title: Controllable pt nanoparticle deposition on carbon nanotubes as an anode catalyst for direct methanol fuel cells.
abstract: We report a novel process to prepare well-dispersed Pt nanoparticles on CNTs. Pt nanoparticles, which were modified by the organic molecule triphenylphosphine, were deposited on multiwalled carbon nanotubes by the organic molecule, which acts as a cross linker. By manipulating the relative ratio of Pt nanoparticles and multiwalled carbon nanotubes in solution, Pt/CNT composites with different Pt content were achieved. The so-prepared Pt/CNT composite materials show higher electrocatalytic activity and better tolerance to poisoning species in methanol oxidation than the commercial E-TEK catalyst, which can be ascribed to the high dispersion of Pt nanoparticles on the multiwalled carbon nanotube surface.
authors.affiliation: Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100080, China.
authors.forename: Yongyan
authors.initials: Y
authors.lastname: Mu
authors.forename: Hanpu
authors.initials: H
authors.lastname: Liang
authors.forename: Jinsong
authors.initials: J
authors.lastname: Hu
authors.forename: Li
authors.initials: L
authors.lastname: Jiang
authors.forename: Lijun
authors.initials: L
authors.lastname: Wan
mesh_terms: D002384:Catalysis; D004566:Electrodes; D000432:Methanol / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D037742:Nanotubes, Carbon; D009943:Organophosphorus Compounds; C061896:triphenylphosphine; D010984:Platinum; D000432:Methanol