期刊
CHEMCATCHEM
卷 11, 期 8, 页码 2063-2068出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201900101
关键词
Ru nanoparticles; CO2 hydrogenation; Residual species; Reaction intermediates; Operando DRIFTS
资金
- Spanish Ministerio de Economia y Competitividad - MINECO - FEDER funds from the European Union [ENE2015-66975-C3-2-R]
- Spanish Government by the European Regional Development Fund through the Juan de la Cierva incorporacion program [IJCI-2015-26348]
In this work, we present a highly active catalyst based on Ru nanoparticles dispersed on alumina, which showed an unexpected activity for CO2 methanation. This exceptional catalytic behavior was attributed to the presence of residual species that remained on the surface after synthesis. Furthermore, through Operando DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy) measurements it was demonstrated that these remaining species provoked an induced effect on the nature of the surface intermediates spectroscopically observed, and consequently on their mechanistic role during the pathway of the CO2 hydrogenation to methane.
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