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Bioinspired cobalt cubanes with tunable redox potentials for photocatalytic water oxidation and CO2 reduction.


ABSTRACT: The development of efficient, robust and earth-abundant catalysts for photocatalytic conversions has been the Achilles' heel of solar energy utilization. Here, we report on a chemical approach based on ligand designed architectures to fabricate unique structural molecular catalysts coupled with appropriate light harvesters (e.g., carbon nitride and Ru(bpy)32+) for photoredox reactions. The "Co4O4" cubane complex Co4O4(CO2Me)4(RNC5H4)4 (R = CN, Br, H, Me, OMe), serves as a molecular catalyst for the efficient and stable photocatalytic water oxidation and CO2 reduction. A comprehensive structure-function analysis emerged herein, highlights the regulation of electronic characteristics for a molecular catalyst by selective ligand modification. This work demonstrates a modulation method for fabricating effective, stable and earth-abundant molecular catalysts, which might facilitate further innovation in the function-led design and synthesis of cubane clusters for photoredox reactions.

SUBMITTER: Luo Z 

PROVIDER: S-EPMC6142774 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Bioinspired cobalt cubanes with tunable redox potentials for photocatalytic water oxidation and CO<sub>2</sub> reduction.

Luo Zhishan Z   Hou Yidong Y   Zhang Jinshui J   Wang Sibo S   Wang Xinchen X  

Beilstein journal of organic chemistry 20180905


The development of efficient, robust and earth-abundant catalysts for photocatalytic conversions has been the Achilles' heel of solar energy utilization. Here, we report on a chemical approach based on ligand designed architectures to fabricate unique structural molecular catalysts coupled with appropriate light harvesters (e.g., carbon nitride and Ru(bpy)<sub>3</sub><sup>2+</sup>) for photoredox reactions. The "Co<sub>4</sub>O<sub>4</sub>" cubane complex Co<sub>4</sub>O<sub>4</sub>(CO<sub>2</su  ...[more]

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