RuCuZSM5 catalysts: characterization by FT-IR spectroscopy
作者： Carmelo Crisafulli , Salvatore Scirè , Simona Minicò , Rosario Maggiore , Signorino Galvagno
DOI: 10.1016/0169-4332(96)00458-8
关键词: Hydrogenolysis 、 Zeolite 、 Spectroscopy 、 ZSM-5 、 Adsorption 、 Chemistry 、 Catalysis 、 Analytical chemistry 、 Propane 、 Physical chemistry 、 Bimetallic strip
摘要: Abstract H-ZSM5 supported RuCu bimetallic catalysts have been studied by FT-IR spectroscopy. Experiments carried out on samples prepared from Ru(NO)(NO3)3 and RuCl3. On the monometallic Ru ZS M 5 adsorption of CO led to a band at 2046 cm−1, due linearly adsorbed Ru0, several bands higher frequencies related Ruδ+ species. A amount species is formed ex-Ru(NO)(NO3)3 sample, smaller metal particle size this sample compared ex-RuCl3 one. Cu ZSM two 2151 2158 cm−1 are observed, both Cu+1 sites, through reaction with OH groups zeolite. samples, besides all characteristic 2138 attributed bound has detected, denoting formation particles. The spectra indicate that RuCl3 extent particles than those Ru(NO)(NO3)3. This behaviour, presence chlorine in agreement catalytic performance these systems hydrogenolysis propane.
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