کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1284130 1497972 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of stabilizers on the synthesis of palladium–nickel nanoparticles supported on carbon for ethanol oxidation in alkaline medium
ترجمه فارسی عنوان
اثر تثبیت کننده ها بر سنتز نانوذرات نیکل پالادیوم بر روی کربن برای اکسیداسیون اتانول در محیط قلیایی
کلمات کلیدی
نانوذرات نیکل پالادیوم، تثبیت کننده های مختلف الکترو کاتالیزور، اکسیداسیون اتانول
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• PdNi/C catalysts were prepared by the different stablizers such as glycine.
• The stablizers influence not only the distribution but also the alloy degree of PdNi/C.
• The catalytic activities of PdNi/C catalysts are related to the lattice contraction.

PdNi/C electrocatalysts for ethanol oxidation in alkaline medium are fabricated using four stabilizers, i.e., glycine (G), ethylene diamine tetraacetic acid (EDTA), sodium citrate (SC), and sodium dodecyl sulfate (SDS) with the same reducing process and reaction parameters. X-ray diffraction characterization shows PdNi nanoparticles for all PdNi/C electrocatalysts possess face-centered cubic structure with different alloying degree. TEM results show that PdNi/C-G and PdNi/C-SC have uniform dispersion with ellipse morphology, while particle agglomeration occurs on PdNi/C-EDTA and PdNi/C-SDS. Electrocatalytic activities of these PdNi/C electrocatalysts for ethanol oxidation are measured by cyclic voltammetry and chronoamperometry techniques. The electrocatalytic activities of PdNi/C change with the different lattice contraction. PdNi/C-SC electrocatalyst exhibits the best activity among the four electrocatalysts, which is ascribed to an appropriate lattice contraction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 260, 15 August 2014, Pages 12–18
نویسندگان
, , , , , ,