Dissolution of platinum: limits for the deployment of electrochemical energy conversion?

Angel A Topalov; Ioannis Katsounaros; Michael Auinger; Serhiy Cherevko; Josef C Meier; Sebastian O Klemm; Karl J J Mayrhofer

doi:10.1002/anie.201207256

Dissolution of platinum: limits for the deployment of electrochemical energy conversion?

Angew Chem Int Ed Engl. 2012 Dec 7;51(50):12613-5. doi: 10.1002/anie.201207256. Epub 2012 Nov 4.

Authors

Angel A Topalov¹, Ioannis Katsounaros, Michael Auinger, Serhiy Cherevko, Josef C Meier, Sebastian O Klemm, Karl J J Mayrhofer

Affiliation

¹ Department of Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany. [email protected]

Abstract

Platinum stability: Dissolution of Pt, which is one major degradation mechanism in, for example, hydrogen/air fuel cells, was monitored under potentiodynamic and potentiostatic conditions. The highly sensitive and time-resolving dissolution monitoring enables the distinction between anodic and cathodic dissolution processes during potential transient and chronoamperometric experiments, and the precise quantification of the amount of dissolved Pt.

MeSH terms

Catalysis
Electrochemical Techniques
Electrodes
Energy-Generating Resources*
Hydrogen / chemistry
Platinum / chemistry*

Substances

Platinum
Hydrogen