Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 49, Pages 18288-18291Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja4099609
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Funding
- NSF CCI Solar Fuels Program [CHE-1305124]
- CCI Postdoctoral Fellowship
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We show that molecular catalysts for fuel-forming reactions can be immobilized on graphitic carbon electrode surfaces via noncovalent interactions. A pyrene-appended bipyridine ligand (P) serves as the linker between each complex and the surface. Immobilization of a rhodium proton-reduction catalyst, [Cp*Rh(P)Cl]Cl (1), and a rhenium CO2-reduction catalyst, Re(P)(CO)(3)Cl (2), afford electrocatalytically active assemblies. X-ray photoelectron spectroscopy and electrochemistry confirm catalyst immobilization. Reduction of 1 in the presence of p-toluenesulfonic acid results in catalytic H-2 production, while reduction of 2 in the presence of CO2 results in catalytic CO production.
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