Diffuse Reflectance IR Study of CO Adsorption on a Bimetallic Pt−Pd Catalyst Supported on NaY Zeolite. Evidence of Alloy Formation

1996 ◽  
Vol 100 (40) ◽  
pp. 16238-16241 ◽  
Author(s):  
T. Rades ◽  
V. Yu. Borovkov ◽  
V. B. Kazansky ◽  
M. Polisset-Thfoin ◽  
J. Fraissard
Keyword(s):  
Diffuse Reflectance ◽  
Co Adsorption ◽  
Alloy Formation ◽  
Pd Catalyst ◽  
Nay Zeolite ◽  
Ir Study

IR study of the CO adsorption on Pt/ZnO samples: Evidence for a PtZn phase formation in the SMSI state

1989 ◽  
Vol 209 (1-2) ◽  
pp. 77-88 ◽  
Author(s):  
Flora Boccuzzi ◽  
Anna Chiorino ◽  
Giovanna Ghiotti
Keyword(s):  
Phase Formation ◽  
Co Adsorption ◽  
Ir Study

An IR-study of the -CO CO-adsorption state in the system CO/H/Ni(100)

1987 ◽  
Vol 183 (1-2) ◽  
pp. L279-L284 ◽  
Author(s):  
B.E. Hayden ◽  
R. Klauser ◽  
A.M. Bradshaw
Keyword(s):  
Co Adsorption ◽  
Adsorption State ◽  
Ir Study

Dynamic Effects in CO Adsorption on Ru/ZSM-5. Part I: Oxidative Disruption of Ru

1992 ◽  
Vol 46 (8) ◽  
pp. 1279-1287 ◽  
Author(s):  
J. Y. Shen ◽  
A. Sayari ◽  
S. Kaliaguine
Keyword(s):  
Diffuse Reflectance ◽  
Direct Evidence ◽  
Co Adsorption ◽  
Hydroxyl Groups ◽  
Surface Hydroxyl ◽  
Surface Hydroxyl Groups ◽  
Diffuse Reflectance Infrared Spectroscopy ◽  
Adsorption Of Co ◽  
Diffuse Reflectance Infrared

In situ diffuse reflectance infrared spectroscopy of CO adsorption on reduced Ru/ZSM-5 reveals that, under appropriate conditions, in addition to the linearly adsorbed CO on metallic Ru particles (at 2045 ± 10 cm−1), two multicarbonyls involving oxidized Ru can be generated. These multicarbonyl species are characterized by IR doublets at 2080 and 2138 cm−1 and at 2086 and 2150 cm−1, respectively. Direct evidence for the consumption of both types of the ZSM-5 surface hydroxyl groups (silanol and Brønsted) during the oxidative adsorption of CO has been obtained. Each of these two OH types is believed to be associated with one of the multicarbonyl species.

IR study of the CO adsorption on Pt/ZnO samples: Evidence for a PtZn phase formation in the SMSI state

1989 ◽  
Vol 209 (1-2) ◽  
pp. A35
Author(s):  
Flora Boccuzzi ◽  
Anna Chiorino ◽  
Giovanna Ghiotti
Keyword(s):  
Phase Formation ◽  
Co Adsorption ◽  
Ir Study
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