Facile method to prepare monodispersed hollow PtAu sphere with TiO 2 colloidal sphere as a template

CORC > 厦门大学 > 化学化工－已发表论文

	Facile method to prepare monodispersed hollow PtAu sphere with TiO 2 colloidal sphere as a template
	Huang, Rong ; Zhu, Aimei ; Gong, Yi ; Zhang, Qiugen ; Liu, Qinglin ; Zhu AM(朱爱梅) ; Zhang QG(张秋根) ; Liu QL(刘庆林)
刊名	http://dx.doi.org/10.1021/ie400573c
	2013-06-05
关键词	Catalysts Citric acid Cyclic voltammetry Methanol Photoelectrons Platinum Scanning electron microscopy Titanium dioxide Transmission electron microscopy X ray diffraction X ray photoelectron spectroscopy
英文摘要	Bimetallic hollow PtAu sphere (H-PtAu) was prepared with TiO2 (titanium glycolate spheres) as a template in the presence of citric acid, and the template was removed during the formation of H-PtAu. The morphology and surface structure of H-PtAu were characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray (EDX), and X-ray photoelectron spectroscopy (XPS). The results show that the structure of hollow sphere is strongly dependent on the concentration of citric acid. The H-PtAu with uniform size is well dispersed; the Pt shell thickness can be controlled by the amount of Pt precursor. Electrocatalytic activities of H-PtAu with different Pt/Au atomic ratios were investigated by cyclic voltammetry (CV) in 0.5 M NaOH + 0.5 M methanol aqueous solution. Results show that H-PtAu catalyst has higher methanol oxidation activity than the commercial Pt/C (JM) catalyst, and the optimal Pt/Au molar ratio is 1.0. ? 2013 American Chemical Society.
语种	英语
出版者	American Chemical Society
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89155]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Huang, Rong,Zhu, Aimei,Gong, Yi,et al. Facile method to prepare monodispersed hollow PtAu sphere with TiO 2 colloidal sphere as a template[J]. http://dx.doi.org/10.1021/ie400573c,2013.
APA	Huang, Rong.,Zhu, Aimei.,Gong, Yi.,Zhang, Qiugen.,Liu, Qinglin.,...&刘庆林.(2013).Facile method to prepare monodispersed hollow PtAu sphere with TiO 2 colloidal sphere as a template.http://dx.doi.org/10.1021/ie400573c.
MLA	Huang, Rong,et al."Facile method to prepare monodispersed hollow PtAu sphere with TiO 2 colloidal sphere as a template".http://dx.doi.org/10.1021/ie400573c (2013).