ic3001619_si_001.pdf (444 kB)
Homogeneous CO2 Reduction by Ni(cyclam) at a Glassy Carbon Electrode
journal contribution
posted on 2012-04-02, 00:00 authored by Jesse
D. Froehlich, Clifford P. KubiakThe homogeneous CO2 reduction activity of
several nickel
cyclam complexes was examined by cyclic voltammetry and controlled
potential electrolysis. CO production with high efficiency from unsubstituted
Ni(cyclam) was verified, while the activity was found to be attenuated
with methyl substitution of the amines on the cyclam ring. Reactivity
with CO2 was also probed using density functional theory
(DFT) calculations. The relative CO2 binding energies to
the NiI state obtained from DFT were found to match well
with the experimental results and shed light on the possible importance
of the isomeric form of Ni(cyclam) in determining the catalytic activity.