at Google ScholarTitle data
Mazurek, Marian ; Benker, Nathalie ; Roth, Christina ; Buhrmester, Thorsten ; Fuess, Hartmut:
Electrochemical impedance and x-ray absorption spectroscopy (EXAFS) as in-situ methods to study the PEMFC anode.
In: Fuel Cells.
Vol. 6
(2006)
Issue 1
.
- pp. 16-20.
ISSN 1615-6854
DOI: https://doi.org/10.1002/fuce.200500095
Abstract in another language
The effect of alloy formation on the performance of carbonsupported Pt and Ru fuel cell catalysts has been investigated by electrochemical impedance spectroscopy (EIS), X-ray absorption spectroscopy (EXAFS) and fuel cell tests. The CO tolerance of the respective anode electrocatalysts has been tested in both reformate and methanol operation. This paper describes results for mixtures of carbon-supported Pt and carbon-supported Ru catalysts. The particle sizes of the active metals have been modified by heat-treatment in nitrogen. It has been observed that the size of Pt and Ru particles has a significant influence on the electrochemical performance, the activity improving for smaller Ru particles. The performance of certain Pt-Ru mixtures in a single cell fuel cell is comparable with an alloy catalyst.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | Special Issue: 2nd France-Deutschland Fuel Cells Conference |
| Keywords: | EIS; EXAFS; Mixture; PEMFC |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering > Chair Electrochemical Process Engineering - Univ.-Prof. Dr. Christina Roth Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 540 Chemistry 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 23 Apr 2021 07:56 |
| Last Modified: | 05 Apr 2022 06:50 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/64892 |