| Autor: |
Shimoda, M., Konishi, T., Tateishi, K., Toujyou, T., Tsukamoto, S., Nishiwaki, N., Arisawa, M., Hoshiya, N., Shuto, S., Isomura, N., Yokota, H., Furukawa, Y., Iizuka, K., Ogiwara, T., Isozaki, Y., Yamashita, Y., Yoshikawa, H., Ueda, S., Kobayashi, K. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; Aug2010, Vol. 108 Issue 2, p024309, 5p, 2 Black and White Photographs, 3 Graphs |
| Abstrakt: |
We present studies on the structure and chemical states of a catalyst developed by immobilizing palladium on S-terminated GaAs(001). Hard x-ray photoelectron spectroscopy (HX-PES) of core-level and valence band photoemission consistently indicates that the organopalladium molecules are reduced on the surface yielding Pd nanoparticles with a metallic nature. This finding is supported by high-resolution observations using scanning electron microscopy and backscattered electron image. HX-PES results also reveal that a portion of S atoms forming the S-termination is oxidized during the formation of Pd nanoparticles. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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