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Au nano dendrites/composition optimized Nd-dopped cobalt oxide as an efficient electrocatalyst for ethanol oxidation | ||
| Iranian chemical communication | ||
| دوره 8، شماره 1، فروردین 2020، صفحه 102-111 اصل مقاله (1.02 M) | ||
| نوع مقاله: Original Research Article | ||
| شناسه دیجیتال (DOI): 10.30473/icc.2020.9788 | ||
| نویسندگان | ||
| Foroozan Hasanpour* 1؛ Masoumeh Taei1؛ Masoud Fouladgar2؛ Mehdi Salehi3 | ||
| 1Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Iran | ||
| 2Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran | ||
| 3Department of Chemistry, Semnan University, Semnan 35351-19111, Iran | ||
| چکیده | ||
| In this study, Nd-doped cobalt oxide (Nd-Co3O4) nanoparticles were prepared by a combustion synthesis procedure using Co(acac)3 complex. The nanoparticles were characterized by infrared spectroscopy (IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Then, the effect of Nd-Co3O4 on the electrocatalytic activity of gold nanodendrites (AuNDs) electrodeposited on a glassy carbon electrode (GCE) for ethanol oxidation was studied. The results showed that the Nd-Co3O4/AuNDs/GCE presents higher active surface area and current density (about 2 times) for the ethanol oxidation compared with the AuNDs/GCE. Cyclic voltammetry and chrono-potentiometry methods proved that the Nd-Co3O4/AuNDs/GCE is able to increase a long-term stability of electrode in alkaline ethanol fuel cell by providing OHads species at the surface of the catalysts. Consequently, the Nd-Co3O4/AuNDs/GCE, as an anodic electrode, reveals potent catalytic activity for ethanol oxidation in alkaline media. | ||
| کلیدواژه‌ها | ||
| Nd-doped cobalt oxide nanoparticles؛ ethanol oxidation؛ alkaline fuel cells؛ Au nano dendrites | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 277 تعداد دریافت فایل اصل مقاله: 261 |
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