The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media

A. Santasalo-Aarnio (Corresponding author), E. Sairanen, R. M. Arán-Ais, M. C. Figueiredo, J. Hua, J. M. Feliu, J. Lehtonen, R. Karinen, T. Kallio

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

Abstract

Controlled bimetallic catalyst materials can be obtained using atomic layer deposition (ALD) method. In this paper, this method was applied to prepare Pt, PtCo, and PtCoPt nanoparticle catalysts on carbon support. Their activity for ethanol oxidation was studied by various electrochemical methods and the dependency of the reaction on temperature and mass transfer was evaluated. In addition, FTIR analysis was performed to confirm the reaction products. The results showed that bimetallic PtCo enhances ethanol oxidation by increasing the amount of CO2 produced; however, at elevated temperatures, the bimetallic PtCo catalyst lacked stability. Nevertheless, the ALD-prepared PtCoPt catalyst showed similar reaction mechanism as PtCo catalyst, but possess increased stability and superior performance for ethanol oxidation at elevated temperatures.

Original languageEnglish
Pages (from-to)38-48
Number of pages11
JournalJournal of Catalysis
Volume309
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Fingerprint

Atomic layer deposition
atomic layer epitaxy
Ethanol
ethyl alcohol
catalysts
Oxidation
oxidation
Catalysts
Reaction products
Catalyst supports
reaction products
Temperature
mass transfer
temperature
Catalyst activity
Carbon
Mass transfer
Nanoparticles
nanoparticles
carbon

Keywords

  • ALD
  • Alkaline media
  • Arrhenius plot
  • DEFC
  • Ethanol oxidation
  • FTIR
  • PtCo catalyst
  • Temperature dependency

Cite this

Santasalo-Aarnio, A., Sairanen, E., Arán-Ais, R. M., Figueiredo, M. C., Hua, J., Feliu, J. M., ... Kallio, T. (2014). The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media. Journal of Catalysis, 309, 38-48. https://doi.org/10.1016/j.jcat.2013.08.027
Santasalo-Aarnio, A. ; Sairanen, E. ; Arán-Ais, R. M. ; Figueiredo, M. C. ; Hua, J. ; Feliu, J. M. ; Lehtonen, J. ; Karinen, R. ; Kallio, T. / The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media. In: Journal of Catalysis. 2014 ; Vol. 309. pp. 38-48.
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abstract = "Controlled bimetallic catalyst materials can be obtained using atomic layer deposition (ALD) method. In this paper, this method was applied to prepare Pt, PtCo, and PtCoPt nanoparticle catalysts on carbon support. Their activity for ethanol oxidation was studied by various electrochemical methods and the dependency of the reaction on temperature and mass transfer was evaluated. In addition, FTIR analysis was performed to confirm the reaction products. The results showed that bimetallic PtCo enhances ethanol oxidation by increasing the amount of CO2 produced; however, at elevated temperatures, the bimetallic PtCo catalyst lacked stability. Nevertheless, the ALD-prepared PtCoPt catalyst showed similar reaction mechanism as PtCo catalyst, but possess increased stability and superior performance for ethanol oxidation at elevated temperatures.",
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Santasalo-Aarnio, A, Sairanen, E, Arán-Ais, RM, Figueiredo, MC, Hua, J, Feliu, JM, Lehtonen, J, Karinen, R & Kallio, T 2014, 'The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media', Journal of Catalysis, vol. 309, pp. 38-48. https://doi.org/10.1016/j.jcat.2013.08.027

The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media. / Santasalo-Aarnio, A. (Corresponding author); Sairanen, E.; Arán-Ais, R. M.; Figueiredo, M. C.; Hua, J.; Feliu, J. M.; Lehtonen, J.; Karinen, R.; Kallio, T.

In: Journal of Catalysis, Vol. 309, 01.01.2014, p. 38-48.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - The activity of ALD-prepared PtCo catalysts for ethanol oxidation in alkaline media

AU - Santasalo-Aarnio, A.

AU - Sairanen, E.

AU - Arán-Ais, R. M.

AU - Figueiredo, M. C.

AU - Hua, J.

AU - Feliu, J. M.

AU - Lehtonen, J.

AU - Karinen, R.

AU - Kallio, T.

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AB - Controlled bimetallic catalyst materials can be obtained using atomic layer deposition (ALD) method. In this paper, this method was applied to prepare Pt, PtCo, and PtCoPt nanoparticle catalysts on carbon support. Their activity for ethanol oxidation was studied by various electrochemical methods and the dependency of the reaction on temperature and mass transfer was evaluated. In addition, FTIR analysis was performed to confirm the reaction products. The results showed that bimetallic PtCo enhances ethanol oxidation by increasing the amount of CO2 produced; however, at elevated temperatures, the bimetallic PtCo catalyst lacked stability. Nevertheless, the ALD-prepared PtCoPt catalyst showed similar reaction mechanism as PtCo catalyst, but possess increased stability and superior performance for ethanol oxidation at elevated temperatures.

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