Polyurea-supported metal nanocatalysts: Synthesis, characterization and application in selective hydrogenation of o-chloronitrobenzene

doi:10.1016/j.jcis.2014.03.015

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	Polyurea-supported metal nanocatalysts: Synthesis, characterization and application in selective hydrogenation of o-chloronitrobenzene
	Hao, Leiduan; Zhao, Yanfei; Yu, Bo; Zhang, Hongye; Xu, Huanjun; Xu, Jilei; Liu, Zhimin
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2014-06-15
卷号	424 页码:44-48
关键词	Polyurea Pt Nanocatalyst Selective Hydrogenation O-chloronitrobenzene O-chloroaniline
ISSN号	0021-9797
DOI	10.1016/j.jcis.2014.03.015
英文摘要	Polyurea (PU) spheres with size of 2-10 mu m were derived through the polymerization of CO2 with 1,4-butanediamine, and characterized by FTIR spectroscopy, scanning electron microscopy and TG analysis. It was demonstrated that the PU spheres displayed flower-like morphology with the betel thickness around 30 nm, and they had high thermal stability. The resultant PU spheres were used to immobilize metal particles, and a series of PU-supported metal nanocatalysts including Pt/PU, Au/PU, Pd/PU were prepared via just mixing the metal precursors with the PU spheres in water, followed by the reduction of metal ions by NaBH4. Transmission electron microscopy examination indicated that the metal nano-particles were distributed uniformly on the surface of the PU spheres with mean particle size less than 3.0 nm, and the Pt particles existed mainly in the form of metallic state as confirmed by the X-ray photoelectron spectroscopy analysis. The performance of the Pt/PU catalyst was tested in the catalytic hydrogenation of o-chloronitrobenzene, and a high selectivity of 99.5% toward o-chloroaniline at complete conversion of o-chloronitrobenzene was obtained at room temperature. (C) 2014 Elsevier Inc. All rights reserved.
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000335939400007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51385]
专题	中国科学院化学研究所
通讯作者	Liu, Zhimin
作者单位	Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Hao, Leiduan,Zhao, Yanfei,Yu, Bo,et al. Polyurea-supported metal nanocatalysts: Synthesis, characterization and application in selective hydrogenation of o-chloronitrobenzene[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2014,424:44-48.
APA	Hao, Leiduan.,Zhao, Yanfei.,Yu, Bo.,Zhang, Hongye.,Xu, Huanjun.,...&Liu, Zhimin.(2014).Polyurea-supported metal nanocatalysts: Synthesis, characterization and application in selective hydrogenation of o-chloronitrobenzene.JOURNAL OF COLLOID AND INTERFACE SCIENCE,424,44-48.
MLA	Hao, Leiduan,et al."Polyurea-supported metal nanocatalysts: Synthesis, characterization and application in selective hydrogenation of o-chloronitrobenzene".JOURNAL OF COLLOID AND INTERFACE SCIENCE 424(2014):44-48.