Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.susc.2003.12.011
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dc.titleThe structures of physisorbed and chemisorbed formic acid on Si(1 1 1)-7 × 7
dc.contributor.authorHuang, J.Y.
dc.contributor.authorHuang, H.G.
dc.contributor.authorLin, K.Y.
dc.contributor.authorLiu, Q.P.
dc.contributor.authorSun, Y.M.
dc.contributor.authorXu, G.Q.
dc.date.accessioned2014-10-16T08:45:48Z
dc.date.available2014-10-16T08:45:48Z
dc.date.issued2004-02-01
dc.identifier.citationHuang, J.Y., Huang, H.G., Lin, K.Y., Liu, Q.P., Sun, Y.M., Xu, G.Q. (2004-02-01). The structures of physisorbed and chemisorbed formic acid on Si(1 1 1)-7 × 7. Surface Science 549 (3) : 255-264. ScholarBank@NUS Repository. https://doi.org/10.1016/j.susc.2003.12.011
dc.identifier.issn00396028
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/95265
dc.description.abstractThe reaction of formic acid on Si(1 1 1)-7 × 7 was investigated using X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS) and high-resolution electron energy loss spectroscopy (HREELS). The hydroxyl and carbonyl O 1s core levels of chemisorbed formic acid display chemical shifts of 2.4 and 0.2 eV respectively, compared with those of physisorbed molecules. The HREELS spectra of chemisorbed formic acid show the absence of stretching and bending modes of the O-H bond, the appearance of Si-H (2089 cm-1) and the Si-O (680 cm-1) stretching modes and the retained stretching mode of C=O at 1703 cm-1. Our results clearly suggest that formic acid dissociates to form monodentate formate species and H-atom on the adatom-rest atom pair of Si(1 1 1)-7 × 7. © 2003 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.susc.2003.12.011
dc.sourceScopus
dc.subjectCarboxylic acid
dc.subjectChemisorption
dc.subjectElectron energy loss spectroscopy (EELS)
dc.subjectPhotoelectron spectroscopy
dc.subjectPhysical adsorption
dc.subjectSilicon
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1016/j.susc.2003.12.011
dc.description.sourcetitleSurface Science
dc.description.volume549
dc.description.issue3
dc.description.page255-264
dc.description.codenSUSCA
dc.identifier.isiut000188387000009
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