346 research outputs found
Phthalocyanines and porphyrins linked to gold adatoms and their catalytic property towards hydroxide oxidation
Electrochemical deposition of 5,10,15,20-tetrakis-(4-sulphonatophenyl) porphyrin and its Co(II) derivative at a gold microelectrode array
Electrochemical deposition of a copper carboxylate layer on copper as potential corrosion inhibitor
Carboxylic acids and sodium carboxylates are used to protect metals against aqueous and atmospheric corrosion. In this paper we describe the application of a layer of copper carboxylate on the surface of a copper electrode by means of cyclic voltammetry technique, and tests which measure the corresponding resistance to aqueous corrosion. Unlike the soaking process, which also forms a film on the surface, the use of cyclic voltammetry allows one to follow the deposition process of the copper carboxylates onto the electrode. The modified electrodes have been characterized with infrared spectroscopy. In addition the corrosion resistance of the film has been investigated using polarization resistance and Tafel plot measurements
Comparison between the electrocatalytic properties of different metal ion phthalocyanines and porphyrins towards the oxidation of hydroxide
Elektrochemische studie van een goudelektrodeoppervlak gemodificeerd door het immobiliseren van transitiemetaalionftalocyanines en -porfyrines
The use of lead dodecanoate as an environmentally friendly coating to inhibit the corrosion of lead objects : comparison of three different deposition methods
Electrochemical and spectroscopic characterization of a gold electrode modified with 3,4 ',4 '',4 '' copper(II) tetrasulphonated phthalocyanine
The electrochemistry of a gelatin modified gold electrode
This paper discusses the electrochemical behaviour of gelatin coated gold electrodes in physiological pH conditions in a potential window -1.5 till 1.0 V vs SCE by performing cyclic voltammetry. A comparison is made between gelatin A and gelatin B, which have respectively a positive and a negative net charge at physiological pH. The deposition of gelatin onto the gold surface is confirmed by means of attenuated total reflection-infrared (ATR-IR) spectroscopic analyses
Comparison of different surface modification techniques for electrodes by means of electrochemistry and micro synchrotron radiation X-ray fluorescence : dimerization of cobalt(II) tetrasulfonated phthalocyanine and its influence on the electrodeposit ion on gold surfaces
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