Elect rochemical Synthesis and Electrochem ical Char acteristic of Graphene-Supported P t Nanoparticles for Methano l Oxidati on

Direct methanol fuel cells (DMFCs) are considered o ne of the most promising power so urces for applications i n electric ve hicles and electronic portable devices, due to their high p ower density, relativel y quick startup, rapid response to varying loading, and low operating temperature. The n ew form of carbon, whi ch they call graphene, h as very intri guing physi cal properties that suggest it could have a wi de variety of applications. Graph ene has received significant attention in recen t years due to their u nique electronic, physic al, mechanical, thermal and chemical properti es, such as high surface area, excelle nt conductivity, ease of functionali zation and p otentially lo w manufact uring cost since their dis covery in ۲۰۰۴. So, graphene -supp orted Pt nan oparticles with ۱۰ wt. % metal loa ding are prepared by s odium boro hydride redu ction method and the electrochem ical chara cteristic of Pt /graphene is studi ed carefully and compa red with commercial Pt/C (E-TEK) under methanol oxidation[۱-۴].

کلیدواژه ها:

elect rochemical e xfoliation ، graphene ، platinum nanop articles ، methanol oxid ation ،