A New PC and LabVIEW Package Based System for Electrochemical Investigations

Stević, Zoran; Andjelkovic, Zoran; Antić, Dejan

doi:10.3390/s8031819

Cited by 30 publications

(17 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The system for electrochemical measurements consisted of hardware (PC, AD-DA converter NI-6251 produced by National Instruments [Austin, TX] and analog interface) and software for excitation and measurement (Lab-VIEW 8.2 platform and application software; National Instruments) both fully developed by Technical Faculty in Bor. [43] Good reproducibility was proved by repeating the experiments under the same conditions. The samples were prepared by the PM process using electrolytic copper powder and silver powder with purities of 99.7 and 99.9 pct, respectively (the silver powder content in the mixture was 4 at.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical Behavior of Sintered CuAg4 at. pct Alloy

Rajčić-Vujasinović

Nestorovic

Grekulović

et al. 2010

Metall Mater Trans B

Self Cite

View full text Add to dashboard Cite

MIRJANA RAJČ IĆ -VUJASINOVIĆ , SVETLANA NESTOROVIĆ , VESNA GREKULOVIĆ , IVANA MARKOVIĆ , and ZORAN STEVIĆ The electrochemical characteristics of sintered CuAg4 at. pct alloy in different stages of synthesis and thermomechanical treatment were examined by cyclic voltammetry in a NaOH medium. On the voltammograms recorded at the sintered alloy, six current waves can be noticed at the anodic part, and six corresponding current waves are observed at the cathodic part. A possible electrochemical reaction is attributed to each wave. The effect of the potential reversing limit was used to distinguish the correlation between the anodic and cathodic peaks. After the deformation with 60 pct deformation degree, the alloy becomes more corrosion resistant, whereas the corrosion mechanism remains the same as before mechanical treatment. Subsequent anneal of the deformed alloy at 533 K (260°C) for 150 minutes leads to the hardening effect. At the same time, the alloy remains corrosion stable, and some of the current waves present at the other voltammograms are hardly noticeable here. Also, we propose our own model of oxide layer formation on the surface of a Cu-Ag alloy.

show abstract

Section: Methodsmentioning

confidence: 99%

Electrochemical Behavior of Sintered CuAg4 at. pct Alloy

Rajčić-Vujasinović

Nestorovic

Grekulović

et al. 2010

Metall Mater Trans B

Self Cite

View full text Add to dashboard Cite

show abstract

“…[21]. The use of VI under the graphical LabVIEW environment is advantageous for electrochemical measurements due to the flexible programming and the easyto-use, reliable and expandable instruments obtained [22,23].…”

Section: Software For Data Collectionmentioning

confidence: 99%

Multisensor Portable Meter for Environmental Applications

et al. 2015

View full text Add to dashboard Cite

In recent years the development of information and communication technologies (ICT) has notably improved the water management processes, but the technologies for water quality control still leave much scope for improvement. Specially, in-situ and in-line water monitoring has an increasing interest in order to take decisions at real time. The main drawbacks of the current portable meters are their high cost and their high power consumption. In this work it is proposed a portable compact meter for measuring simultaneously oxidation-reduction potential (ORP), conductivity, temperature and amperometric parameters like chlorine. This system includes microsensors fabricated with microelectronic technologies, and a commercial temperature sensor, all them allowing a very low power consumption. Validation of the system has been carried out using standard solutions and comparing the results with commercial sensors. The response characteristics of sensors, in terms of sensitivity and repeatability, showed a good agreement with those obtained with standard equipment using the same microelectrodes.Index Terms-Portable equipment, microsensors, water monitoring, multiparametric analysis. 1530-437X (c)

show abstract

“…− elektrohemijske ćelije sa tri elektrode (radna, referentna i pomoćna), − hardvera (PC, AD/DA konvertor PCI-20428 W proizveden od strane Burr-Brown-a i analogni interfejs razvijen na Tehičkom fakultetu u Boru) [36], − softvera za merenje i upravljanje (LabVIEW 6 platforma i specijalno razvijena aplikacija za elektrohemijska merenja).…”

Section: Eksperimentalni Deounclassified

Electrochemical behavior of Ag-Cu alloy in alkaline media

Grekulovic¹,

Rajčić-Vujasinović²,

Stević³

2010

Hem Ind

View full text Add to dashboard Cite

Results of the investigation of electrochemical behaviour of Ag-Cu alloy containing 50 mass% Ag and 50 mass% Cu are presented in this paper. Pure silver and copper were investigated, too. Working electrodes were prepared by metallurgical process. 1 mol dm-3 and 0.5 mol dm-3 solutions of NaOH are chosen as the electrolyte. On the cyclic voltammograms, some current waves corresponding to number and quantity of phases present in the investigated electrodes appeared and they can be used for characterization of investigated alloy. On the voltammogram recorded for pure silver, two anodic and two cathodic peaks appeared. First peak consisted of two joined current waves which can be ascribed to the formation of the two different types of silver(I) oxide, Ag2O. Second peak should correspond to the formation of silver(II) oxide, AgO. Voltammogram obtained for pure copper exhibits one broad current wave corresponding to the formation of copper oxides, followed by a wide potential area in which copper is completely passive. At 0.4 V vs. SCE, current starts to increase again due to oxygen evolution and probably due to simultaneous dissolution of copper with formation of CuO22- as a product. In alkaline solutions copper has no significant influence on the shape and current values of the voltammograms recorded for Ag-Cu alloy; however, it has an influence only on the anodic and cathodic peak potentials, which are shifted to more negative values in comparison to Ag. It could mean an easier formation of oxides and their harder reduction. Comparing voltammograms recorded for Ag-Cu alloy in 0.5 moldm-3 NaOH and in 1 moldm-3 NaOH solutions, one can see that current waves appear at more positive potentials on the voltammograms obtained in the solution of lower concentration and with much higher current densities than those on the voltammograms obtained in the solution of higher concentration

show abstract

A New PC and LabVIEW Package Based System for Electrochemical Investigations

Cited by 30 publications

References 6 publications

Electrochemical Behavior of Sintered CuAg4 at. pct Alloy

Electrochemical Behavior of Sintered CuAg4 at. pct Alloy

Multisensor Portable Meter for Environmental Applications

Electrochemical behavior of Ag-Cu alloy in alkaline media

Contact Info

Product

Resources

About