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	1. Highly Effective La Modified Ni Catalysts Derived from NiAl-LDHs for Anthraquinone Hydrogenation
	GUAN Chaoyang,HONG Runrun,ZHANG Na,FENG Junting,YIN Min,LI Dianqing
	Chemistry 27 April 2016
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	Abstract:A series of Ni/Al2O3 catalysts were prepared using NiAl-CO3-layered double hydroxides (NiAl-LDHs) with different Ni/Al molar ratio (2:1~4:1) as precursors and studied in the hydrogenation of anthraquinone. The catalytic results show that Ni/Al2O3-2:1 catalyst exhibits highest hydrogenation activity due to the highest surface area. Moreover, different amount of lanthanum modified Ni/Al2O3-2:1 catalysts show higher hydrogenation activity. When the La loading reaches 2 %, the hydrogenation activity increases by 20.7 % and shows preferable selectivity compared with Ni/Al2O3-2:1 catalyst. Superior hydrogenation activity can be ascribed to the smaller Ni particle size and higher Ni dispersion. Preferable selectivity can be ascribed to the electronic effect of lanthanum, resulting in electron-rich Ni and weakening the adsorption of anthraquinone hydrogenation products. In addition, a new type of pores is generated during the calcination process, which is advantageous for the generated anthraquinone molecules to spread out to prevent overhydrogenation.
	TO cite this article:GUAN Chaoyang,HONG Runrun,ZHANG Na, et al. Highly Effective La Modified Ni Catalysts Derived from NiAl-LDHs for Anthraquinone Hydrogenation[OL].[27 April 2016] http://en.paper.edu.cn/en_releasepaper/content/4685749


	2. Study on Preparation and Formation Mechanisms of Al2O3 Nanoparticles by Reverse Microemulsion
	Yin Liangguo,Huang Kelong,Liu Suqin,Li Chaojian
	Chemistry 02 November 2006
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Al2O3 nanoparticle have been prepared by polyethylene glycol octylphenyl ether(Triton X-100)/n-butyl alcohol/cyclohexane/water W/O reverse microemulsion. The result of thermal analysis of the precursor products showed the proper calcination temperature was 1150 ℃. Structures and morphologies of Al2O3 nanoparticles were characterized by X-ray powder diffraction(XRD)、Transmission electron microscope(TEM) and US-VIS spectra. The influences of molar ratio of water to surfactant (ωo), calcination temperature and other key factors on the morphologies and the sizes of the Al2O3 nanoparticles were studied. The results show that we have successfully solve the agglomeration of nanoparticles. The formation mechanisms of Al2O3 nanoparticles in the reverse microemulsion were also discussed.
	TO cite this article:Yin Liangguo,Huang Kelong,Liu Suqin, et al. Study on Preparation and Formation Mechanisms of Al2O3 Nanoparticles by Reverse Microemulsion[OL].[ 2 November 2006] http://en.paper.edu.cn/en_releasepaper/content/9214

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