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- W2019069481 endingPage "12016" @default.
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- W2019069481 abstract "FTIR spectroscopy combined with isotope labeling experiments and quantum chemical calculations is used to investigate the adsorption of carbon dioxide on hydroxylated metal oxide surfaces. In particular, transmission FTIR spectra following CO2 adsorption on hydroxylated nanoparticulate Fe2O3, alpha-Al2O3, and gamma-Al2O3 particles at 296 K are reported. As expected, reaction of CO2 with these surfaces results in the formation of adsorbed bicarbonate and carbonate. In this study, the vibrational spectrum of the bicarbonate product is analyzed in detail through the use of isotope labeling experiments and quantum chemical calculations. The experimental and calculated vibrational frequencies of adsorbed HC16O3-, DC16O3-, HC18O3-, HC16O18O2-, and HC18O16O2- indicate that bicarbonate bonds to the surface in a bridged structure. There is some evidence from the mixed isotope experiments that following initial nucleophilic attack of OH, the formation of the final bicarbonate structure involves a proton transfer. On the basis of energetic considerations, the proton transfer mechanism most likely occurs through an intermolecular process involving either coadsorbed hydroxyl groups and/or carbonate." @default.
- W2019069481 created "2016-06-24" @default.
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- W2019069481 creator A5053685425 @default.
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- W2019069481 date "2006-05-28" @default.
- W2019069481 modified "2023-10-10" @default.
- W2019069481 title "FTIR Spectroscopy Combined with Isotope Labeling and Quantum Chemical Calculations to Investigate Adsorbed Bicarbonate Formation Following Reaction of Carbon Dioxide with Surface Hydroxyl Groups on Fe<sub>2</sub>O<sub>3</sub> and Al<sub>2</sub>O<sub>3</sub>" @default.
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- W2019069481 doi "https://doi.org/10.1021/jp057437j" @default.
- W2019069481 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/16800509" @default.
- W2019069481 hasPublicationYear "2006" @default.
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