Research

Electrode processes at gas | salt | Pd nanoparticle | glassy carbon electrode contacts: salt effects on the oxidation of formic acid vapor and the oxidation of hydrogen


Reference:

Xia, F., Dale, S. E. C., Webster, R. A., Pan, M., Mu, S. C., Tsang, S. C., Mitchels, J. M. and Marken, F., 2011. Electrode processes at gas | salt | Pd nanoparticle | glassy carbon electrode contacts: salt effects on the oxidation of formic acid vapor and the oxidation of hydrogen. New Journal of Chemistry, 35 (9), pp. 1855-1860.

Related documents:

[img]
Preview
PDF (Xia_NJC_2011_35_9_1855.pdf) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (632kB) | Preview

    Official URL:

    http://dx.doi.org/10.1039/c1nj20421a

    Abstract

    The electrochemical oxidation of formic acid to CO(2) is facile at nano-palladium catalysts. In conventional electrochemical systems this process is conducted in aqueous phase and the resulting formation of poorly soluble CO(2) gas can limit the kinetics. Here, an alternative electrochemical system with the gas phase in closer contact to the palladium nanoparticle catalyst is investigated based on a glassy carbon electrode and a solid salt electrolyte. It is demonstrated that the reaction zone of salt (here (NH(4))(2)SO(4) is most effective), palladium nanoparticle catalyst, and gas phase, is where the electrochemical oxidation process occurs. The effects of the type of salt, the partial pressure of formic acid, and the gas flow rate are investigated. Preliminary data for the oxidation of hydrogen gas at the salt vertical bar palladium vertical bar electrode contact are reported. A significant salt effect on the palladium catalysed reactions is observed and potential future applications of "salt cells'' in sensing are discussed.

    Details

    Item Type Articles
    CreatorsXia, F., Dale, S. E. C., Webster, R. A., Pan, M., Mu, S. C., Tsang, S. C., Mitchels, J. M. and Marken, F.
    DOI10.1039/c1nj20421a
    DepartmentsFaculty of Science > Chemistry
    Research CentresCentre for Sustainable Chemical Technologies
    RefereedYes
    StatusPublished
    ID Code25819

    Export

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...