Next Article in Journal
Asymptotic Effectiveness of the Event-Based Sampling According to the Integral Criterion
Article Menu

Export Article

Open AccessArticle
Sensors 2007, 7(1), 1-15; doi:10.3390/s7010001

Determination of Critical Conditions for the Formation of Electrodeposited Copper Structures Suitable for Electrodes in Electrochemical Devices

1
ICTM – Institute of Electrochemistry, University of Belgrade, Njegoseva 12, P.O.B. 473, 11001 Belgrade, Serbia
2
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, P.O.B. 3503, 11001 Belgrade, Serbia
*
Author to whom correspondence should be addressed.
Received: 27 October 2006 / Revised: 12 December 2006 / Accepted: 15 December 2006 / Published: 1 January 2007
View Full-Text   |   Download PDF [1521 KB, uploaded 21 June 2014]   |  

Abstract

Electrodeposition of copper from acid sulfate solutions at overpotentials on theplateau of the limiting diffusion current density and at higher overpotentials wasexamined. The average current efficiencies for hydrogen evolution reaction aredetermined by a measurement of the quantity of evolved hydrogen and the overallelectrodeposition current as a function of electrodeposition time, while morphologies ofcopper deposits are examined by the use of the scanning electron microscopy (SEM)technique. It is found that the open and porous structures of copper deposits (denoted andas honeycomb – like copper structures), suitable for electrodes in electrochemical devicessuch as fuel cells and chemical sensors, were reached by electrodeposition processesfrom solutions with the lower concentrations of Cu (II) ions (0.15 M CuSO4 and less in0.50 M H2SO4) at overpotentials outside the plateau of the limiting diffusion currentdensity at which the quantity of evolved hydrogen was enough to change hydrodynamicconditions in the near – electrode layer. The main characteristics of these copperstructures were craters or holes formed primarily due to the attachment hydrogen bubbleswith agglomerates of copper grains between them. View Full-Text
Keywords: Electrodeposition; Copper; Hydrogen evolution; Sensors; Scanning electron microscope (SEM) Electrodeposition; Copper; Hydrogen evolution; Sensors; Scanning electron microscope (SEM)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Nikolic, N.D.; Popov, K.I.; Pavlovic, L.J.; Pavlovic, M.G. Determination of Critical Conditions for the Formation of Electrodeposited Copper Structures Suitable for Electrodes in Electrochemical Devices. Sensors 2007, 7, 1-15.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top