Jump to main content
Jump to site search

Issue 16, 2013
Previous Article Next Article

Oxidation of copper nanoparticles in water: mechanistic insights revealed by oxygen uptake and spectroscopic methods

Author affiliations

Abstract

Oxidation of aqueous ∼8 nm unprotected copper nanoparticles takes place under air in approximately 2 hours at 30 °C to give Cu2+ as a final product through an intermediate Cu+ species. At 5 °C the process is about 5 times slower; similarly, vitamin C, which plays a sacrificial role, also slows down the oxidation, while CuNP catalyses the oxidation. In this work, we present a detailed analysis of the oxidation mechanism of colloidal CuNP inferred through spectroscopic methods (UV-visible and EPR) combined with oxygen uptake measurements, with emphasis on factors affecting the oxidative process.

Graphical abstract: Oxidation of copper nanoparticles in water: mechanistic insights revealed by oxygen uptake and spectroscopic methods

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 27 Nov 2012, accepted on 04 Feb 2013 and first published on 11 Feb 2013


Article type: Paper
DOI: 10.1039/C3DT32836H
Citation: Dalton Trans., 2013,42, 5832-5838
  •   Request permissions

    Oxidation of copper nanoparticles in water: mechanistic insights revealed by oxygen uptake and spectroscopic methods

    N. L. Pacioni, V. Filippenko, N. Presseau and J. C. Scaiano, Dalton Trans., 2013, 42, 5832
    DOI: 10.1039/C3DT32836H

Search articles by author