Journal of Power Sources, Vol.254, 224-231, 2014
Characterisation of embroidered 3D electrodes by use of anthraquinone-1,5-disulfonic acid as probe system
New electrode designs are required for electrochemical applications such as batteries or fuel cells. Embroidered 3D Cu porous electrodes with a geometric surface of 100 cm(2) are presented and characterised by means of the anthraquinone-1,5-disfulfonic acid (AQDS(2-)) redox system in alkaline solution. The electrochemical behaviour of the 3D electrode is established by the comparison of cyclic voltammetry responses using a micro cell and a 100 cm2 plane Cu-plate electrode. Dependencies of the peak currents and peak-to-peak potential separation on scan rate and AQDS(2-) concentration are studied. The AQDS(2-) characterisation is also performed by means of spectroelectrochemical experiments. (c) 2014 Elsevier B.V. All rights reserved.