In-Situ quick XAFS study on the formation mechanism of Cu nanoparticles synthesized in aqueous phase

Shun Nishimura, Atsushi Takagaki, Shinya Maenosono, Kohki Ebitani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The formation process of Cu nanoparticles (NPs) capped by poly(N-vinyl-2-pyrrolidone) (PVP) using a wet-chemical reduction method was observed with in-situ time-resolved X-ray adsorption fine structure (XAFS) method in combination 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.

Original languageEnglish
Title of host publicationNanotechnology 2010
Subtitle of host publicationAdvanced Materials, CNTs, Particles, Films and Composites - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
Pages356-359
Number of pages4
Publication statusPublished - Nov 9 2010
Externally publishedYes
EventNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010 - Anaheim, CA, United States
Duration: Jun 21 2010Jun 24 2010

Publication series

NameNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
Volume1

Other

OtherNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
CountryUnited States
CityAnaheim, CA
Period6/21/106/24/10

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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