CO interaction with ultrathin MgO films on a Mo(100) surface studied by infrared reflection–absorption spectroscopy, temperature programmed desorption, and x‐ray photoelectron spectroscopy

1992 ◽  
Vol 10 (4) ◽  
pp. 2248-2252 ◽  
Author(s):  
Jian‐Wei He ◽  
Jason S. Corneille ◽  
Cesar A. Estrada ◽  
Ming‐Cheng Wu ◽  
D. Wayne Goodman
2016 ◽  
Vol 18 (20) ◽  
pp. 13960-13973 ◽  
Author(s):  
Karl-Heinz Dostert ◽  
Casey P. O'Brien ◽  
Francesca Mirabella ◽  
Francisco Ivars-Barceló ◽  
Swetlana Schauermann

We present a mechanistic study on adsorption of acrolein and its partial hydrogenation products propanal and allyl alcohol over Pd(111) to understand the factors governing the selectivity in acrolein hydrogenation.


2005 ◽  
Vol 879 ◽  
Author(s):  
Scott K. Stanley ◽  
John G. Ekerdt

AbstractGe is deposited on HfO2 surfaces by chemical vapor deposition (CVD) with GeH4. 0.7-1.0 ML GeHx (x = 0-3) is deposited by thermally cracking GeH4 on a hot tungsten filament. Ge oxidation and bonding are studied at 300-1000 K with X-ray photoelectron spectroscopy (XPS). Ge, GeH, GeO, and GeO2 desorption are measured with temperature programmed desorption (TPD) at 400-1000 K. Ge initially reacts with the dielectric forming an oxide layer followed by Ge deposition and formation of nanocrystals in CVD at 870 K. 0.7-1.0 ML GeHx deposited by cracking rapidly forms a contacting oxide layer on HfO2 that is stable from 300-800 K. Ge is fully removed from the HfO2 surface after annealing to 1000 K. These results help explain the stability of Ge nanocrystals in contact with HfO2.


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