کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6616416 | 459630 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile synthesis of palladium-graphene nanocomposites and their catalysis for electro-oxidation of methanol and ethanol
ترجمه فارسی عنوان
سنتز پوسیدگی نانوکامپوزیتهای پالادیوم گرافن و کاتالیزور آنها برای الکترو اکسیداسیون متانول و اتانول
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Well-dispersed Pd nanoparticles (PdNPs) supported on graphene sheets were successfully prepared by a simple one-pot process, in which the reduction of Poly Vingl Pyrrolidone-functionalized graphite oxide and Pd precursor was carried out simultaneously using ascorbic acid as a soft reductant. The Pd nanoparticles decorated graphene composite (PdNPs/PVP-graphene) was characterized by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. Morphology and structure characterizations directly showed that Pd nanoparticles with crystallite size of about 8.5Â nm were evenly formed on graphene. Catalysis activity as in fuel cells was investigated by further electrochemical experiments including cyclic voltammograms and chronoamperometric measurements. Compared to the commercial Vulcan XC-72 supported Pd nanoparticles, PdNPs/PVP-graphene exhibits superior electrocatalytic activity and stability toward electro-oxidation of alcohols, showing its potential use as new electrode material for direct alcohol fuel cells (DAFCs).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 109, 30 October 2013, Pages 570-576
Journal: Electrochimica Acta - Volume 109, 30 October 2013, Pages 570-576
نویسندگان
Yuting Zhang, Honghui Shu, Gang Chang, Kai Ji, Munetaka Oyama, Xiong Liu, Yunbin He,