RT Journal Article
T1 Operando Reactor-Cell with Simultaneous Transmission FTIR and Raman Characterization (IRRaman) for the Study of Gas-Phase Reactions with Solid Catalysts.
A1 Ternero-Hidalgo, Juan José
A1 Guerrero-Pérez, María Olga
A1 Rodríguez-Mirasol, José
A1 Cordero-Alcántara, Tomás
A1 Bañares, Miguel Ángel
A1 Portela, Raquel
A1 Bazin, Philippe
A1 Cleo, Guillaume
A1 Daturi, Marco
K1 Espectroscopía Raman
K1 Catalizadores
AB Raman and transmission FTIR spectroscopic techniques have been coupled in a new homemade reactor-cell designed in a joint CSIC–LCS collaboration. The setup is easily adapted to any FTIR and fiber-coupled Raman spectrometers and gas analysis techniques. It allows for simultaneous operando FTIR and Raman spectroscopic measurement, which provide complementary characterization of adsorbed species, reaction intermediates, and structural properties of the catalyst. This system was validated with the study of vanadium-based catalysts during propane oxydehydrogenation (ODH). The combined use of both spectroscopies with gas analysis techniques to measure the activity contributes to the understanding of propane ODH and the identification of the role of different oxygen species bound to vanadium sites. For example, the simultaneous characterization of the catalyst under the same conditions by IR and Raman confirms that the V═O mode has the same frequency in both spectroscopies and that bridging oxygen sites (V—O—V, V—O—Zr) present higher activity than terminal V═O bonds. These results demonstrate the high potential of the new simultaneous transmission IR–Raman operando rig to correlate the activity and the structure of catalysts, thus assisting the rational design of catalytic processes.
PB American Chemical Society
YR 2020
FD 2020-03-10
LK https://hdl.handle.net/10630/30473
UL https://hdl.handle.net/10630/30473
LA eng
NO Juan José Ternero-Hidalgo, María Olga Guerrero-Pérez, José Rodríguez-Mirasol, Tomás Cordero, Miguel A. Bañares, Raquel Portela, Philippe Bazin, Guillaume Clet, and Marco Daturi Analytical Chemistry 2020 92 (7), 5100-5106
NO Authors acknowledge the FEDER-Region Basse-Normandie (France)-CNRS for a Chaire d’Excellence, which resulted in the implementation of the “IRRaman” rig and a research stay allowing to perform these investigations. This work was also supported by the Spanish Ministry of Economy and Competitiveness and FEDER (CTQ2012-36408, CTQ2015-68654-R and CTM2017-82335-R). J.J.T.H. acknowledges the assistance of the Ministry of Economy and Competitiveness of Spain for the award of a FPI Grant (BES-2013-064425) and the award for performing his stay at ENSICAEN (EEBB-I-16-10749).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026