کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5435662 1509355 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bacterial cellulose derived iron and phosphorus co-doped carbon nanofibers as an efficient oxygen reduction reaction electrocatalysts
ترجمه فارسی عنوان
نانوکامپوزیت کربن آهن و فسفر با همکاری سلولز باکتریایی به عنوان یک الکتروکاردیوگرام واکنش اکسیژن کارآمد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی


- A Fe-P/CNFs electrocatalyst had been successfully synthesized.
- Fe-P/CNFs possessed a 3D porous network structure and large surface area.
- Fe-P/CNFs for ORR exhibited good electrocatalytic activity.
- Fe-P/CNFs were considered as a potential candidate for replacing Pt-based catalysts.

Heteroatom-doped carbon materials as efficient electrocatalysts for oxygen reduction reaction have been attracted a lot of research interest. For its low cost, high selectivity and excellent stability, heteroatoms-doped carbon materials have been considered as the candidate for replacing Pt-based catalysts. We had designed an iron and phosphorus co-doped carbon nanofibers (Fe-P/CNFs) derived from bacterial cellulose for oxygen reduction reaction, which not only showed a three-dimensional (3D) porous network structure, but also possessed large surface area. The unique 3D porous network could accelerate oxygen diffusion and electron transfer, and meanwhile enlarge specific surface area. Accordingly, the obtained material had more active sites for electrocatalysis. More importantly, the unusual synergistic effects between the doped Fe and P atoms could efficiently improve the electrocatalytic performance of oxygen reduction reaction. As expected, the Fe-P/CNFs showed a high ORR electrocatalytic activity with a more positive onset potential of 1.01 V, similar with 1.03 V at 20 wt% Pt/C, and a good long-term stability (94% retention of current density after chronoamperometry 20,000s).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 223, January 2017, Pages 137-144
نویسندگان
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