title: A functionalised nickel cyclam catalyst for CO₂ reduction: electrocatalysis, semiconductor surface immobilisation and light-driven electron transfer.
abstract: 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.
authors.affiliation: Department of Chemistry, Stephenson Institute for Renewable Energy, The University of Liverpool, L69 7ZF, UK. a.j.cowan@liverpool.ac.uk.
authors.forename: Gaia
authors.initials: G
authors.lastname: Neri
authors.forename: James J
authors.initials: JJ
authors.lastname: Walsh
authors.forename: Calum
authors.initials: C
authors.lastname: Wilson
authors.forename: Anna
authors.initials: A
authors.lastname: Reynal
authors.forename: Jason Y C
authors.initials: JY
authors.lastname: Lim
authors.forename: Xiaoe
authors.initials: X
authors.lastname: Li
authors.forename: Andrew J P
authors.initials: AJ
authors.lastname: White
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Long
authors.forename: James R
authors.initials: JR
authors.lastname: Durrant
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Cowan