Heterojunctions of silver-iron oxide on graphene for laser-coupled oxygen reduction reactions
College of Science
We report a two-step hybridization of N-doped graphene and Ag-decorated Fe2O3 hematite to realize a balanced oxygen adsorption/desorption equilibrium and a laser-coupled ORR (LORR). The stable plateau currents with n values of 3.9 in a wide potential range (0.2-0.7 V) and 7.5% peroxide inhibition of the LORR are found to be directly associated with the Ag/Fe2O3 heterojunction, where interactions of semiconductor band gap excitation and plasmonic resonance-induced hot electrons are proposed to occur. © 2018 The Royal Society of Chemistry.
Digitial Object Identifier (DOI)
Chen, W., Chung, M., Valinton, J. A., Penaloza, D. P., Chuang, S., & Chen, C. (2018). Heterojunctions of silver-iron oxide on graphene for laser-coupled oxygen reduction reactions. Chemical Communications, 54 (57), 7900-7903. https://doi.org/10.1039/c8cc03136c
Iron oxides; Oxygen--Absorption and adsorption