کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7716353 1497468 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bamboo shaped carbon nanotube supported platinum electrocatalyst synthesized by high power ultrasonic-assisted impregnation method for methanol electrooxidation and related density functional theory calculations
ترجمه فارسی عنوان
الکتروکاتورال پلاتین با استفاده از نانولوله کربنی شکل بامبو سنتز شده توسط روش اشباع بالا با استفاده از روش اولتراسونیک با قدرت بالا برای الکترو اکسیداسیون متانول و محاسبات تئوری کاربردی چگالی مرتبط
کلمات کلیدی
دوپینگ نیتروژن، نانولوله های کربنی بامبو شکل، اولتراسوند قدرت بالا، الکترو اکسیداسیون متانول،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Carbon nanotubes (CNTs) with special forms may exhibit novel properties, which are different compared to conventional carbon nanotubes and may open a way for future applications. The nanotubes with a bamboo-like structure due to nitrogen doping have been well studied because of the increased attention for their bamboo shaped structure associated properties. In this work, bamboo shaped carbon nanotubes (BCNTs), synthesized by chemical vapor deposition (CVD) method, were investigated for direct methanol fuel cells (DMFC). Small sized platinum nanoparticles (Pt NPs) were dispersed onto BCNT surface through a high power ultrasonic-assisted impregnation method in a short time. The structure and nature of the resulting Pt NP coated BCNT composites (Pt/BCNTs) were characterized by Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Energy dispersive spectroscopy (EDS). Density functional theory (DFT) calculations of Pt NPs coated on different structural CNTs showed that inclusion of nitrogen improved the catalytic performance of carbon nanotubes toward methanol electrooxidation. High electrochemical activity of BCNTs supported Pt NPs was demonstrated by the electrochemical studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 5, 9 February 2015, Pages 2216-2224
نویسندگان
, , , ,