Raman spectroscopy and mass analysis of desorption products were used to obtain information about the chemistry of acetylene exposed to alumina, thermally activated alumina, and alumina-supported rhodium catalysts. For the three catalyst systems, the chemistry is similar. High-mass species appear in the mass spectra that are characteristic of polymers containing mixtures of single, double, and triple bonds. For the supported catalyst, the trapping of acetylene trimers correlates with a decrease in the Raman intensity.
ASJC Scopus subject areas
- Colloid and Surface Chemistry