Modification of gold nanoparticles through allyl mercaptan bridge at boron-doped diamond electrode for an arsen (V) sensor
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چکیده
منابع مشابه
Decomposition of toxic organics by boron-doped diamond electrode
Organic phosphate pesticides are of great enviro-nmental concern primarily because they are toxic to mammals and birds, and are relatively soluble in water to contaminate surface water and groundwater [1,2]. In this study, the decomposition of phorate, a widely used organic phosphate insecticide, in aqueous solutions by Boron doped diamond(BDD) electrode was examined. The LD50 of phorate was re...
متن کاملSize-dependent electrocatalytic activity of gold nanoparticles on HOPG and highly boron-doped diamond surfaces.
Gold nanoparticles were prepared by electrochemical deposition on highly oriented pyrolytic graphite (HOPG) and boron-doped, epitaxial 100-oriented diamond layers. Using a potentiostatic double pulse technique, the average particle size was varied in the range from 5 nm to 30 nm in the case of HOPG as a support and between < 1 nm and 15 nm on diamond surfaces, while keeping the particle density...
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O objetivo deste trabalho é discutir a oxidação eletroquímica do ácido oxálico (AO), analisando a influência do NaCl e NaBr. Experimentos foram realizados em eletrodos de diamante dopados com boro (DDB), em meio alcalino. Eletrodos DDB têm uma baixa adsortividade superficial, portanto sua grande estabilidade frente à oxidação permite que a reação ocorra com reagentes e intermediários não adsorv...
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This paper presents the study of the electrochemical oxidation of the insecticide Methidathion organophosphorous pesticide, using a boron-doped diamond (BDD) anode. The influence of current density, sodium chloride concentration, temperature and initial Methidathion concentration on the rate of COD abatement has been followed. The electrolyses were performed by using a solution composed of an e...
متن کاملThe detection of nitrate using in-situ copper nanoparticle deposition at a boron doped diamond electrode.
Electrochemical deposition from a 0.1 M sodium sulphate solution, containing Cu2+ (adjusted to pH 3 with hydrochloric acid) produced a well defined copper nanoparticle deposit on the surface of a boron doped diamond electrode. Changing conditions such as potential (-0.8, -1.0 and -1.2 V), time (5, 2 and 0.5 s) and concentration of Cu2+ (500, 250 and 100 microM) was found to give copper nanopart...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2020
ISSN: 1757-899X
DOI: 10.1088/1757-899x/902/1/012013