Formation and characteristics of Cu colloids from CuO powder by laser irradiation in 2-propanol

Ming Shin Yeh, Yuh Sheng Yang, Yi Pei Lee, Hsiu Fang Lee, Ya Huey Yeh, Chen Sheng Yeh

研究成果: Article

313 引文 斯高帕斯(Scopus)

摘要

The laser ablation technique has been employed to prepare Cu colloids from CuO powder in 2-propanol using wavelengths of 1064 and 532 nm. The copper colloids resulting from 1064 nm irradiation were conspicuously stable under aerobic conditions without any protective agent present. In addition to Cu particles, the formation of oxidized product, acetone, from 2-propanol was detected by gas chromatography. The discrepancy in the Cu colloidal formation between 1064 and 532 nm was analyzed on the basis of the absorptive ability of CuO powder, the results of the power dependence, and the measurements of the dose effect. The process of photoinduced coalescence that formed larger spherical particles was found to be wavelength-dependent. The stability of the Cu colloids could be the result of their near-perfect spherical shape and the effect of their larger size.

原文English
頁(從 - 到)6851-6857
頁數7
期刊Journal of Physical Chemistry B
103
發行號33
DOIs
出版狀態Published - 1999 八月 19

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

指紋 深入研究「Formation and characteristics of Cu colloids from CuO powder by laser irradiation in 2-propanol」主題。共同形成了獨特的指紋。

  • 引用此