Abstract
Electrocatalytic reduction of CO2 occurred efficiently using a glassy carbon electrode modified with a cobalt(II) chlorin complex adsorbed on multi-walled carbon nanotubes at an applied potential of -1.1 V vs. NHE to yield CO with a Faradaic efficiency of 89% with hydrogen production accounting for the remaining 11% at pH 4.6.
Highlights
Electrocatalytic reduction of CO2 occurred efficiently using a glassy carbon electrode modified with a cobalt(II) chlorin complex adsorbed on multi-walled carbon nanotubes at an applied potential of À1.1 V vs. NHE to yield CO with a Faradaic efficiency of 89% with hydrogen production accounting for the remaining 11% at pH 4.6
We report the selective electrocatalytic reduction of CO2 to CO using a glassy carbon electrode modified with a cobalt(II) chlorin complex (CoII(Ch): a chemical structure shown in Scheme 1) adsorbed on carbon nanotubes in water
The CoII(Ch)-modified electrode was prepared by drop casting a sonicated acetonitrile (MeCN) solution containing CoII(Ch) (1.0 mM), multi-walled carbon nanotubes (MWCNTs: 1.3 mg) as a support material and 5% Nafion (12 mL) as a proton exchange membrane and stabilization agent of CoII(Ch) on MWCNTs to a glassy carbon electrode
Summary
Electrocatalytic reduction of CO2 occurred efficiently using a glassy carbon electrode modified with a cobalt(II) chlorin complex adsorbed on multi-walled carbon nanotubes at an applied potential of À1.1 V vs. NHE to yield CO with a Faradaic efficiency of 89% with hydrogen production accounting for the remaining 11% at pH 4.6.
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