کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1288139 | 1498027 | 2012 | 5 صفحه PDF | دانلود رایگان |

A kind of graphene nanosheets (GNSs) supported hollow composite of Pt and CoSn(OH)6 electro-catalyst (H-Pt&CoSn(OH)6/GNSs) is prepared using cobalt metal nanoparticles as sacrificial templates. Transmission electron microscope measurements show that GNSs supported H-Pt&CoSn(OH)6 nanospheres are coreless with a uniform particle size of 11 nm. Electrochemical measurements demonstrate that the H-Pt&CoSn(OH)6/GNSs electro-catalyst exhibits enhanced electro-catalytic performance for methanol oxidation compared with solid Pt&CoSn(OH)6/GNSs, and Pt/GNSs catalysts.
► Graphene supported hollow composite of Pt and CoSn(OH)6 are first prepared.
► A hollow structured Pt-based composite nanotube is formed.
► The hollow spherical catalyst shows improved catalytic activity and stability.
Journal: Journal of Power Sources - Volume 205, 1 May 2012, Pages 239–243