ISSN:
1572-879X
Keywords:
Temperature Programmed Desorption (TPD)
;
Auger Electron Spectroscopy (AES)
;
supported metal catalysts Ru/SiO2 and Ru-Cu/SiO2
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract In H2 TPD from Ru/SiO2, two desorption peaks were observed. Both exchanged H for D in sequential dosing experiments. These hydrogen adsorption states were also found for Ru-Cu/SiO2, along with another, higher temperature state at 400–500 K. This last state was neither exchangeable with nor replaceable by deuterium subsequently dosed at 150 K. The three chemisorption states are attributed to hydrogen held at the interface between Ru and SiO2 (〈 300 K), adsorbed on Ru particles (310–380 K), and held at the Ru-Cu interface (〉 400 K).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00763956
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