Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Chemisorption of Carbon Monoxide on Silica-Supported Rhodium

  • Jo Woong Lee (Department of Chemistry, College of Natural Sciences, Seoul National University) ;
  • Seihun Chang (Department of Chemistry, College of Natural Sciences, Seoul National University) ;
  • Won-Il Chung (Department of Chemistry, College of Natural Sciences, Seoul National University)
  • Published : 1989.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

We have investigated the infrared absorption spectra for carbon monoxide chemisorbed on reduced and oxidized Rh/$SiO_2$ with and without potassium coating within the frequency range of 1800-2200 $cm^{-1}$ at various Rh concentrations, CO pressures, and temperatures. In case of no potassium coating, only two bands at 2070 and 1900 $cm^{-1}$ appeared for CO adsorbed on reduced Rh/$SiO_2$ while for oxidized Rh/$SiO_2$ four bands were found at 2100, 2070, 2040, and 1900 $cm^{-1}$. We have successfully tried to explain the differences between our observations and those by other investigators who used the Rh/$Al_2O_3$ system instead of Rh/$SiO_2$ on the basis of the suggestions by Yates et al. Accordingly, we propose that the surface OH groups are deeply involved in producing the $Rh^{+1}$ sites which are responsible for the gem-dicarbonyl species. On coating with potassium all the IR bands for three carbonyl species were found to suffer red shift, the magnitude of which increased with increasing Rh/CO ratio.

Keywords

References

  1. J. Phys. Chem. v.61 A. C. Yang;G. W. Garland
  2. J. Chem. Phys. v.70 J. T. Yates;T. M. Duncan;S. D. Worley;R. W. Vaughan
  3. J. Chem. Phys. v.71 J. T. Yates;T. M. Duncan;R. W. Vaughan
  4. J. Chem. Phys. v.73 R. R. Cavanagh;J. T. Yates
  5. J. Chem. Phys. v.74 T. M. Duncan;J. T. Yates;R. W. Vaughan
  6. J. Chem. Soc. Faraday Trans. 1 v.74 M. Primet
  7. J. Catal. v.57 D. J. C. Yates;L. L. Marrell;E. B. Prestridge
  8. J. Chem. Phys. v.74 C. A. Rice;S. D. Worley;C. W. Curtis;J. A. Guin;A. R. Tarrer
  9. J. Chem. Phys. v.76 C. A. Rice;S. D. Worley;C. W. Curtis;J. A. Guin;A. R. Tarrer
  10. J. Phys. Chem. v.86 S. D. Worley;C. A. Rice;C. W. Curtis;J. A. Guin
  11. J. Chem. Phys. v.73 P. R. Antoniewcz;R. R. Cavanagh;J. T. Yates
  12. J. Catal. v.74 J. T. Yates;K. Kolasinski;R. R. Cavanagh
  13. J. Chem. Phys. v.79 J. T. Yates;K. Kolasinski
  14. J. Am. Chem. Soc. v.107 H. F. J. Van't Blik;J. B. A. D. Van Zon;T. Huizinga;J. C. Vis;D. C. Koningsberger;R. Prins
  15. J. Catal. v.89 H. P. Wang;J. T. Yates
  16. J. Mol. Catal. v.25 H. F. J. Van't Blik;J. B. A. D. Van Zon;D. C. Koiningsberger;R. Prins
  17. J. Phys. Chem. v.90 J. L. Robbins
  18. J. Phys. Chem. v.89 F. Solymosi;M. Pasztor
  19. J. Phys. Chem. v.90 F. Solymosi;M. Pasztor
  20. J. Chem. Soc. Faraday Trans. 1 v.75 H. Knozinger;E. W. Thornton;M. Wolf
  21. J. Organometal. Chem. v.153 J. L. Bilhou;V. Bilhou-Bougnol;W. F. Graydon;T. M. Basset;A. K. Smith;G. M. Zonderighi;R. Ugo
  22. J. Chem. Phys. v.36 C. W. Garland;J. R. Wilt
  23. J. Am. Chem. Soc. v.83 L. F. Dahl;C. Martell;D. L. Wampler
  24. J. C. S. Chem. Commun. R. Whyman
  25. J. Chem. Soc. A W. P. Griffith;A. J. Wickam
  26. Surf. Sci. v.88 L. H. Dubois;G. A. Somorjai
  27. Surf. Sci. v.91 L. H. Dubois;G. A. Somorjai
  28. Inorg. Chem. v.18 A. K. Smith;F. Hagues;A. Theolier;J. M. Basset;R. Ugo;G. M. Zonderrigh;J. L. Bilhou;V. Bilhou-Bougnol;W. F. Graydon
  29. Inorg. Chem. v.14 G. C. Sith;P. Thomas;C. Sipra;R. Dasgupta;K. Iwatate;K. L. Watters
  30. J. Phys. Chem. v.91 P. Basu;D. Panayotov;J. T. Yates
  31. J. Phys. Chem. v.88 J. T. Kiss;R. D. Gonzalez
  32. Chem. Phys. Lett. v.60 G. Ertl;M. Weiss;S. B. Lee
  33. Chem. Phys. Lett. v.106 F. M. Hoffmann;J. Hrbek;R. A. DePaola
  34. Appl. Surf. Sci. v.19 J. E. Crowell;G. A. Somorjai
  35. J. Phys. Lett. v.89 J. E. Crowell;W. T. Tysoe;G. A. Somorjai
  36. J. Catal. v.95 S. C. Chuang;J. G. Goodwin Jr.;I. Wender
  37. J. Catal. v.97 H. Praliaud;J. A. Dalmon;C. Mirodatos;G. A. Martin
  38. J. Catal. v.92 K. Aika;K. Shimazaki;Y. Hattori;A. Ohya;S. Ohsima;K. Shirota;A. Ozaki
  39. Surf. Sci. v.150 N. D. Lang;S. Holloway;J. K. Norskov
  40. Surf. Sci. v.139 H. S. Luftman;J. M. White
  41. J. Kor. Chem. Soc. v.28 S. Chang;H. Pak;J. W. Lee;S. Pak;H. Shin
  42. Doctoral Dissertation, Seoul National University S. Park
  43. J. Catal. v.44 F. M. Hoffmann;A. M. Bradshaw
  44. Bull. Kor. Chem. Soc. v.9 J. W. Lee;S. Chang;H. Pak;K. J. Shin;M. Kim;W. Chung