A functionalised nickel cyclam catalyst for CO2 reduction: electrocatalysis, semiconductor surface immobilisation and light-driven electron transfer

作者：Neri Gaia; Walsh James J; Wilson Calum; Reynal Anna; Lim Jason Y C; Li Xiaoe; White Andrew J P; Long Nicholas J; Durrant James R; Cowan Alexander J^*

来源：Physical Chemistry Chemical Physics, 2015, 17(3): 1562-1566.

DOI：10.1039/c4cp04871g

The immobilisation of electrocatalysts for CO2 reduction onto light harvesting semiconductors is proposed to be an important step towards developing more efficient CO2 reduction photoelectrodes. Here, we report a low cost nickel cyclam complex covalently anchored to a metal oxide surface. Using transient spectroscopy we validate the role of surface immobilisation on enhancing the rate of photoelectron transfer. Furthermore [Ni(1,4,8,11-tetraazacyclotetradecane-6-carboxylic acid)](2+) (2) is shown to be a very active electrocatalyst in solution.

• 出版日期2015