Thermally Activated Interaction of Co Growth with ZnO(101̅0) Surface
| Autor: | Shu Hsuan Su, Jung-Chun Huang, Yao Jane Hsu, Hsin Hsien Chen, Tsung Hsun Lee |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Annealing (metallurgy) Nucleation Sintering Nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nanoclusters law.invention Catalysis Chemical state General Energy Chemical engineering law Thermal stability Physical and Theoretical Chemistry Scanning tunneling microscope |
| Zdroj: | The Journal of Physical Chemistry C. 117:17540-17547 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp403756r |
| Popis: | The nucleation and sintering characteristics of Co on ZnO(1010) during annealing were investigated by scanning tunneling microscopy (STM). The extent of coverage and annealing temperature were varied to modify the size of the Co nanoclusters. Temperature-dependent X-ray photoemission spectra of the Co chemical state reveal that metallic Co dominates the annealing procedure on ZnO(1010) and is more thermally stable than Co on both ZnO(0001) and ZnO(0001). The effects of annealing time and the distribution of Co adatoms were elucidated by STM. The results have potential implications for the thermal stability of Co/ZnO(1010) in real catalytic processes. |
| Databáze: | OpenAIRE |
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