کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
218037 463179 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphological impact onto organic fuel oxidation of nanostructured palladium synthesized via carbonyl chemical route
ترجمه فارسی عنوان
تأثیر مورفولوژیکی بر اکسیداسیون سوخت های آلی از پالادیوم نانوساختار سنتز شده از طریق مسیر شیمیایی کربنیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Mass-depending morphology of nanostructured Pd was prepared via carbonyl chemical route.
• The morphological impact of nanostructured Pd on organic fuels oxidation was studied in half-cell.
• Nanowire-like Pd materials showed enhanced catalytic activity with respect to commercial Pd nanoparticles in half-cell.
• The μLFFC with anode coated by nanowire-like Pd catalyst showed improved performance commercial Pd/C anode.

Nanostructured palladium (Pd) supported on carbon (Vulcan XC-72) substrate, prepared via carbonyl chemical route, showed Pd-mass depending morphology, reflected on the surface electrochemistry via cyclic, CO-stripping voltammograms, and performance in direct formic acid and direct methanol micro laminar flow fuel cell arrangement. Comparison was done with commercial Pd/C (30 wt.%, ETEK) catalyst. The formic acid oxidation reaction (FAOR) studied in different acid media (0.1 M HClO4, 0.5 M H2SO4 and 0.5 M H3PO4), indicated an enhanced FAOR activity on nanowire-like as compared to nanoparticles and nanorods as well as the commercial one in each electrolyte. Besides, the nanowire-like Pd/C catalyst also favored methanol (MOR) in 0.1 M KOH. These facts confirm favorable morphological effect of nanowires for organic fuel oxidation in both acid and alkaline media.

Mass-depending morphology of nanostructured Pd, supported on carbon black (Vulcan XC-72), was observed from preparation via carbonyl chemical route. The morphological impact on catalytic activity was investigated in half-cell, toward fuel oxidation (e.g. formic acid, methanol and ethanol). As the nanowire-like Pd/C catalyst showed highest catalytic activity for fuel oxidation in half-cell, it was selected as anode in direct formic acid micro laminar flow fuel cell (DFμLFFC) and direct methanol micro laminar flow fuel cell (DMμLFFC).Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 765, 15 March 2016, Pages 79–86
نویسندگان
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