کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
186094 459607 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochromic and electrochemical capacitive properties of tungsten oxide and its polyaniline nanocomposite films obtained by chemical bath deposition method
ترجمه فارسی عنوان
خصوصیات خازنی الکترو کرومیکی و الکتروشیمیایی اکسید تنگستن و فیلمهای نانوکامپوزیت پلیانیلین آن به وسیله روش رسوب حمام شیمیایی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Polyanine and its nanocomposite WO3/PANI films were deposited on fluorine doped tin oxide (FTO) glass slides by simple chemical bath deposition method. The morphology structure of the composite film was studied using atomic force microscopy (AFM) and scanning electron microscopy (SEM), while the electrochemical capacitive properties were determined using cyclic voltammetry (CV), chronopotentiometry (CP) and electrochemical impedance spectroscopy (EIS). The WO3/PANI nano-composite exhibited multiple colors (electrochromism) during the CV scans, from brownish green to transparent to light green then back to brownish green. Surprisingly, the integration of the PANI with the WO3 led to synergistic performance of nanohybrid wherein a true electrochemical double layer capacitor was obtained. Also, interestingly and unlike literature reports, the CBD method led to excellent capacitance retention (>98%) of the PANI even at 1000 continuous cycles. This work demonstrates that simple CBD can be used to get WO3/PANI films that give good electrochromism and pseudo-capacitance comparable to the ones obtained by other methods. Hence the obtained nanocomposite film of WO3/PANI can be a promising material for electrochromic and energy storage applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 128, 10 May 2014, Pages 218–225
نویسندگان
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