Noncovalent immobilization of electrocatalysts on carbon electrodes for fuel production.

Abstract

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)3Cl (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 H2 production, while reduction of 2 in the presence of CO2 results in catalytic CO production.

DOI: 10.1021/ja4099609

Cite this paper

@article{Blakemore2013NoncovalentIO, title={Noncovalent immobilization of electrocatalysts on carbon electrodes for fuel production.}, author={James D Blakemore and Ayush Gupta and Jeffrey J. Warren and Bruce S Brunschwig and Harry B. Gray}, journal={Journal of the American Chemical Society}, year={2013}, volume={135 49}, pages={18288-91} }