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Characterization of different Pt–Ru catalysts by X-ray diffraction and transmission electron microscopy

Title data

Roth, Christina ; Martz, Nathalie ; Fuess, Hartmut:
Characterization of different Pt–Ru catalysts by X-ray diffraction and transmission electron microscopy.
In: Physical Chemistry Chemical Physics. Vol. 3 (2001) Issue 3 . - pp. 315-319.
ISSN 1463-9084
DOI: https://doi.org/10.1039/B004887I

Abstract in another language

Carbon-supported Pt-Ru (1:1)-catalysts have been synthesized by two reduction methods in an aqueous phase and in a third way in an organic solution and characterized in comparison to a commercial Pt-Ru/C catalyst purchased from E-TEK. X-ray diffraction and transmission electron microscopy were carried out on the different samples in the as-synthesized state and after heat-treatment at 500 °C in nitrogen and air atmospheres respectively. Powder patterns of the different catalysts in the as-synthesized state reveal a fcc pattern with d values matching or close to platinum. No evidence of metallic Ru or any oxide phases was found. After heat-treatment in nitrogen Ru refections occur in the synthesized catalyst samples, backing the supposition of separate platinum and ruthenium particles instead of a Pt-Ru alloy.

Further data

Item Type: Article in a journal
Refereed: Yes
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: 22 Apr 2021 06:56
Last Modified: 22 Apr 2021 06:56
URI: https://eref.uni-bayreuth.de/id/eprint/64859