کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
185264 459594 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polypyrrole nanowire networks as anodic micro-porous layer for passive direct methanol fuel cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Polypyrrole nanowire networks as anodic micro-porous layer for passive direct methanol fuel cells
چکیده انگلیسی

Polypyrrole nanowire networks (PPNNs), as anodic micro-porous layer (MPL) of passive direct methanol fuel cells (DMFCs), are grown in-situ on the surface of carbon paper through an electrochemical polymerization. Passive DMFC with the novel MPL achieves a 28.3% increment in maximum power density from 33.9 mW cm−2 to 43.5 mW cm−2 compared with the conventional layer with similar PtRu(1:1) loading of 2.0 mg cm−2 and operating with 4 M methanol solution at 25 °C. When the PtRu loading is decreased to 1.0 mg cm−2, the maximum power density of the DMFC still reaches 34.3 mWcm−2, which shows a comparative value with the conventional layer. The enhanced performance should be ascribed to the introduction of PPNNs, significantly improves catalyst utilization and mass transfer of methanol on the anode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 141, 20 September 2014, Pages 1–5
نویسندگان
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