Skip to main content
SpringerLink
Log in

Significant enhancement of the oxidation of CO by H2 and/or H2O on a FeO x /Pt/TiO2 catalyst

  • Published:
Catalysis Letters Aims and scope Submit manuscript

Oxidation of CO on the FeO x /Pt/TiO2 catalyst is markedly enhanced by H2 and/or H2O at 60 °C, but no such enhancement is observed on the Pt/TiO2 catalyst, but shift reaction (CO + H2O → H2 + CO2) does not occur on the FeO x /Pt/TiO2 catalyst at 60 °C. DRIFT-IR spectroscopy reveals that the fraction of bridge bonded CO increases while that of linearly bonded CO decreases on the FeO x loaded Pt/TiO2 catalyst. The in-situ DRIFT IR spectra proved that the bridged CO is more reactive than the linearly bonded CO with respect to O2, and the reaction of the bridge-bonded CO with O2 as well as of the linearly bonded CO is markedly enhanced by adding H2 to a flow of CO + O2. From these results, we deduced that the promoting effect of H2 and/or H2O is responsible for the preferential oxidation (PROX) reaction of CO on the FeO x /Pt/TiO2 catalyst, and a following new mechanism via the hydroxyl carbonyl or bicarbonate intermediate is proposed for the oxidation of CO in the presence of H2O.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. M. Haruta (1997) Catal. Today 36 153 Occurrence Handle1:CAS:528:DyaK2sXitFCrtb0%3D Occurrence Handle10.1016/S0920-5861(96)00208-8

    Article  CAS  Google Scholar 

  2. M. Valden X. Lai D.W. Goodman (1998) Science 281 1647 Occurrence Handle1:CAS:528:DyaK1cXmtVSqu7w%3D Occurrence Handle10.1126/science.281.5383.1647

    Article  CAS  Google Scholar 

  3. M.S. Chen D.W. Goodman (2004) Science 306 252 Occurrence Handle1:CAS:528:DC%2BD2cXotFWnsLw%3D Occurrence Handle10.1126/science.1102420

    Article  CAS  Google Scholar 

  4. Qi Fu H. Saltsuburg M. Flytzani-Stephanopoulos (2003) Science 301 935 Occurrence Handle1:CAS:528:DC%2BD3sXmt1els7s%3D Occurrence Handle10.1126/science.1085721

    Article  CAS  Google Scholar 

  5. R.B. Levy M. Boudart (1974) J. Catal. 32 364 Occurrence Handle10.1016/0021-9517(74)90080-3

    Article  Google Scholar 

  6. C. Zhang Hong He K. Tanaka (2005) Catal. Comm. 6 211 Occurrence Handle1:CAS:528:DC%2BD2MXhs1Wqu7Y%3D Occurrence Handle10.1016/j.catcom.2004.12.012

    Article  CAS  Google Scholar 

  7. K. Tanaka Y. Moro-oka K. Ishigure T. Yajima Y. Okabe Y. Kato H. Hamano S. Sekiya H. Tanaka Y. Matsumoto H. Koinuma H. He C. Zhang Q. Feng (2004) Catal. Lett. 92 115 Occurrence Handle1:CAS:528:DC%2BD2cXovVGmsw%3D%3D Occurrence Handle10.1023/B:CATL.0000014333.84509.1a

    Article  CAS  Google Scholar 

  8. Xiaoyan Shi, Changbin Zhang, Hong He, Masashi Shou, Ken-ichi Tanaka, Shinichi Sugihara and Yoshitaka Ando, Catal. Lett. 107 (2006) 1.

  9. M. Shou H. Takekawa D.-Y. Ju T. Hagiwara K. Tanaka (2006) Catal. Lett. 108 119 Occurrence Handle1:CAS:528:DC%2BD28XktVaqurk%3D Occurrence Handle10.1007/s10562-006-0048-4

    Article  CAS  Google Scholar 

  10. J. Smidt W. Hafner R. Jira R. Sieber J. Sedlemeyer A. Sabel (1960) Angew Chem. Intern. Edit. 1 80 Occurrence Handle10.1002/anie.196200801

    Article  Google Scholar 

  11. C.K. Costello J.H. Yang H.Y. Law Y. Wang J.-N. Lin L.D. Marks M.C. Kung H.H. Kung (2003) Appl. Catal. A. General 243 15 Occurrence Handle1:CAS:528:DC%2BD3sXitVyrs7k%3D Occurrence Handle10.1016/S0926-860X(02)00533-1

    Article  CAS  Google Scholar 

  12. G.C. Bond D.T. Thompson (2000) Gold Bull. 33 41 Occurrence Handle1:CAS:528:DC%2BD3MXmsFKgsw%3D%3D

    CAS  Google Scholar 

  13. E.D. Park J.S. Lee (1999) Catal. J. 186 1 Occurrence Handle1:CAS:528:DyaK1MXls1eitrY%3D Occurrence Handle10.1006/jcat.1999.2531

    Article  CAS  Google Scholar 

  14. M. Date M. Haruta (2001) J. Catal. 201 221 Occurrence Handle1:CAS:528:DC%2BD3MXkvF2jsb4%3D Occurrence Handle10.1006/jcat.2001.3254

    Article  CAS  Google Scholar 

  15. M. Date M. Okumura S. Tsubota M. Haruta (2004) Angew. Chem. Intern. Edit. 43 2129 Occurrence Handle1:CAS:528:DC%2BD2cXjsFSjsb8%3D Occurrence Handle10.1002/anie.200453796

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Advanced Science Research Laboratory, Saitama Institute of Technology, 1690 Fusaiji, Okabe, Saitama, 369-0293, Japan

    Ken-Ichi Tanaka & Masashi Shou

  2. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100052, China

    Hong He & Xiaoyan Shi

Authors
  1. Ken-Ichi Tanaka
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Masashi Shou
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hong He
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Xiaoyan Shi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ken-Ichi Tanaka.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tanaka, KI., Shou, M., He, H. et al. Significant enhancement of the oxidation of CO by H2 and/or H2O on a FeO x /Pt/TiO2 catalyst. Catal Lett 110, 185–190 (2006). https://doi.org/10.1007/s10562-006-0107-x

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10562-006-0107-x

Keywords

Search

Navigation