The continuous in situ laser-induced catalysis proceeding via generation and growth of nano-sized copper particles was discussed. Also, the simple and lost-cost method for manufacturing of microstructural copper electrodes was proposed. The electrochemical properties of these electrodes were studied by cyclic voltammetry and impedance spectroscopy. The surface of the deposited copper structures (electrodes) was investigated by X-ray photoelectron spectroscopy and atomic force microscopy. These microstructures are highly conductive and porous with a dispersion of pore size ranging from 50 nm to 50 μm. An analytical response of the fabricated copper electrode is 30 times higher than those observed for a pure bulk copper with similar geometric parameters. A study of sensory characteristics for hydrogen peroxide determination showed that the value of Faraday current at the fabricated copper electrode is 2-2.5 orders of magnitude higher than for etalon one.

Date Published: 9 November 2016
PDF: 10 pages
Proc. SPIE 10018, Advanced Laser Processing and Manufacturing, 100180E (9 November 2016); doi: 10.1117/12.2245778

Published in SPIE Proceedings Vol. 10018:
Advanced Laser Processing and Manufacturing
Minlin Zhong; Jonathan Lawrence; Minghui Hong; Jian Liu, Editor(s)