Journalartikel

Autorenliste: Timmer, Phillip; Glatthaar, Lorena; Weber, Tim; Over, Herbert

Jahr der Veröffentlichung: 2023

Zeitschrift: Catalysts

Bandnummer: 13

Heftnummer: 8

eISSN: 2073-4344

Open Access Status: Gold

DOI Link: https://doi.org/10.3390/catal13081178

Verlag: MDPI

Abstract: 

Operando diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) is combined with online mass spectrometry (MS) to help to resolve a long-standing debate concerning the active phase of RuO₂ supported on rutile TiO₂ (RuO₂@TiO₂) during the CO oxidation reaction. DRIFTS has been demonstrated to serve as a versatile probe molecule to elucidate the active phase of RuO₂@TiO₂ under various reaction conditions. Fully oxidized and fully reduced catalysts serve to provide reference DRIFT spectra, based on which the operando CO spectra acquired during CO oxidation under various reaction conditions are interpreted. Partially reduced RuO₂@TiO₂ was identified as the most active catalyst in the CO oxidation reaction. This is independent of the reaction conditions being reducing or oxidizing and whether the starting catalyst is the fully oxidized RuO₂@TiO₂ or the partially reduced RuO₂@TiO₂.

Harvard-Zitierstil: Timmer, P., Glatthaar, L., Weber, T. and Over, H. (2023) Identifying the Active Phase of RuO2 in the Catalytic CO Oxidation Reaction, Employing Operando CO Infrared Spectroscopy and Online Mass Spectrometry, Catalysts, 13(8), Article 1178. https://doi.org/10.3390/catal13081178

APA-Zitierstil: Timmer, P., Glatthaar, L., Weber, T., & Over, H. (2023). Identifying the Active Phase of RuO2 in the Catalytic CO Oxidation Reaction, Employing Operando CO Infrared Spectroscopy and Online Mass Spectrometry. Catalysts. 13(8), Article 1178. https://doi.org/10.3390/catal13081178