کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7705549 | 1497296 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reduced graphene oxide-poly-(2-(dimethylamino)ethyl methacrylate)-Pt/Ag nanoscrolls and its electrocatalytic performance for oxidation of methanol
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
The reduced graphene oxide-poly-(2-(dimethylamino)ethyl methacrylate)-Pt/Ag (RGO-PDMAEMA-Pt/Ag) nanoscrolls were formed by rolling up the RGO-PDMAEMA-Pt/Ag sheets under freezing conditions. The composition and structure of RGO-PDMAEMA-Pt/Ag sheets and nanoscrolls are characterized. RGO-PDMAEMA-Pt/Ag nanoscrolls showed high electrocatalytic performance of methanol owing to the synergistic effect of Pt/Ag NPs and the long stability caused by the PDMAEMA which effectively avoid the aggregation and falling of Pt/Ag NPs and the unique scrolled structure. The ESCA value of RGO-PDMAEMA-Pt/Ag nanoscrolls for Pt is 891Â cm2/mg, which is 1.28 times higher than that of the RGO-PDMAEMA-Pt/Ag sheets (698Â cm2/mg) and the ratio of the forward oxidation peak current (If) to the reverse peak current (Ib), (If/Ib) is about 1.25. The good electrochemical results indicate the RGO-PDMAEMA-Pt/Ag nanoscrolls are promising electrocatalysts for direct methanol fuel cell.176
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 29, 19 July 2018, Pages 13440-13449
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 29, 19 July 2018, Pages 13440-13449
نویسندگان
Xiaoguang Jin, Xiaobei Wang, Yue Zhang, Hefang Wang, Yongfang Yang,