Structure analysis of bimetallic Co–Au nanoparticles formed by sequential ion implantation
| Autor: | Hong chen, Xiao-jian Zhang, R.W. Wang, Hou-mei Dai, Hua-jian Chen, Zu-zhao Xiong, Shu-peng Song, Lirong Zheng, L.L. Ji, Yu-hua Wang, Jian-Duo Lu, Deng-jing Wang, Ke Zhang |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Extended X-ray absorption fine structure Analytical chemistry General Physics and Astronomy Nanoparticle 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Ion Nanomaterials Ion implantation Chemical engineering Transmission electron microscopy Absorption (chemistry) 0210 nano-technology Bimetallic strip |
| Zdroj: | Applied Surface Science. 378:191-195 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2016.03.233 |
| Popis: | Co–Au alloy Metallic nanoparticles (MNPs) are formed by sequential ion implantation of Co and Au into silica glass at room temperature. The ion ranges of Au ions implantation process have been displayed to show the ion distribution. We have used the atomic force microscopy (AFM) and transmission electron microscopy (TEM) to investigate the formation of bimetallic nanoparticles. The extended X-ray absorption fine structure (EXAFS) has been used to study the local structural information of bimetallic nanoparticles. With the increase of Au ion implantation, the local environments of Co ions are changed enormously. Hence, three oscillations, respectively, Co–O, Co–Co and Co–Au coordination are determined. |
| Databáze: | OpenAIRE |
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