Journal
CCS CHEMISTRY
Volume 5, Issue 1, Pages 245-256Publisher
CHINESE CHEMICAL SOC
DOI: 10.31635/ccschem.022.202101668
Keywords
water oxidation; proton-coupled electron transfer; nickel catalyst; artificial photosynthesis; O-O bond formation
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In this study, a molecular trinuclear nickel (TNC-Ni) catalyst for water oxidation was reported. The catalyst exhibited high catalytic performance and stability under neutral conditions (pH 7). The cooperation among the three nickel sites was found to play a vital role in charge accumulation and O-O bond formation.
We report a molecular trinuclear nickel (TNC-Ni) catalyst for water oxidation that exhibited high catalytic performance and stability under neutral conditions (pH 7). Electrochemical studies disclosed that cooperation among the three nickel sites plays a vital role in both charge accumulation and O-O bond formation. This TNC-Ni catalyst could accomplish 4e(-) oxidation of water by involving all three nickel sites and the O-O bond formation was triggered by a charge distribution process from 5 to 5dp via proton-coupled electron transfer.
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