title: [Abnormal infrared effects (AIREs) of nm-Ru/GC electrode towards CO adsorption in alkaline solutions].
abstract: The adsorption of CO on electrode of nanometer thin film of Ru in 0.1 mol.L-1 NaOH solution was studied by using in-situ FTIR spectroscopy. The results revealed that the adsorbed CO in alkaline solutions is mainly in linear bonded from that yields IR absorption at around 1,960 cm-1, and a small portion of bridge bonded CO was also determined near 1,780 cm-1. The band centers of COL and COB have been red-shifted respectively about 50 and 60 cm-1 in comparison with the values measured in acid medium. The enhancement factor of IR absorption of CO on nm-Ru/GC electrode has been measured at 33 in 0.1 mol.L-1 NaOH solution, which is more than 2 times larger than the value determined in a 0.1 MH2SO4 solution.
authors.affiliation: State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Institute of Physical Chemistry, Xiamen University, 361005 Xiamen.
authors.forename: M
authors.initials: M
authors.lastname: Zheng
authors.forename: S
authors.initials: S
authors.lastname: Chen
authors.forename: S
authors.initials: S
authors.lastname: Sun