Skip to main content
SpringerLink
Log in

Thermal properties of solid-state Pt/TiO2/Ti emf cells studied by microcalorimetry

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract

We have studied the temperature dependence of generated current during hydrogen-to-water oxidation over Pt/TiO2/Ti layer structures in which the oxide is grown by high-voltage electrochemical anodization of a titanium foil. The platinum contact is prepared using a paste process. We found that the generator effect breaks down completely at temperatures above 65 °C. By means of an isothermally operated microcalorimeter setup, the temperature dependence of the reaction was determined under flow conditions and evaluated in a thermodynamic constant-volume approach. Three different regimes can be distinguished between 1 and 157.3 °C in which the rate of reaction is controlled by either the activation energy of the reaction, the pore diffusion or the film diffusion. Based on the data, the thermal properties of solid-state Pt/TiO2/Ti emf cells are explained.

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

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. K. Schierbaum, M. El Achhab, Phys. Status Solidi A 208, 2796–2802 (2011). doi:10.1002/pssa.201127400

    Article  ADS  Google Scholar 

  2. E.G. Karpov, M.A. Hashemian, S.K. Dasari, J. Chem. Phys. C 117, 15632–15638 (2013)

    Article  Google Scholar 

  3. C. Sachs, M. Hildebrand, S. Völkening, J. Wintterlin, G. Ertl, J. Chem. Phys. 116, 5759 (2002)

    Article  ADS  Google Scholar 

  4. A. Hervier, J.R. Renzas, J.Y. Park, G.A. Somorjai, Nano Lett. 9, 3930 (2009)

    Article  Google Scholar 

  5. H. Ikeda, J. Sato, F.A. Williams, Surf. Sci. 326, 11 (1995)

    Article  ADS  Google Scholar 

  6. M. El Achhab, A. Erbe, G. Koschek, R. Hamouich, K. Schierbaum, Appl. Phys. A 116, 2039 (2014). doi:10.1007/s00339-014-8392-5

    Article  ADS  Google Scholar 

  7. M.A. Hashemian, E. Palacios, I.I. Nedrygailov, D. Diesing, E.G. Karpov, ACS Appl. Mater. Interfaces 5, 12375–12379 (2013)

    Article  Google Scholar 

  8. M.J. Moran, H.N. Shapiro (eds.), Fundamentals of Engineering Thermodynamics (Wiley, Hoboken, 2008), p. 156

    Google Scholar 

  9. J.N. Smith, R.L. Palmer, J. Chem. Phys. 56, 13 (1972)

    Article  ADS  Google Scholar 

  10. A.B. Anton, D.C. Cadogan, Surf. Sci. 239, L548 (1990)

    Article  ADS  Google Scholar 

  11. S. Völkening, K. Bedürftig, K. Jacobi, J. Wintterlin, G. Ertl, Phys. Rev. 83, 2672 (1999)

    Google Scholar 

  12. R. Dittmeyer, G. Emig, Simultaneous Heat and Mass Transfer and Chemical Reaction, in Handbook of Heterogeneous Catalysis, vol. 3, ed. by G. Ertl, H. Knözinger, F. Schüth, J. Weitkamp (Wiley, Hoboken, 2008), p. 1727

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Materials Science, Institute for Experimental Condensed Matter Physics, Heinrich-Heine University, Universitätsstraße 1, 40225, Düsseldorf, Germany

    Ömer Cakabay, Mhamed El Achhab & Klaus Schierbaum

Authors
  1. Ömer Cakabay
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Mhamed El Achhab
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Klaus Schierbaum
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Klaus Schierbaum.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Cakabay, Ö., Achhab, M.E. & Schierbaum, K. Thermal properties of solid-state Pt/TiO2/Ti emf cells studied by microcalorimetry. Appl. Phys. A 118, 1127–1132 (2015). https://doi.org/10.1007/s00339-014-8927-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00339-014-8927-9

Keywords

Search

Navigation