期刊
ACS APPLIED MATERIALS & INTERFACES
卷 3, 期 7, 页码 2169-2172出版社
AMER CHEMICAL SOC
DOI: 10.1021/am200273s
关键词
benzylamine; noncovalent; exfoliation; graphite; catalyst; oxidation
资金
- National Science Council, Taipei, Republic of China
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.
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