Covalently functionalized carbon nanotube supported Pd nanoparticles for catalytic reduction of 4-nitrophenol

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	Covalently functionalized carbon nanotube supported Pd nanoparticles for catalytic reduction of 4-nitrophenol
	X. M. Gu; W. Qi; X. Z. Xu; Z. H. Sun; L. Y. Zhang; W. Liu; X. L. Pan; D. S. Su
	2014
发表期刊	Nanoscale
ISSN	2040-3364
卷号	6 期号:12 页码:6609-6616
摘要	Carbon nanotubes (CNTs) were covalently functionalized via 1,3-dipolar cycloaddition reaction under microwave conditions. The functionalized CNTs were characterized by thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), N-2 adsorption isotherms and Raman spectroscopy. The surface concentration of phenolic hydroxyl groups on the surface of CNTs was adjusted by varying the reaction temperature. In addition, we prepared Pd nanoparticle/CNT (Pd NP/CNT) nanocomposites through strong electrostatic adsorption and hydrogen reduction. The results indicated that the functional groups could not only improve the dispersion of CNTs in water, but also enhance the interaction between Pd precursors and CNTs, thus preventing small Pd NPs (average diameter of 1.5 nm) from agglomerating. Furthermore, the Pd NP/CNT-220 nanocomposites showed high catalytic activity for the reduction of 4-nitrophenol. The turnover frequency (TOF) of this catalyst was up to 18 min(-1), which was attributed to the small size and uniform distribution of Pd NPs on the surface of CNTs.
部门归属	[gu, xianmo ; xu, xianzhu] harbin inst technol, state key lab urban water resource & environm, harbin 150090, peoples r china. [gu, xianmo ; qi, wei ; sun, zhenhua ; zhang, liyun ; liu, wei ; pan, xiaoli ; su, dangsheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; xu, xz (reprint author), harbin inst technol, state key lab urban water resource & environm, harbin 150090, peoples r china. ; xuxianzhu@hit.edu.cn ; zhsun@imr.ac.cn ; dssu@imr.ac.cn
关键词	Palladium Nanoparticles Oxidative Dehydrogenation Recyclable Catalyst Raman-spectroscopy Nitrogen Facile Electrocatalysts Nanostructures Microspheres Route
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72848
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. M. Gu,W. Qi,X. Z. Xu,et al. Covalently functionalized carbon nanotube supported Pd nanoparticles for catalytic reduction of 4-nitrophenol[J]. Nanoscale,2014,6(12):6609-6616.
APA	X. M. Gu.,W. Qi.,X. Z. Xu.,Z. H. Sun.,L. Y. Zhang.,...&D. S. Su.(2014).Covalently functionalized carbon nanotube supported Pd nanoparticles for catalytic reduction of 4-nitrophenol.Nanoscale,6(12),6609-6616.
MLA	X. M. Gu,et al."Covalently functionalized carbon nanotube supported Pd nanoparticles for catalytic reduction of 4-nitrophenol".Nanoscale 6.12(2014):6609-6616.