Change search
ReferencesLink to record
Permanent link

Direct link
Deactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells
Show others and affiliations
2015 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 40, no 46, 16724-16733 p.Article in journal (Refereed) PublishedText
Abstract [en]

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).

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 40, no 46, 16724-16733 p.
Keyword [en]
Pd-ZrO2/MWCNTs, Direct formic acid fuel cell, Deactivation resistance, Spontaneous voltage oscillation, Electrochemical oxidation
National Category
Physical Chemistry
URN: urn:nbn:se:umu:diva-114625DOI: 10.1016/j.ijhydene.2015.08.048ISI: 000366774000090OAI: diva2:900460
Available from: 2016-02-04 Created: 2016-01-25 Last updated: 2016-02-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Nitze, FlorianWågberg, Thomas
By organisation
Department of Physics
In the same journal
International journal of hydrogen energy
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link