کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
179874 459363 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile modification of ITO electrodes with functional materials through catalytic grafting of N-hydroxysuccinimidyl-ester-functionalized methallylsilane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Facile modification of ITO electrodes with functional materials through catalytic grafting of N-hydroxysuccinimidyl-ester-functionalized methallylsilane
چکیده انگلیسی

A facile method for the preparation of modified indium tin oxide (ITO) electrodes and their use in amperometric sensing of H2O2 are described. ITO surface was first derivatized by acid-catalyzed grafting of N-hydroxysuccinimidyl-ester-functionalized methallylsilane at room temperature, followed by immobilization of functional materials such as gold nanoparticle and thionine by amide coupling reaction. The modification process was monitored using contact angle, scanning electron microscopy and electrochemical measurements, which revealed the controllability and high efficiency of this modification method. Thionine-modified ITO electrode exhibited excellent electrocatalytic activity towards the reduction and amperometric determination of H2O2, demonstrating the potential of this modification strategy in electrocatalysis and amperometric sensing.

Figure optionsDownload as PowerPoint slideHighlights
► Facile method for the modification of ITO electrodes with functional materials through catalytic grafting of N-hydroxysuccinimidyl-ester-functionalized methallylsilane was demonstrated.
► Gold nanoparticles immobilized on ITO surface using this method were uniformly distributed and served as an effective electrode.
► Thionine-modified ITO exhibited excellent electrocatalytic activity towards the reduction and amperometric determination of H2O2.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 19, June 2012, Pages 123–126
نویسندگان
, , , , ,