کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7737755 | 1497982 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of carbon incorporated Fe-N/carbons for methanol-tolerant oxygen reduction reaction of polymer electrolyte fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and characterization of carbon incorporated Fe-N/carbons for methanol-tolerant oxygen reduction reaction of polymer electrolyte fuel cells Synthesis and characterization of carbon incorporated Fe-N/carbons for methanol-tolerant oxygen reduction reaction of polymer electrolyte fuel cells](/preview/png/7737755.png)
چکیده انگلیسی
A simple method has been developed for synthesis of carbons incorporating FeNx electrocatalysts (FeNC/C-z) based on heat treatment of nitrogen-rich species (pentaethylenehexamine) and iron precursors (FeCl3) on carbon blacks (Vulcan XC-72) under high temperature in a nitrogen atmosphere. These resulting catalysts have been fully characterized by various spectroscopic and analytical techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS). Results obtained from the polarization curves show that FeNC/C-3.1 possesses the surpassing electrocatalytic activity and the tolerance to methanol crossover during the oxygen reduction reaction (ORR) among all the FeNC/C-z catalysts, which may be due to their higher surface Fe/C and N/C atomic ratios as well as a dominant carbon incorporated FeNx (x â 4), as revealed from XPS and XAS spectroscopies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 250, 15 March 2014, Pages 279-285
Journal: Journal of Power Sources - Volume 250, 15 March 2014, Pages 279-285
نویسندگان
Shou-Heng Liu, Jyun-Ren Wu, Chun-Jern Pan, Bing-Joe Hwang,