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EnglishSilica supported Ru-Cu bimetallic catalysts have been studied by FTIR spectroscopy. Experiments have been carried out on two series of samples prepared from RuCl3 and RU(NO)(NO3)(3). The systems studied contained a total amount of metal of ca. 2 wt.%. On the monometallic Ru/SiO2 samples, adsorption of CO led to an asymmetric band centred at 2036 cm(-1) and two small bands at a higher frequency. The band intensity was greater for the samples prepared from RU(NO)(NO3)(3). CO adsorption on Cu/SiO2, leads to a band at 2117 cm(-1) which easily disappears upon outgassing at room temperature. On the bimetallic samples, the IR spectra indicate the formation Ru-Cu particles having a surface covered mainly by Cu; there is more Cu on the surface of the samples prepared from RUCl(3).
| Titolo: | RU-CU/SIO2 CATALYSTS - CHARACTERIZATION BY FTIR SPECTROSCOPY | |
| Autori interni: | ||
| Data di pubblicazione: | 1994 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.11769/3432 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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