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Updated: Nov 30, 2025
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Preadsorption Effect of Carbon Monoxide on Reactivity of Cobalt Cluster Cations toward Hydrogen
Masashi Arakawa1, Daichi Okada1, Satoshi Kono1
1Department of Chemistry, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
Abstract:
We report gas-phase reactions of free Co(CO)+ (n = 3-11, m = 0-2) with H2, expecting a catalytic reaction of coadsorbed CO and H2 on Co+. Preadsorption of CO molecules is found to promote H2 adsorption, in particular, on Co(CO)+ (n = 5, 8-10). Density functional theory (DFT) calculations reveal that the reactivity is governed by the molecular-orbital energy of Co+, which is tuned by preadsorbed CO molecules. Collision-induced-dissociation experiments performed on CoCOH2+ (n = 8-10) imply that at least some of the CO and H2 molecules are bound together on Co+.
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