کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287987 | 1498001 | 2013 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High crystallinity binuclear iron phthalocyanine catalyst with enhanced performance for oxygen reduction reaction High crystallinity binuclear iron phthalocyanine catalyst with enhanced performance for oxygen reduction reaction](/preview/png/1287987.png)
High crystallinity binuclear iron phthalocyanine coated onto multi-walled carbon nanotubes (bi-FePc/MWNT), was synthesized. Transmission electron microscopy (TEM) confirms that the crystalline bi-FePc forms a uniform coating on the carbon nanotubes with a thickness of about 20 nm. The plane of the macrocyle is perpendicular to the surface of the nanotube and the stacking axis of the bi-FePc molecules, which is the direction of high electrical conductivity, is found to be parallel to the substrate. The bi-FePc/MWNT show activity of 1.43 mA cm−2 at 0.66 V versus NHE indicating good activity and the current is stable for 14 h as electrocatalyst in oxygen reduction reactions (ORR) indicating good stability; the oxygen reduction current does not change in the presence of methanol showing the binuclear iron phthalocyanine coated onto multi-walled carbon nanotubes specifically catalyzes oxygen reduction and not methanol oxidation.
► High crystallinity binuclear iron phthalocyanine was synthesized.
► The bi-FePc/MWNT catalyst exhibits a superior electrochemical performance.
► The stacking axis of the bi-FePc molecules is parallel to the substrate.
Journal: Journal of Power Sources - Volume 231, 1 June 2013, Pages 91–96