کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10269478 | 459861 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation, characterization and electrocatalytic properties of poly(luminol) and polyoxometalate hybrid film modified electrodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Hybrid films composed of poly(luminol) and nanometer-sized clusters of polyoxometalate, SiMo12O404â and PMo12O403â have been prepared in acidic aqueous solutions. These films are stable and electrochemically active, and produced on glassy carbon, platinum, gold and transparent semiconductor tin oxide electrodes. The electrochemical quartz crystal microbalance and cyclic voltammetry were used to study in situ growth of the hybrid poly(luminol)/SiMo12O404â and poly(luminol)/PMo12O403â. Both the poly(luminol)/SiMo12O404â and poly(luminol)/PMo12O403â hybrid films showed four redox couples and the electrochemical properties were compared to SiMo12O404â and PMo12O403â. When transferred to various acidity aqueous solutions, the four redox couples and the formal potentials of two hybride film were observed to be pH-dependent. The electrocatalytic reduction of ClO3â, BrO3â, IO3â, S2O82â and NO2â by a poly(luminol)/PMo12O403â hybrid film in an acidic aqueous solution showed an electrocatalytic reduction activity of IO3â > BrO3â and ClO3â. The electrocatalytic oxidation of dopamine and epinephrine by a poly(luminol)/PMo12O403â hybrid film was also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 3, 20 October 2005, Pages 450-461
Journal: Electrochimica Acta - Volume 51, Issue 3, 20 October 2005, Pages 450-461
نویسندگان
Yu-Tsern Chang, Kuo-Chiang Lin, Shen-Ming Chen,