Department of Chemistry, School of Science , Tokyo Institute of Technology , O-okayama 2-12-1-NE-1 , Meguro-ku , Tokyo 152-8550 , Japan.
ACS Appl Mater Interfaces. 2019 Feb 13;11(6):5632-5641. doi: 10.1021/acsami.8b05495. Epub 2018 Jun 19.
A Ru(II)-Re(I) supramolecular photocatalyst and a Ru(II) redox photosensitizer were both deposited successfully on a NiO electrode by using methyl phosphonic acid anchoring groups and the electrochemical polymerization of the ligand vinyl groups of the complexes. This new molecular photocathode, poly-RuRe/NiO, adsorbed a larger amount of the metal complexes compared to one using only methyl phosphonic acid anchor groups, and the stability of the complexes on the NiO electrode were much improved. The poly-RuRe/NiO acted as a photocathode for the photocatalytic reduction of CO at E = -0.7 V vs Ag/AgCl under visible-light irradiation in an aqueous solution. The poly-RuRe/NiO produced approximately 2.5 times more CO, and its total Faradaic efficiency of the reduction products improved from 57 to 85%.
通过使用甲基膦酸锚固基团和配合物的配体乙烯基基团的电化学聚合，成功地将 Ru(II)-Re(I) 超分子光催化剂和 Ru(II) 氧化还原光敏剂都沉积在 NiO 电极上。这种新型分子光阴极，聚-RuRe/NiO，与仅使用甲基膦酸锚固基团相比，吸附了更多的金属配合物，并且配合物在 NiO 电极上的稳定性得到了很大提高。聚-RuRe/NiO 在可见光照射下，在 E = -0.7 V 相对于 Ag/AgCl 作为 CO 的光催化还原的光阴极，在水溶液中进行。聚-RuRe/NiO 产生的 CO 大约多 2.5 倍，其还原产物的总法拉第效率从 57%提高到 85%。
