标题:Synthesis and thermal properties of ZnAl layered double hydroxide by urea hydrolysis
作者:Liu, Jianqiang; Song, Jianye; Xiao, Hongdi; Zhang, Liangji; Qin, Yaowei; Liu, Dehe; Hou, Wanguo; Du, Na
作者机构:[Liu, Jianqiang; Song, Jianye; Xiao, Hongdi; Zhang, Liangji; Qin, Yaowei; Liu, Dehe] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China.; [Hou, 更多
通讯作者:Liu, J
通讯作者地址:[Liu, JQ]Shandong Univ, Sch Phys, Jinan 250100, Peoples R China.
来源:POWDER TECHNOLOGY
出版年:2014
卷:253
页码:41-45
DOI:10.1016/j.powtec.2013.11.007
关键词:Layered double hydroxide; Urea hydrolysis; Mechanism; Thermal properties
摘要:The synthetic zinc aluminum layered double hydroxide (LDH) with Zn/Al molar ratios of 0.25-8 was synthesized by the urea method. The structure, composition and morphological properties were investigated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM). Pure layered double hydroxide phase was obtained when the Zn/Al ratios are 0.5, 1 and 2. The lower (0.25 and 0.33) and higher (3, 4, 6 and 8) initial Zn/Al molar ratios resulted in the formation of ZnAl-CO3-LDH with AlOOH and Zn-4(CO3)(OH)(6)center dot nH(2)O, respectively. The thermal properties of these LDHs were studied by the thermogravimetric and differential thermal analysis (TG-DTA). The XRD patterns of the calcined products at 900 degrees C showed that the LDHs prepared at different Zn/Al molar ratios can be used as good precursors for preparing mixed oxide or spinel. (C) 2013 Elsevier B.V. All rights reserved.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:30
Scopus被引频次:36
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888404900&doi=10.1016%2fj.powtec.2013.11.007&partnerID=40&md5=733430f0b338bfbfec0acdf1e5ffa12f
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