title: Benzylamine-assisted noncovalent exfoliation of graphite-protecting Pt nanoparticles applied as catalyst for methanol oxidation.
abstract: A novel method has been developed to physically exfoliate graphite and uniformly disperse Pt nanoparticles on graphite nanoplates without damaging the graphene structures. A stable aqueous suspension of graphite nanoplates was achieved by benzylamine-assisted noncovalent fuctionalization to graphite and characterized by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. A uniform dispersion of Pt nanoparticles was then prepared on the graphite nanoplates, where the benzylamine acts as a stabilizer. These Pt loaded graphite nanoplates were then prepared as an electrode, which significantly increased catalytic activity toward the methanol oxidation reaction, resulting in a 60% increment in mass activity compared to that of E-TEK.
authors.affiliation: Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China.
authors.forename: Chun-Han
authors.initials: CH
authors.lastname: Hsu
authors.forename: Hsin-Yi
authors.initials: HY
authors.lastname: Liao
authors.forename: Yi-Fang
authors.initials: YF
authors.lastname: Wu
authors.forename: Ping-Lin
authors.initials: PL
authors.lastname: Kuo