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Basicities and transesterification activities of Zn-Al hydrotalcites-derived solid bases
Liu, Qianhe1,2; Wang, Bingchun1; Wang, Congxin1; Tian, Zhijian1,3; Qu, Wei1; Ma, Huaijun1; Xu, Renshun1
刊名GREEN CHEMISTRY
2014
DOI10.1039/c3gc42648c
16期:5页:2604-2613
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]LAYERED DOUBLE HYDROXIDES ; BIODIESEL PRODUCTION ; ALDOL CONDENSATION ; CATALYSTS ; ADSORPTION ; OXIDES ; REACTIVITY ; SITES ; DECOMPOSITION ; METHANOL
英文摘要Solid bases were prepared by calcining as-prepared Zn-Al hydrotalcites at different temperatures. The evolutions of their structure and basicity were characterised using X-ray diffraction, thermogravimetric analysis, infrared spectroscopy of CO2 adsorption and temperature programmed desorption of methanol. With an increase in the calcination temperature, the as-prepared Zn-Al hydrotalcites were firstly converted into dehydrated Zn-Al hydrotalcites and next converted into Zn-Al oxides. The basic sites of these solid bases changed from OH groups to Mn+- O2- (M = Zn or Al) pairs and isolated O2- ions. These solid bases were evaluated in transesterification reactions used for biodiesel production. The dehydrated Zn-Al hydrotalcites obtained at 473 K exhibit the highest activity, with a biodiesel yield of approximately 76% at 413 K, 1.7 MPa and 1.0 h(-1). This catalyst exhibits no deactivation after about 150 h. The structure-reactivity relationship of the catalyst is also discussed.
语种英语
WOS记录号WOS:000335005200032
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被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145557
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Liu, Qianhe,Wang, Bingchun,Wang, Congxin,et al. Basicities and transesterification activities of Zn-Al hydrotalcites-derived solid bases[J]. GREEN CHEMISTRY,2014,16(5):2604-2613.
APA Liu, Qianhe.,Wang, Bingchun.,Wang, Congxin.,Tian, Zhijian.,Qu, Wei.,...&Xu, Renshun.(2014).Basicities and transesterification activities of Zn-Al hydrotalcites-derived solid bases.GREEN CHEMISTRY,16(5),2604-2613.
MLA Liu, Qianhe,et al."Basicities and transesterification activities of Zn-Al hydrotalcites-derived solid bases".GREEN CHEMISTRY 16.5(2014):2604-2613.
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