Mononuclear ruthenium (II) complex covalently anchored on melem and g-CN as efficient heterogeneous catalysts for chemical water oxidation.

J Colloid Interface Sci

State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. Electronic address:

Published: August 2023

Ru-melem and Ru-CN were synthesized by a simple and facile strategy to construct a novel covalently anchoring by introducing easily synthesized amide bond as a bridge connecting the Ru-terpy and melem or g-CN, respectively. The covalent anchoring of Ru complex on melem or CN not only makes these materials exhibit water oxidation activity under Ce-driven (Ce = Ce(NH)(NO)) reaction condition, but also makes the obtained heterogeneous catalysts show higher catalytic activity than the corresponding homogeneous catalysts, which reveals that the covalent anchoring strategy of Ru complex is beneficial to improve the catalytic activity of homogeneous Ru catalysts. The synthetic method of hybrid catalysts offers an insightful strategy for enhancing water oxidation activity of molecular catalysts.

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http://dx.doi.org/10.1016/j.jcis.2023.04.053DOI Listing

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