Structure of copper-containing nanoparticles synthesized in polyethylene matrix

• Main Authors: Zhuravleva, M.H., Zapsis, K.V., Konyukhova, Ju.G., Kosobudsky, I.D., Kochubey, V.I., Ushakov, N.M.
• Format: Conference Proceeding
• Language: English
• Subjects: Composite materials; Copper; Electrons; Fluorescence; Matrix decomposition; Nanoparticles; Polyethylene; Semiconductor materials; Spectroscopy; Thermal decomposition
• ISSN: 2160-1518; 2160-1534
• DOI: 10.1109/CAOL.2005.1553924

Copper-containing nanoparticles synthesized in high-pressure polyethylene matrix by the method of thermal decomposition of (CH/sub 3/COO)/sub 2/Cu/spl middot/H/sub 2/O are presented. Average dimensions of nanoparticles and size distribution were determined by transmission electron microscopy and X-ray phase analysis. It was shown that, with increasing copper concentration, the nanoparticles increase in size from 6 to 18 nm. The structure of copper-containing nanoparticles was determined by the method of EXAFS spectroscopy in fluorescence mode and in transmission one. It was shown that the samples containing 3 wt% and 5 wt% of copper are most likely to include CuO particles with tenorite structure. When the copper concentration is increased to 10 wt%, the nanoparticles contain Cu/sub 2/O and metallic copper phases. An increase in copper concentration to 40 wt% results in complication of the composition and the structure of the particles.