High performance N-Doped Porous Graphene for the Oxygen Reduction Reaction
محل انتشار: چهارمین کنفرانس هیدروژن و پیل سوختی
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 712
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شناسه ملی سند علمی:
H2FC04_045
تاریخ نمایه سازی: 13 شهریور 1396
چکیده مقاله:
In this work, Nitrogen-doped porous graphene was synthesized using ammonium acetate as a precursor and pyrolysis technique. The physico-chemical properties of the prepared sample determined using Field Emission Scanning Electron Microscopy (SEM), and X–ray photoelectron spectroscopy (XPS). The prepared samples were further applied for oxygen reduction reaction (ORR) in alkaline solusion and its electrochemical performance was investigated and compared with porous carbon and Pt 20 wt%. The results revealed that effect of introducing the nitrogen to graphene structure leads to improvement in catalytic activity, enhanced catalytic current as well as more positive potential. Furthermore, N-doped graphene prepared using ammonium acetate exhibited excellent methanol tolerance and long-term stability.
کلیدواژه ها:
نویسندگان
s.sadegh hassani
Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran,Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
l samiee
Energy Technology Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
s tasharrofi
energy technology research division research institute of petroleum industry RIPI tehran ,iran
e ghasemi
Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran