Effect of electron beam irradiation on the formation of active sites in the Pt/H pentasil catalyst

Autor:	N. N. Tolkachev, Leonid M. Kustov, A. S. Pribytkov, A. Yu. Stakheev, A. V. Tel’nov, V. N. Golubeva, P. V. Markov
Rok vydání:	2008
Předmět:	Range (particle radiation) Argon Chemistry Radiochemistry Analytical chemistry Infrared spectroscopy chemistry.chemical_element General Chemistry Crystal structure Catalysis Computer Science Applications Adsorption Modeling and Simulation Specific surface area Irradiation
Zdroj:	Kinetics and Catalysis. 49:765-769
ISSN:	1608-3210 0023-1584
Popis:	The influence of preirradiation with an electron beam from a linear resonance electron accelerator in flowing argon on the structure and properties of the 1% Pt/H pentasil catalyst was studied. The support structure was studied by x-ray diffraction and low-temperature nitrogen adsorption. No changes in the crystal structure and pentasil specific surface area were observed in the irradiation dose range from 120 to 900 Mrad at an average electron energy of 7.7 MeV. The electron beam treatment resulted in a considerable increase in the catalytic activity of the Pt/H pentasil in gas-phase toluene hydrogenation as a model reaction. The results obtained by IR spectroscopy of adsorbed CO and X-ray diffraction data suggested that the increase in the catalyst activity after electron beam irradiation is due to changes in the size and charge of the Pt particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::045d282e62a1a6c8e53ff10cffd7f62f https://doi.org/10.1134/s0023158408050236 Zobrazit plný text záznamu Plný text ve formátu PDF