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http://hdl.handle.net/10119/11434
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| Title: | In-Situ Quick XAFS Study on the Formation Mechanism of Cu Nanoparticles Synthesized in Aqueous Phase |
| Authors: | Nishimura, Shun
Takagaki, Atsushi
Maenosono, Shinya
Ebitani, Kohki |
| Keywords: | in-situ XAFS
Cu nanoparticles
formation mechanism
role of capping agent
reaction kinetic |
| Issue Date: | 2010-06 |
| Publisher: | Nano Science and Technology Institute |
| Magazine name: | Nanotech 2010 |
| Volume: | 1 |
| Start page: | 356 |
| End page: | 359 |
| Abstract: | The formation process of Cu nanoparticles (NPs)capped by poly(N-vinyl-2-pyrrolidone) (PVP) using a wetchemical reduction method was observed with in-situ timeresolved X-ray adsorption fine structure (XAFS) method incombination with other analytical techniques. XAFS analysis directly indicated that the Cu(OH)_2 and Cu^+ species were formed as intermediates, and their life-time were extended by adding PVP capping agent. The morphology analysis and indicator method also supported that both reticulated Cu(OH)_2 structure and Cu^+ intermediate remained for a long time with an increase in PVP capping agent. Our results suggested that the PVP capping agent plays an important role to the reaction kinetic resulting from extending the life-time of intermediates such as Cu(OH)_2 and Cu^+ species. |
| Rights: | © 2010 NSTI http://nsti.org. Reprinted and revised, with permission, from Nanotech 2010, pp. 356-359, June 21-24, 2010, Anaheim, U.S.A. |
| URI: | http://hdl.handle.net/10119/11434 |
| Material Type: | publisher |
| Appears in Collections: | c11-1. 会議発表論文 (Conference Papers)
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| Nanotech2010.pdf | | 1544Kb | Adobe PDF | View/Open |
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