کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5361345 1503653 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Au hollow nanospheres on graphene support as catalyst for sodium borohydride electrooxidation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Au hollow nanospheres on graphene support as catalyst for sodium borohydride electrooxidation
چکیده انگلیسی
The Au hollow nanospheres on graphene support (HNAu/G) are prepared by galvanic replacement reaction between sacrificial cobalt nanoparticles and AuCl4− ions. The reaction is conducted at room temperature in aqueous solution. The prepared HNAu/G is used as the anode electrocatalyst for sodium borohydride electrooxidation. The physical and electrochemical properties of as-prepared electrocatalyst are investigated by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), chronoamperometry (CA), and chronopotentiometry (CP). The results show that Au hollow nanospheres on graphene support are coreless with the size of about 18 nm. The Au hollow nanospheres on graphene support exhibit an enhanced electrocatalytic performance for borohydride electrooxidation compared with the solid Au nanoparticles on graphene support (NAu/G).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 311, 30 August 2014, Pages 245-251
نویسندگان
, , ,