کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1274903 | 1497518 | 2013 | 7 صفحه PDF | دانلود رایگان |
• Sawtooth-shaped Ni and NiCo submicrowires were synthesized under a magnetic field.
• Formation mechanism of sawtooth-shaped submicrowires was discussed.
• Sawtooth-shaped submicrowires exhibited higher electrochemical property.
• NiCo submicrowires showed higher electrocatalytic activity than Ni counterpart.
Sawtooth-shaped nickel and nickel-cobalt submicrowires were fabricated by hydrazine reduction of their salt precursors under magnetic field. The sawtooth-shaped submicrowires exhibited better electrochemical property in electrooxidation of methanol in alkaline media than nickel nanoparticles and smooth submicrowires because the sawtooth-shaped structure benefited more from both geometry of nanowires and nano-size effect. Therefore, the sawtooth-shaped nickel-based submicrowires synthesized in this work have the potential for use as a non-precious electrode catalyst for alkaline fuel cells.
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 27, 10 September 2013, Pages 11863–11869