Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 33, Pages 4116-4119Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc00718g
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Funding
- National Science Foundation [CHE-1461632]
- Air Force Office of Scientific Research [FA9550-13-1-0020, FA9550-17-0198]
- Internal Research and Technology Development program of the Jet Propulsion Laboratory, California Institute of Technology
- National Aeronautics and Space Administration
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1461632] Funding Source: National Science Foundation
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Surface modification of glassy carbon electrodes (GCEs) with molecular electrocatalysts is an important step towards developing more efficient heterogeneous CO2 reduction materials. Here, we report direct anodic electrografting of [Ni(alkynyl-cyclam)](2+) catalysts to the surface of GCEs in one simple step using inexpensive earth-abundant chemicals. When modified, these electrodes show reversible electrochemistry in organic solvents with zero peak-to-peak separations (E = 0) and non-diffusive I (V) profiles that are typical for heterogeneous redox materials. CPE of these electrodes showed enhanced formation of H-2 gas relative to CO compared to homogeneous catalysts.
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