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- W1964304864 abstract "Abstract Gold nanoparticles (Aunp) embedded in methyltrimethoxysilane sol–gel (SG) film coated electrode was prepared (GC/SG-Aunp) and characterized. The electrochemical response observed for the GC/SG-Aunp electrode reveals that the dispersed gold nanoparticles in the silicate film are in electrical contact with each other. The potassium ferricyanide redox couple was used as a marker to probe the tunable kinetic barrier of the gold nanoparticles dispersion in the silicate matrix. The GC/SG-Aunp electrode showed good electrocatalytic response for hydrogen peroxide (H2O2) reduction without an enzyme or mediator immobilized in the silicate sol–gel film. Linear relationship was observed for H2O2 reduction in the concentration range from 2.5 to 45 μM at the GC/SG-Aunp electrode at an applied potential of −0.5 V and the detection limit was calculated as 3.15 nM. The GC/SG-Aunp modified electrode is simple to prepare and this electrode shows fast response, good stability and reproducible results and could be applied as an amperometric sensor for H2O2." @default.
- W1964304864 created "2016-06-24" @default.
- W1964304864 creator A5039164373 @default.
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- W1964304864 date "2007-09-01" @default.
- W1964304864 modified "2023-10-18" @default.
- W1964304864 title "Gold nanoparticles embedded in silica sol–gel matrix as an amperometric sensor for hydrogen peroxide" @default.
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- W1964304864 doi "https://doi.org/10.1016/j.jelechem.2007.05.009" @default.
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