nanoporous , photocatalysis , oxide , nanostructure , catalysis , chemical engineering , composite number , doping , transition metal , nanocrystal , cluster (spacecraft) , vanadium oxide , porosity , nanotechnology , inorganic chemistry , chemistry , composite material , organic chemistry , optoelectronics , metallurgy , computer science , engineering , programming language
Abstract Rational design of earth‐abundant photocatalysts is an important issue for solar energy conversion and storage. Polyoxometalate (POM)@Co 3 O 4 composites doped with highly dispersive molecular metal–oxo clusters, synthesized by loading a single Keggin‐type POM cluster into each confined space of a metal–organic framework (MOF), exhibit significantly improved photocatalytic activity in water oxidation compared to the pure MOF‐derived nanostructure. The systematic synthesis of these composite nanocrystals allows the conditions to be tuned, and their respective water oxidation catalytic performance can be efficiently adjusted by varying the thermal treatment temperature and the feeding amount of the POM. This work not only provides a modular and tunable synthetic strategy for preparing molecular cluster@TM oxide (TM=transition metal) nanostructures, but also showcases a universal strategy that is applicable to design and construct multifunctional nanoporous metal oxide composite materials.