Bulletin of the Korean Chemical Society

  • 제22권3호
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  • Pages.267-270
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  • 2001
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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STM Observation of Pt{111}(3$\times$3)-CI and c(4$\times$2)-CI Structures

  • Song, M.B.
  • 발행 : 20010300
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초록

The adsorption of chlorine on a Pt(111) surface at 90 K has been studied using scanning tunneling microscopy (STM) in ultra-high vacuum environments. The adsorbed chlorine atoms give rise to two different ordered structures, (3${\times}$3)-Cl and c(4${\times}$2)- Cl, depending on the coverage. It has been determined from the STM image that the absolute coverage of (3${\times}$3)-Cl structure is 0.44, which is not in agreement with coverage calibrated by a low energy electron diffraction technique together with an Auger electron spectrometer and a thermal desorption spectrometer. The Cl atoms bound to on-top sites at the Pt(111)(3${\times}$3)-Cl surface appeared to effectively perturb the density of states of Pt atoms, as compared with that bound to bridging sites. The other ordered structure, c(4${\times}$2)-Cl, with small domain sizes, consists of both on-top and bridge-bonded species with a saturation coverage of 0.5.

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참고문헌

  1. Prog. Surf. Sci. v.27 no.25 Jones, R. G.
  2. Phys. Rev. v.B55 no.7954 Lucas, C. A.;Markovic, N. M.;Ross, P. N.
  3. J. Am. Chem. Soc. v.112 no.3677 Yau, S. -L.;Vitus, C. M.;Schardt, B. C.
  4. Science v.243 no.1050 Schardt, B. C.;Yau, S. -L.;Rinaldi, F.
  5. Surf. Sci. v.100 no.613 Farrell, H. H.
  6. Surf. Sci. v.261 no.111 Jo, S. K.;White, J. M.
  7. J. Phys. Chem. v.95 no.4787 Chang, S. -C.;Yau, S.-L.;Schardt, B. C.;Weaver, M. J.
  8. J. Electroanal. Chem. v.396 no.125 Tanaka, S.;Yau, S. -I;Itaya, K.
  9. Surf. Sci. v.83 no.431 Bertel, E.;Schwaha, K.;Netzer, F. P.
  10. Surf. Sci. v.216 no.361 Wagner, F. T.;Moylan, T. E.
  11. J. Phys. Chem. v.100 no.19502 Villegas, I.;Weaver, M. J.
  12. Surf. Sci. v.94 no.281 Erley, W.
  13. Surf. Sci. v.380 no.9 Schennach, R.;Bechtold, E.
  14. Chem. Phys. Letts. v.263 no.585 Song, M. -B.;Yoshimi, K.;Ito, M.
  15. Surf. Sci. v.318 no.289 Schmid, M.;Biedermann, A.;Bohmig, S. D.;Weigand, P.;Varga, P.
  16. Jpn. J. Appl. Phys. v.36 no.L1528 Song, M. -B.;Momoi, K.;Ito, M.
  17. Spectroscopy of Surfaces v.16 Creighton, J. A.;Clark, R. J.(Eds.);Hester, R. E.(Eds.)
  18. Surf. Sci. v.370 no.32 Nakamura, C. Y.;Altman, E. I.
  19. Surf. Sci. v.426 no.212 Fishlock, T. W.;Pethica, J. B.;Oral, A.;Egdell, R. G.;Jones , F. H.
  20. The Chemical Physics of Solid Surfaces and Heterogeneous Catalysis v.3B Farrel, H. H.;King, D. A.(Eds.);Woodruff, D. P.(Eds.)
  21. Surf. Sci. v.406 no.90 Gieβel, T.;Schaff, O.;Hirschmugl, C. J.;Fernandez, V.;Schindler, K. -M.;Theobald, A.;Bao, S.;Lindsay, R.;Berndt, W.;Bradshaw, A. M.;Baddeley, C.;Lee, A. F.;Lambert, R. M.;Woodruff, D. P.
  22. CRC Handbook of Chemistry and Physics, 67th Ed. Weast, R. C.

피인용 문헌

  1. Thermal dechlorination and dehydrogenation pathways for ortho-, meta-, and para-chlorotoluene on the Pt(111) surface: C-Cl bond activation by methyl vol.602, pp.10, 2008, https://doi.org/10.1016/j.susc.2008.03.027
  2. A DFT study of chlorine coverage over late transition metals and its implication on 1,2-dichloroethane hydrodechlorination vol.8, pp.6, 2018, https://doi.org/10.1039/c7cy02647a