Zobrazeno 1 - 10
of 48
pro vyhledávání: '"S. Belcadi"'
Autor:
P. Tochon, I. El Amrani El Hassani, Sanae Naamane, C. Delord, Amin Bennouna, M. Karim, S. Belcadi
Publikováno v:
Solar Energy. 108:41-50
During their operation in Concentrated Solar Power plants (CSP), solar reflectors are exposed to harsh climatic conditions which cause their degradation. Surface damage caused by direct impact or by mechanical contact cleaning is among phenomena that
Autor:
B. Belqat, S. Belcadi
Publikováno v:
MATEC Web of Conferences, Vol 149, p 01092 (2018)
Many kinds of rare earth elements (REE) such as europium and cerium have been make them essential elements in many high-tech components. The electrochemical studies can be presented as an interesting indication for europium and cerium extraction from
Publikováno v:
Journal of Fluorine Chemistry. 105:1-5
Electrochemical behaviour of iron ions on a gold electrode in H 3 PO 4 and in H 3 PO 4 –HF solutions was studied to access the influence of fluoride ion on the electrochemical properties. Voltammetric and potentiometric studies showed that the Fe(I
Publikováno v:
Journal of Applied Electrochemistry. 29:1171-1176
Electroless Ni–Zn–P alloy deposition from a sulphate bath, containing sodium hypophosphite as reducer, was investigated. To increase the plating rate, the deposition parameters were optimized. The effect of process parameters (T, pH and [Zn2+]) o
Autor:
Michel Ribes, Philippe Papet, S. Belcadi, J. Sarradin, K. El-kacemi, Annie Pradel, A. Guessous
Publikováno v:
Scopus-Elsevier
Chemical microsensors for the detection of Cd2+ ions in solution were prepared. The sensitive membranes are chalcogenide glasses from the CdSAgISb2S3 system. Physical, chemical and electrochemical characteristics of the sensors are presented. Q
Publikováno v:
Journal of Applied Electrochemistry. 28:725-735
Electrosynthesis of peroxodiphosphate ions (P2O84−) was performed in 2m K3PO4, 1m K2HPO4 medium, using a platinum anode. The results showed that under conditions of potentiostatic polarization at constant potential, the reaction rate reaches a maxi
Publikováno v:
New Journal of Chemistry. 22:643-647
Le domaine d'e′lectroactivite′ des acides phosphoriques condense′s a e′te′ de′termine′ pour une e′lectrode en or. Les e′tudes e′lectrochimiques par voltampe′rome′trie cyclique ont montre′ qu'il se produit une oxydation parti
Publikováno v:
Journal de Chimie Physique. 93:373-385
Ce travail s'inscrit dans le cadre d'un effort de recherche portant sur la modelisation des proprietes des melanges binaires H 2 O-H 2 SO 4 . Plus precisement, on montre ici que l'on peut decrire a la fois les proprietes d'exces (coefficient osmotiqu
Publikováno v:
Matériaux & Techniques. 82:25-29
An electrochemical test which measure the porosity of a nickel deposit on copper substract is described. In this method, the sample is treated anodically in such conditions that the current passed almost entirely via the basis metal exposed in pores.
Publikováno v:
Journal of Electroanalytical Chemistry. 339:1-12
Modified electrodes with tetrasulphonated iron phthalocyanine (FeTSPc) intercalated in a conducting polymer film were prepared and studied by cyclic voltammetry. Such electrodes present a good electrocatalytic activity for the electroreduction of oxy