Preparation of Size-controllable (Cu-ZnO)@C Core- and Yolk-shell Nanoparticles

Ching I. Hong, H. Y. Kang, Fang Chih Chang, Hong-Paul Wang

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

Abstract

The (Cu-ZnO)@C core-shell nanoparticles were prepared by carbonization of Cu2+- and Zn2+-CD (Cu/Zn ratio=l; (Cu+Zn)/CD=3) at 573 K for 2 hrs. By X-ray absorption and diffraction spectroscopies, the major compounds in the Cu-ZnO@C core-shell nanoparticle are metallic copper (Cu) and ZnO. Cu20 is not observed. The TEM images indicate that the (Cu-ZnO)@C core-shell nanoparticle have the average Cu diameter of 20 nm, which are nearly in a spherical shape and isolated individually. After etching of Cu from the (Cu-ZnO)@C, the sizes of Cu encapsulated within the carbon-shell has reduced to 3-14 nm in diameters to form Cu-ZnO@C yolk-shell nanoparticles.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Pages355-357
Number of pages3
Volume1
Publication statusPublished - 2013
EventNanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 - Washington, DC, United States
Duration: 2013 May 122013 May 16

Other

OtherNanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
CountryUnited States
CityWashington, DC
Period13-05-1213-05-16

All Science Journal Classification (ASJC) codes

  • Biotechnology

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