Nanoparticles of TiO2-ZnO Modified Polystyrene-Acrylonitrile Characterization Using Glassy Carbon Electrode

Al-Mulla, Emad A. Jaffar

doi:10.5101/nbe.v10i1.p34-39

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…The influence of different temperatures on the new fabrication electrode was used the redox current peaks value of output potential using K 4 The activation energy which needed to oxidizing the Fe(II) to Fe(III) was found as E*=1.05 kJmol -1 K -1 with less value than using other electrodes such as grafted polymer electrode in the same operation as E*=1.75kJmol -1 K -1 [30]. Also, the stability of GPE at high temperature has high resistance than other working electrodes [31][32][33][34][35][36][37][38].…”

Section: The Influence Of Different Temperatures On the Cesmc 60mentioning

confidence: 99%

Copolymer electrode self-modified with fullerene C60

Radhi¹,

Al-Mulla²

2018

Epitoanyag - JSBCM

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A copolymer of polystyrene-acrylonitrile was modified with fullerene C 60 using gamma irradiation technique to produce a new copolymer with high quality in physical and chemical properties and using to fabrication a working electrode alternative for the modification of commercial working electrode in cyclic voltammetric technique (such as glassy carbon electrode, Pt, Au electrode). The new copolymer electrode self-modified with C 60 (CESMC 60) was characterized electrochemically by cyclic voltammetric method using a standard solution of 0.3 mM K 4 [Fe(CN) 6 ] in 1 M KCl to evaluate the redox current peaks of Fe(II)/Fe(III). The electrochemical and physical properties of the new fabrication electrode has good hardness, insoluble in aqueous and non-aqueous solvent, electrochemical stability, resistance to high temperatures and different pH. It was found that 0.3 mM of K 4 [Fe(CN) 6 ] in 1 M KCl of the new electrode at different concentration using reagent, scan rate, pH, temperature, electrolytes, stability and reliability. The new electrode was given encouraging properties for using in high-precision analysis and resuscitates commercial electrodes such as glassy carbon electrode, platinum electrode, gold electrode, and so on. Keywords: cyclic voltammetry, copolymer electrode modified C 60 , K 4 [Fe(CN) 6 ], redox process Kulcsszavak: ciklikus voltammetria, C 60 módosított kopolimer electróda, K 4 [Fe(CN) 6 ], redox eljárás

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Section: The Influence Of Different Temperatures On the Cesmc 60mentioning

confidence: 99%

Copolymer electrode self-modified with fullerene C60

Radhi¹,

Al-Mulla²

2018

Epitoanyag - JSBCM

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“…11 illustrates the SEM of the GP structure with silica nanoparticles. The silica nanoparticles were incorporated inside the GP structure [22][23][24][25][26].…”

Section: Effect Of Different Scan Ratesmentioning

confidence: 99%

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Radhi¹,

Moosa²,

Khalaf³

2018

Nano BioMed ENG

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A new modified glassy carbon electrode (GCE) with grafted polymer (GP)/SiO 2 nanoparticles (SiO 2 NPs) were prepared using mechanical attachment method to produce a new sensor in cyclic voltammetric technique. The new working electrode GP/SiO 2 NPs/GCE was characterized by a standard solution of 1 mM K 4 [Fe(CN) 6 ] with 1 M K 2 HPO 4 as an electrolyte to study the redox current peaks of FeII/FeIII ions at different concentrations such as scan rate, pH, determination of diffusion coefficient (D f), reliability and stability of the modified GCE. It was found that the new modified electrode enhanced the redox current peaks of FeII/FeIII from 12 µA to 20 µA and-5 µA to-15 µA for oxidation and reduction peaks in GCE, repectevely. So, the current ratio (Ipa/Ipc) for the new modified electrode was 1, and the potential peak separation (ΔEpa-c) was 100 mV, which indicated good electrochemical properties as an irreversible electrode and heterogeneous reaction. Good reliability and stability of modified GCE was obseved with low detection limit. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis of the nano-deposit was also studied.

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“…I-motif and anti-cancer drugs were studied by electrochemical techniques by using CV and differential pulse voltammetry (DPV) methods to determine and characterize saffron carotenoids on the modified electrode for treatment of the drugs [10,11]. Three natural drugs of crocin, kaempferol and podophyllotoxin were evaluated as antioxidant medicine by cyclic voltammetric technique using multi-walled carbon nanotube paste electrode (MWCNTPE) at acidic pH 4.5.…”

Section: Introductionmentioning

confidence: 99%

Saffron in KCl Mediated by Glassy Carbon Electrode Using Cyclic Voltammetry

Radhi¹,

Jawad²,

Al-Mulla³

2018

Nano BioMed ENG

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Saffron in aqueous solution was studied via electrochemical analysis with KCl as a supporting electrolyte using cyclic voltammetric technique to determine the redox current peaks at different concentration, pH and scan rate (SR). It was found that an oxidation current peak appeared at potential +268 mV and two reduction current peaks at −282 and −850 mV. The oxidation current peak of saffron disappeared in alkaline medium at pH = 12. An enhancement was observed in acidic medium at pH = 6. Based on Randel equations and by using different scan rates, the diffusion coefficient (D f) for oxidation-reduction current peaks of saffron in KCl solution was determined with nearly equal values as of 1.87×10 −5 and 1.12×10 −5 cm 2 /s, respectively. The results indicate a low detection limit of the different concentrations of saffron in KCl solution as determined from the calibration graph, and a high reliability revealed by the relative standard deviation (RSD). Stability of the GCE for oxidationreduction current peaks was recorded as ± 7.12% and ± 1.04%, respectively.

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Nanoparticles of TiO2-ZnO Modified Polystyrene-Acrylonitrile Characterization Using Glassy Carbon Electrode

Cited by 3 publications

References 11 publications

Copolymer electrode self-modified with fullerene C60

Copolymer electrode self-modified with fullerene C60

Performance Improvement of Working Electrode Using Grafted Polymer Modified with SiO2 Nanoparticles

Saffron in KCl Mediated by Glassy Carbon Electrode Using Cyclic Voltammetry

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