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Cu/Co/Mg/Al四元类水滑石的合成、表征及热稳定性研究(英文) 被引量：3

Synthesis,Characterization and Thermal Property of Cu/Co/Mg/Al Hydrotalcite like Compounds
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摘要 采用共沉淀法合成了具有不同Cu/Co/Mg比例的Cu/Co/Mg/Al四元类水滑石(HTlcs)。对合成样品的结构用XRD,IR,ICP,TG-DTA进行表征分析,并与先期合成的二元类Mg/Al-HTlcs及三元类Co/Mg/Al-HTlcs进行结构差异的比较分析。XRD和IR结果表明,合成的样品均具有完整的水滑石结构且结晶度良好晶像单一,层间距由二元类(Mg/Al-HTlcs)的0.750nm扩大到四元类(Cu/Co/Mg/Al-HTlcs)的0.785nm。TG-DTA分析表明,合成样品的热分解过程均可分为2个阶段,其热分解温度由二元类(Mg/Al-HTlcs为250～390℃)到四元类(Cu/Co/Mg/Al-HTlcs的180～300℃)依次递减。 Cu/Co/Mg/AI hydrotalcite like compounds （HTlcs） with different Cu/Co/Mg molar ratios were synthesized by coprecipitation method. The structures of the hydrotalcite materials were characterized by XRD, IR, ICP and TG-DTA, and the structure differences of the samples had been compared with as synthesized MgAI-HTIcs and CoMgAI-HTIcs. XRD and IR results show that all the materials had good crystallinity and integrated layered structure, the interlayer spacing from 0.750 nm of Mg/AI-HTIcs to 0.778 nm of Cu/Co/Mg/AI-HTIcs. TG-DTA results show that all the samples decomposed in 2 stages and the thermal stability of the hydrotalcites decreased from Mg/AI-HTIcs（250-390℃） to Cu/Co/Mg/Al-HTlcs（180-300 ℃）.
作者 倪哲明 夏盛杰 方彩萍 王力耕 胡军
机构地区 浙江工业大学
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2008年第A02期634-637,共4页 Rare Metal Materials and Engineering
基金 Supported by Science and Technology Department of Zhejiang Province(2003C31023)
关键词 类水滑石 合成 结构分析 hydrotalcite like compounds synthesis structure analysis
分类号 O611.3 [理学—无机化学]
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参考文献12

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共引文献63

同被引文献24

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稀有金属材料与工程
2008年 第A02期

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