Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts

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	Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts
	W. Qi; W. Liu; S. Y. Liu; B. S. Zhang; X. M. Gu; X. L. Guo; D. S. Su
	2014
发表期刊	Chemcatchem
ISSN	1867-3880
卷号	6 期号:9 页码:2613-2620
摘要	A prototype supported solid-acid catalyst composed of a heteropoly acid (HPA) and nitrogen-functionalized carbon nanotubes (NCNT) has been developed. The chemical structure and acid strength of the HPA/NCNT hybrid have been characterized thoroughly by IR spectroscopy, X-ray photoelectron spectroscopy, TEM, and titration measurements. NCNT supports provide the HPA with an ideal hydrophobic environment, which could prevent the deactivation of the acid sites effectively in aqueous media. HPA/NCNT hybrid catalysts tend to adsorb and enrich hydrophobic substrates (ester) and release the product with high polarity (ethanol) in the aqueous phase, and this synergistic effect facilitates the catalytic process and enhances the activity of HPAs for ester hydrolysis reactions. The HPA and NCNT combine through electrostatic interactions, which ensures the relatively high stability and easy regeneration of the HPA/NCNT hybrid catalysts. The present approach provides a promising and universal strategy for the construction of hybrid catalysts based on HPA and nanocarbon with unique acidic or redox properties.
部门归属	[qi, wei ; liu, wei ; liu, songyun ; zhang, bingsen ; gu, xianmo ; guo, xiaoling ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; su, ds (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; dssu@imr.ac.cn
关键词	Electrostatic Interactions Heterogeneous Catalysis Nanotubes Supported Catalysts Supramolecular Chemistry Mustard Hd Analogs Carbon Nanotubes Selective Oxidation Highly Efficient Water-tolerant Base Catalysts Keggin-type X-ray Transesterification Desulfurization
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语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73355
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Qi,W. Liu,S. Y. Liu,et al. Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts[J]. Chemcatchem,2014,6(9):2613-2620.
APA	W. Qi.,W. Liu.,S. Y. Liu.,B. S. Zhang.,X. M. Gu.,...&D. S. Su.(2014).Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts.Chemcatchem,6(9),2613-2620.
MLA	W. Qi,et al."Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts".Chemcatchem 6.9(2014):2613-2620.