Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/84848
DC FieldValueLanguage
dc.creatorHan-Wei Changen_US
dc.creatorYu-Chen Tsaen_US
dc.creatorChung-Wei Chengen_US
dc.creatorCen-Ying Linen_US
dc.creatorPing-Han Wuen_US
dc.date2013-04zh_TW
dc.date.accessioned2014-11-25T03:01:58Z-
dc.date.available2014-11-25T03:01:58Z-
dc.identifier.urihttp://hdl.handle.net/11455/84848-
dc.description.abstractA simple and rapid approach for the deposition of platinum (Pt) nanoparticles onto surface of graphenein aqueous solution without reducing agents by femtosecond laser pulses is demonstrated. The formationof graphene-supported Pt in aqueous solution is confirmed by a variety of means such as ultravioletevisible absorption spectroscopy, transmission electron microscopy, X-ray diffraction, and X-rayphotoelectron spectroscopy. Graphene oxide and PtCl6 2 are simultaneously reduced and Pt nanoparticlescan be deposited on the surface of graphene. The presence of Pt on graphene is further confirmed bycyclic voltammetry. The value of electrochemically active surface area of the prepared graphenesupportedPt (58.9 m2 g 1) is higher than most previously reported preparation methods forgraphene-supported Pt. For the electrochemical oxidation of methanol, the prepared graphenesupportedPt exhibits a mass activity of 295 mA mg 1 at 0.669 V, which was higher than commercialPt catalyst and graphene-supported Pt prepared by electrochemical method.en_US
dc.format.medium期刊論文zh_TW
dc.language.isoen_USzh_TW
dc.relationJournal of Power Sources, Volume239, Page(s) 164-168.en_US
dc.subjectFuel cellen_US
dc.subjectFemtosecond laseren_US
dc.subjectGrapheneen_US
dc.subjectPlatinum nanoparticlesen_US
dc.titlePreparation of graphene-supported platinum nanoparticles in aqueous solutionby femtosecond laser pulses for methanol oxidationen_US
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