کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1288139 1498027 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphene nanosheets supported hollow Pt&CoSn(OH)6 nanospheres as a catalyst for methanol electro-oxidation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Graphene nanosheets supported hollow Pt&CoSn(OH)6 nanospheres as a catalyst for methanol electro-oxidation
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 205, 1 May 2012, Pages 239–243
نویسندگان
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