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材料工程  2013 

“珠串”堆叠超结构的介孔铁酸锌的制备与表征

DOI: 10.3969/j.issn.1001-4381.2013.10.004, PP. 24-28

Keywords: 铁酸锌,介孔,共沉淀,珠串超结构

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Abstract:

以硫酸亚铁和硝酸锌为铁源和锌源,十二烷基硫酸钠为颗粒尺寸控制剂,草酸钠为沉淀剂,通过草酸盐的热分解制备了介孔铁酸锌。利用X射线粉末衍射、热分析、红外光谱、场发射扫描电镜和氮气吸附-脱附等手段对不同表面活性剂加入量制备的样品的晶相组成和表面结构进行了表征,结果显示,Fe2+和十二烷基硫酸钠的摩尔比为101,煅烧温度为500℃时制备的铁酸锌有较大的表面积(82.0m2·g-1),BJH平均孔径为12.5nm,孔体积为0.257cm3·g-1,得到的介孔铁酸锌具有由尺寸均一的纳米粒子规则排列而形成的"珠串"堆叠超结构。

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