矿产保护与利用Issue(1)：51-55,5.DOI:10.13779/j.cnki.issn1001-0076.2016.01.009
两种方法制备的纳米水滑石晶体结构与热稳定性的比较研究
Comparative Study on Structure and Thermal Stability of Nano-Hydrotalcites Synthesized by Two Methods
摘要
Abstract
Nano-hydrotalcites were synthesized by the coprecipitation and mechanochemistry/in-situ crystallization method,respectively.The differences in morphology, crystal structure and ther-mal stability were analyzed using X-ray diffraction ( XRD) , field emission scanning electron mi-croscope (FE-SEM), thermogravimetry-differential scanning calorimetry (TG-DSC), and in-frared spectroscopy ( IR) .The results showed that, compared with nano-hydrotalcites synthesized by the coprecipitation,the nano-hydrotalcites synthesized by the mechanochemistry/in-situ crys-tallization were more well crystallized, and had more uniform size distribution,which with regular hexagon layer shape and particle size of 40 nm.Moreover, due to the smaller aera of endothermic peak,weight loss, and mass loss rate of endothermic peaks in TG-DSC curves, nano-hydrotal-cites synthesized by mechanochemistry/in -situ crystallization had better thermal stability than those synthesized by coprecipitation.关键词
共沉淀/机械力化学/原位结晶/纳米水滑石/晶体结构/热稳定性Key words
coprecipitation/mechanochemistry/in-situ crystallization/nano-hydrotalcite/crys-tal structure/thermal stability分类
矿业与冶金引用本文复制引用
谭琦,刘新海,刘玉林,赵毅,李一波..两种方法制备的纳米水滑石晶体结构与热稳定性的比较研究[J].矿产保护与利用,2016,(1):51-55,5.基金项目
国家自然科学基金（51404219）；中国地质调查局地质调查项目 （）
