کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7713444 | 1497428 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC) Preparation, characterisation and application of Pd/C nanocatalyst in passive alkaline direct ethanol fuel cells (ADEFC)](/preview/png/7713444.png)
چکیده انگلیسی
This work describes the use of Pd nanocatalyst on Vulcan XC-72 (at a very low loading, 8 wt% Pd) in passive alkaline direct ethanol fuel cell (ADEFC). The average Pd particle size obtained with TEM was 3.5 ± 0.5 nm. The XRD results of the prepared Pd nanocatalysts showed the dominant fcc structure. The catalytic activity towards ethanol electro-oxidation in various concentrations of KOH was evaluated in the half-cell tests by cyclic voltammetry and chronoamperometry. Improved performance and stability on Pd/C was observed when the [hydroxyl]/[ethanol] = 1. The Pd/C nanocatalyst performance in ADEFC under passive state showed enhanced maximum current and power densities in 5 M KOH. 5 M ethanol showed power density of 7 mW cmâ2 and maximum current density of 33 mA cmâ2 in 1 M KOH. While at higher KOH concentration of 5 M, 5 M ethanol showed improved power density of 17 mW cmâ2 and 90 mA cmâ2 current density as well as stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 45, 7 December 2015, Pages 15605-15612
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 45, 7 December 2015, Pages 15605-15612
نویسندگان
Remegia M. Modibedi, Thembelihle Mehlo, Kenneth I. Ozoemena, Mkhulu K. Mathe,