Electrocatalytic activity of polyaniline-copper composites in electrohydrogenation of p-nitroaniline

Ivanova, N. M.; Soboleva, E. A.; Visurkhanova, Ya. A.; Kirilyus, I. V.

doi:10.1134/s1023193515020056

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…The AF‐polymers filled with metal ions or their micro‐ and nanoparticles or other metal components can be applied as catalysts in various catalytic and electrocatalytic processes. The possibility of using the polymer‐metal composites based on conductive polyaniline and non‐conductive melamine‐formaldehyde polymer as catalysts in electrohydrogenation of organic compounds has been shown in our early works …”

Section: Methodsmentioning

confidence: 94%

Structure and Electrocatalytic Activity of Aniline-formaldehyde Polymer Doped with Copper(II) Chloride

et al. 2016

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Copper-containing composites ofaniline-formaldehyde polymer (AFP) are prepared by introduction of CuCl 2 in situ of polycondensation of aniline with formaldehyde and by the impregnating method. Theinfluence of synthesis conditions on phase structure, copper content and electrocatalytic activity of the composites is investigated. The presence of copper oxides (CuO, Cu 2 O) and 2CuCl 2 ·5Cu(OH) 2 ·H 2 O complex compoundis determinedby XRD analysis in composites obtained by the first and second method, respectively. AFP + CuCl 2 composites are tested on electrocatalytic activity in electrohydrogenation of onitroaniline. It is shown that composites prepared by the impregnating method possess higher activity as electrocatalysts in this process.The incorporation of metal-containing inorganic compounds (oxides, hydroxides, metal salts and their nanoparticles) into polymeric matrix allows the obtaining of new composites possessing the specific physicochemical properties: optical, conductive, magnetic, catalytic, etc. [1,2] Various polymers with functional groups in their structure are able to interact with molecules of these compounds and by the way to stabilize their nanoparticles. The structure of aniline-formaldehyde (AF) polymers contains amino groups possessing strong ability to the coordination coupling with atoms and metal ions, therefore it is possible to produce the polymer-metal composites with various properties on the basis of these AF-polymers.Aniline-formaldehyde polymers (or resins) are thermoreactive or thermoplastic products of aniline and formaldehyde interaction. [3] The cured AF-resins are resistant to effect of water, alkalis, oils, but they are decomposed by strong acids. As for electrical insulation properties they are outperform the melamine-, urea-and phenol-formaldehyde resins. AF-polymers are wide used in production of electrotechnical plastics and components for radio-and high-frequency electrical engineer-ing. They are successfully applied as chemically resistant materials in different alkaline solutions.As is evident from the literary search, to produce metal-aniline-formaldehyde composites the impregnating method (or more exactly the method of metal cations sorption with AFpolymers from aqueous solution of its salts) has been taken. In this connection the metal sorption is performed not for the creation of polymer metal composites and their following application, but for the study of possibilities of concentrating or removal of toxic metals from polluted waters of the environment, i. e. to apply the AF-polymers as sorbents. For example, it is known about the researches of chrome ions (Cr VI and Cr III ) sorption by the AF-polymer deposited on silica gel [4] or by microspheres of AF-polymer modified with simple alcohols. [5] In the first case, it has been defined that pH 3 is an optimal value for sorption of chrome ions and sorption capacity of AFP/silica gel makes up 65 mg/g at initial concentration of Cr VI of 200 mg·L À1 . [4] The second work has been shown that sorption of Cr VI and Cr I...

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Section: Methodsmentioning

confidence: 94%

Structure and Electrocatalytic Activity of Aniline-formaldehyde Polymer Doped with Copper(II) Chloride

et al. 2016

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“…Another paper uses as working electrode a CPE modified with 6,7,9,10,17,18,19,20,21,22-decahydrodibenzo[h,r] [1,4,7,11,15] trioxadiazacyclonanodecine-16,23-dione (DTD)/ silver nanoparticles (AgNPs) [21]. Wushuang Bai, Qinglin Sheng, Xiaoyan Ma, and Jianbin Zheng developed a new method of production of silver nanoparticles (AgNPs) modified with hydrophobic polyhedral oligomeric silsesquioxane (POSS) and graphene oxide (GO) nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

“…Nitro aromatic amines are important industrial intermediates in the production of dyes, polymers (e.g., polyurethanes), hardening agents for epoxy resins, pesticides, antioxidants, drugs, explosives, and anti-corrosive materials [1][2][3][4]. One important compound of this class is 4-nitroaniline (4-NA).…”

Section: Introductionmentioning

confidence: 99%

Differential pulse voltammetric determination of 4-nitroaniline using a glassy carbon electrode: comparative study between cathodic and anodic quantification

et al. 2015

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Differential pulse voltammetry with a glassy carbon electrode was used for the determination of trace amounts of 4-nitroaniline in Britton-Robinson buffer at pH 2.0 as an optimal base electrolyte. 4-Nitroaniline can be determined by differential pulse voltammetry directly using either its electrochemical oxidation or reduction. The calibration curve was measured for both reactions in the same concentration range from 2 to 100 lmol dm -3 . The calculated limits of detection and quantification are 0.2 and 0.7 lmol dm -3 (RSD 6.62 % and R 2 = 0.9906 for n = 5) for cathodic reduction and 0.3 and 1.0 lmol dm -3 (RSD 7.62 % and R 2 = 0.9995 for n = 5) for anodic oxidation. Graphical abstract

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Polyaniline-Based Composites and Nanocomposites

Ran

Tan

2018

Polyaniline Blends, Composites, and Nanocomposites

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Electrocatalytic activity of polyaniline-copper composites in electrohydrogenation of p-nitroaniline

Cited by 13 publications

References 17 publications

Structure and Electrocatalytic Activity of Aniline-formaldehyde Polymer Doped with Copper(II) Chloride

Structure and Electrocatalytic Activity of Aniline-formaldehyde Polymer Doped with Copper(II) Chloride

Differential pulse voltammetric determination of 4-nitroaniline using a glassy carbon electrode: comparative study between cathodic and anodic quantification

Polyaniline-Based Composites and Nanocomposites

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