Morphological and electrochemical characterization of Ni–polyvinylchloride composites

Dávila, M.M.; Elizalde, M.P.; González, Miguel A.; Pérez, Mario Arturo Ortíz; Silva, R

doi:10.1016/s0013-4686(98)00253-9

Cited by 9 publications

(9 citation statements)

References 42 publications

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“…1c). The last is due to the different surface composition, morphology and structure of Ni-PVC and Ni-foil as it has been reported earlier [34]. The voltammograms of a 20 ppm RB5 dye solution recorded with Ni-PVC and Ni-foil at high cathodic potentials are presented in Fig.…”

Section: Electrochemical Measurementsmentioning

confidence: 60%

“…Ni and Co powder (2.2 -3.2 µm) from Alfa Aesar and polyvinylchloride (PVC) from Fluka were used for the preparation of the composites Ni-PVC and Co-PVC. An excess of Ni or Co metallic powder was dispersed in a solution of PVC, using the necessary and minimum amount of THF to obtain a paste [34,37].…”

Section: Materials and Reagentsmentioning

confidence: 99%

“…Nevertheless, the performance of non-conventional electrodes as metal-polymer can also be explored. We have reported that the composites metal-polymer can be used as electrodes for electrochemical studies [32][33][34][35][36][37]. In particular, the dyes Reactive Black 5 and Basic Yellow 28 are among the most commonly used dyestuffs to dye cotton and polyacrylonitrile, and are therefore common industrial pollutants.…”

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confidence: 99%

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Degradation of Reactive Black 5 and Basic Yellow 28 on Metallic-Polymer Composites

Méndez¹,

Tovar²,

Dávila³

et al. 2007

Port. Electrochim. Acta

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The textile dyes Reactive Black (RB5) and Basic Yellow 28 (BY28) were individually exposed to electrochemical treatment in 0.1 M KOH and in phosphate buffer solution pH 5.1, respectively. The cathodic decolorization of the azo dye RB5 was carried out using a Ni-polyvinylchloride composite. The methine dye BY28 was anodically treated on a Co-polyvinylchloride. The electrochemical study of the dye solution was carried out by repetitive cyclic voltammetry (RCV) under potentiostatic conditions in stationary and flow regime. The effect of various experimental parameters, such as potential and electrolysis time was investigated. The studies showed that for the RB5 (20 to 80 ppm) dye solutions, around 98 % of the color was removed after 60 min treatment at -3.0 V vs. SCE. It was also demonstrated that for the BY28 (15 ppm) dye solution, 6-10 cycles or low potentials (-300 mV) during 200 min electrolysis were sufficient for the decolorization of the solution. However, COD and TOC values did not decrease.

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Section: Electrochemical Measurementsmentioning

confidence: 60%

Section: Materials and Reagentsmentioning

confidence: 99%

mentioning

confidence: 99%

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Degradation of Reactive Black 5 and Basic Yellow 28 on Metallic-Polymer Composites

Méndez¹,

Tovar²,

Dávila³

et al. 2007

Port. Electrochim. Acta

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“…1A). It has been reported that electrode prepared using metal-PVC powder produced an electrode with a very rough surface, irregular and formed a lamellar orientated particles [4][5][6]. Fig.…”

Section: Electrochemical Testsmentioning

confidence: 99%

“…One of the techniques of making the porous electrode is by incorporating polymer material like polyvinyl chloride (PVC) with the powder of respected metals [2][3][4][5][6]. As being the transition elements, with their electronic layer d incomplete, these metals have shown good electrocatalytic properties for the oxygen reduction reaction (ORR) and electrooxidation of organic compounds in alkaline solution.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Ni-Co-PVC and Ni-Cu-PVC Alloys Prepared By Mechanical Alloying Technique (MAT)~!2008-04-10~!2008-07-03~!2008-08-05~!

Riyanto¹,

Othman²

2010

TOMSJ

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Abstract:A study was carried out to characterize Ni-Co-PVC and Ni-Cu-PVC composite materials prepared by mechanical alloying technique (MAT) using SEM, EDS and electrochemical test. Composite materials were prepared by mixing together 95% of metal powder (Ni+Co or Ni+Cu) with 5% PVC. PVC was used as a binder and tetrahydrofuran (THF) was used as a solvent in composite material preparation. Based on the SEM and EDS studies on those composite materials, both Ni-Co-PVC and Ni-Cu-PVC composite materials were found to be homogeneous and composed of aggregation of nickel and Co particles separated by gaps of PVC. The electrochemical test found that the response is very good in KOH and ethanol solution. Based on the CV, Ni-Co-PVC and Ni-Cu-PVC composite materials showed a synergistic effect as the electrocatalyst. Applications of these materials are as an electrode for electrocatalyst in fuel cell and for electrosynthesis of organic compounds.

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Composite materials for electrochemical applications

Chung

2003

Engineering Materials and Processes

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Morphological and electrochemical characterization of Ni–polyvinylchloride composites

Cited by 9 publications

References 42 publications

Degradation of Reactive Black 5 and Basic Yellow 28 on Metallic-Polymer Composites

Degradation of Reactive Black 5 and Basic Yellow 28 on Metallic-Polymer Composites

Characterization of Ni-Co-PVC and Ni-Cu-PVC Alloys Prepared By Mechanical Alloying Technique (MAT)~!2008-04-10~!2008-07-03~!2008-08-05~!

Composite materials for electrochemical applications

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