Adsorption and Dissociation of CO2 on Ru(0001) | Zendy

Malgorzata Pachecka | Zendy; Jacobus Marinus Sturm | Zendy; Chris Lee | Zendy; F. Bijkerk | Zendy

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Adsorption and Dissociation of CO₂ on Ru(0001)

Author(s) -

Malgorzata Pachecka,

Jacobus Marinus Sturm,

Chris Lee,

F. Bijkerk

Publication year - 2017

Publication title -

the journal of physical chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.401

H-Index - 289

eISSN - 1932-7455

pISSN - 1932-7447

DOI - 10.1021/acs.jpcc.7b00021

Subject(s) - dissociation (chemistry) , chemisorption , adsorption , infrared spectroscopy , desorption , chemistry , thermal desorption spectroscopy , spectroscopy , carbon monoxide , ruthenium , single crystal , infrared , analytical chemistry (journal) , absorption spectroscopy , photochemistry , crystallography , catalysis , biochemistry , physics , organic chemistry , quantum mechanics , chromatography , optics

The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO 2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO 2 on a Ru(0001) single crystal is partially dissociative, resulting in CO 2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.

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