Deactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells

A. Malolepszy, M. Mazurkiewicz, L. Stobinski, B. Lesiak, L. Kövér, J. Tóth, B. Mierzwa, A. Borodzinski, F. Nitze, T. Wågberg

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

One of the main problems of palladium based catalysts for a direct formic acid fuel cell (DFAFC) is their low stability during a long-term operation. In these studies, the Pd-ZrO2 catalyst supported on the multiwall carbon nanotubes (MWCNTs) was prepared and thermo-chemically treated. These catalysts were tested in a fuel cell for formic acid electrooxidation, and their chemical composition and structure were characterised by the XPS, STEM, HR-TEM and XRD techniques. It was found that the Pd-ZrO2/MWCNTs catalyst after synthesis causes oscillations of the cell voltage during operation resulting in significantly higher deactivation resistance than that of Pd/MWCNTs. This may be attributed to the "self-cleaning" mechanism of poisoned Pd catalyst by carbon monoxide through the electrochemical oxidation of COads (adsorbed) to CO2 (gas).

Original languageEnglish
Pages (from-to)16724-16733
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number46
DOIs
Publication statusPublished - Dec 14 2015

Fingerprint

Formic acid fuel cells (FAFC)
formic acid
deactivation
fuel cells
Carbon nanotubes
carbon nanotubes
catalysts
Catalysts
Electrooxidation
Electrochemical oxidation
Formic acid
Catalyst supports
Carbon monoxide
electrochemical oxidation
Palladium
Fuel cells
Cleaning
X ray photoelectron spectroscopy
carbon monoxide
cleaning

Keywords

  • Deactivation resistance
  • Direct formic acid fuel cell
  • Electrochemical oxidation
  • Pd-ZrO/MWCNTs
  • Spontaneous voltage oscillation

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Deactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells. / Malolepszy, A.; Mazurkiewicz, M.; Stobinski, L.; Lesiak, B.; Kövér, L.; Tóth, J.; Mierzwa, B.; Borodzinski, A.; Nitze, F.; Wågberg, T.

In: International Journal of Hydrogen Energy, Vol. 40, No. 46, 14.12.2015, p. 16724-16733.

Research output: Contribution to journalArticle

Malolepszy, A, Mazurkiewicz, M, Stobinski, L, Lesiak, B, Kövér, L, Tóth, J, Mierzwa, B, Borodzinski, A, Nitze, F & Wågberg, T 2015, 'Deactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells', International Journal of Hydrogen Energy, vol. 40, no. 46, pp. 16724-16733. https://doi.org/10.1016/j.ijhydene.2015.08.048
Malolepszy, A. ; Mazurkiewicz, M. ; Stobinski, L. ; Lesiak, B. ; Kövér, L. ; Tóth, J. ; Mierzwa, B. ; Borodzinski, A. ; Nitze, F. ; Wågberg, T. / Deactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells. In: International Journal of Hydrogen Energy. 2015 ; Vol. 40, No. 46. pp. 16724-16733.
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