Hydrogen adsorption and absorption on ultrathin Pd films on Ta(110)
โ Scribed by JohnM. Heitzinger; Armen Avoyan; BruceE. Koel
- Publisher
- Elsevier Science
- Year
- 1993
- Weight
- 85 KB
- Volume
- 294
- Category
- Article
- ISSN
- 0167-2584
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We study the chemisorption of hydrogen on epitaxial and incommensurate Pd overlayers deposited on Ta and W ( 1 lo), respectively, within a self-consistent tight-binding recursion-scheme model. The incommensurate films are described by a meanfield Hamiltonian. On the epitaxial layer the H-Pd bonding
The Hz adsorption properties of ultrathin Pd films deposited on Mo( 100) have been studied with Auger electron spectroscopy (AES) and temperature-programmed desorption (TPD). The pseudomorphic monolayer of Pd on Mo( 100) has a greatly rcduccd H2 uptake capacity at 150 K compared to bulk Pd. Desorpti