Raman shift of silicon rubber-nano titania PMNC

Mutoki, Sabah Mohammed Mlkat al; Ghzawi, Baydaa Abul Hassan Khalaf Al; Amohsin, Samir M. Abdul; Al-Mulla, Emad A. Jaffar

doi:10.14382/epitoanyag-jsbcm.2017.4

Cited by 1 publication

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References 21 publications

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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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“…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%