摘要
Development of efficient molecular catalysts for photocatalytic CO2 reduction is desirable but challenging. At present, the majority of reported molecular catalysts consist of the transition metal centers coordinated by N-containing ligands. Inspired by the sulfur-containing active site found in carbon monoxide dehydrogenases, we here report a novel Ni-based molecular catalyst bearing 2,6-bis([(2-pyridinylmethyl)thio]methyl) pyridine as the pentadentate ligand. The product is assessed for photocatalytic CO2 reduction in acetonitrile/water solution using Ru(bpy)3Cl2 as the photosensitizer and triethanolamine as the electron donor.Under the optimal condition, a total of ca.25 μmol CO is produced after 7 h visible light irradiation with a large turnover number of 63 and high selectivity of 91%.
基金
This work was supported by the China Postdoctoral Science Foundation(2018M640518)
the Priority Academic Program Development of Jiangsu Higher Education Institutions and Collaborative Innovation Center of Suzhou Nano Science and Technology.
