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

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

doi:10.1039/c4cp04871g

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

Gaia Neri
, James J. Walsh
, Calum Wilson
, Anna Reynal
, Jason Y.C. Lim
, Xiaoe Li
, Andrew J.P. White
, Nicholas J. Long
, James R. Durrant
, Alexander J. Cowan

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

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-tetraazacyclo-tetradecane-6-carboxylic acid)]²⁺ (2) is shown to be a very active electrocatalyst in solution.

Original language	English
Pages (from-to)	1562-1566
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	3
DOIs	https://doi.org/10.1039/c4cp04871g
Publication status	Published - 21 Jan 2015

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10.1039/c4cp04871g

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Neri, G., Walsh, J. J., Wilson, C., Reynal, A., Lim, J. Y. C., Li, X., White, A. J. P., Long, N. J., Durrant, J. R., & Cowan, A. J. (2015). A functionalised nickel cyclam catalyst for CO₂ reduction: Electrocatalysis, semiconductor surface immobilisation and light-driven electron transfer. Physical Chemistry Chemical Physics, 17(3), 1562-1566. https://doi.org/10.1039/c4cp04871g

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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-tetraazacyclo-tetradecane-6-carboxylic acid)]2+ (2) is shown to be a very active electrocatalyst in solution.",

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doi = "10.1039/c4cp04871g",

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AU - Wilson, Calum

AU - Reynal, Anna

AU - Lim, Jason Y.C.

AU - Li, Xiaoe

AU - White, Andrew J.P.

AU - Long, Nicholas J.

AU - Durrant, James R.

AU - Cowan, Alexander J.

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AB - 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-tetraazacyclo-tetradecane-6-carboxylic acid)]2+ (2) is shown to be a very active electrocatalyst in solution.

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JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

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ER -

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

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