文献类型：期刊文献

中文题名：超临界CO_2中以PEG20000为模板制备多孔材料Fe_2O_3

英文题名：Preparation of Fe_2O_3 Porous Material with PEG20000 as Template in Supercritical CO_2

作者：焦健侠[1];郭兵[2];韩虹[3];李利民[1];王淑玲[2];许群[2]

第一作者：焦健侠

机构：[1]郑州大学化学系;[2]郑州大学材料工程学院;[3]新乡学院化学与化工学院

第一机构：郑州大学化学系,郑州450052

年份：2009

卷号：31

期号：3

起止页码：406-408

中文期刊名：世界科技研究与发展

外文期刊名：World Sci-Tech R$D

收录：CSTPCD;;CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金(20404012)资助项目;河南省杰出青年基金资助项目(0512001200)

语种：中文

中文关键词：超临界CO2;PEG;模板;Fe2O3;多孔材料

外文关键词：supercritical earbon dioxide ; PEG ; template ; Fe2O3 ; porous material

摘要：在超临界CO_2中以聚合物PEG20000为模板,乙酰丙酮铁为前驱体制备Fe_2O_3多孔材料。研究了压力和温度对插嵌率的影响,井对材料进行了TG、XRD、N_2吸脱附及SEM等表征。X射线衍射结果表明,产物主要由α-Fe_2O_3组成。根据产物的N_2吸附-脱附等温线计算,产物的比表面积可达361.01 m^2/g,平均孔径为8 nm左右。SEM测试结果表明,产物由形状不规则的带有疏松结构的碎片组成。
Fe2O3 porous material was prepared with PEG20000 as template and ferric triacetylacetonate as precursor with the assistance of supercfitical carbon dioxide（ SC-CO2 ）. The effect of experimental pressure on the impregnating ratio was studied and the product was characterized with TG ,XRD ,FT-IR,Nitrogen adsorption-desorption experiment and SEM. The X-ray diffraction result shows that the product crystallized in α-Fe203. The BET surface area calculated from the nitrogen sorption isotherm of the product was up to 361. 01 m^2/g and the average pore diameter was about 8 nm. The SEM photographs illustrate that the product is consisted of irregular fragments with loose structure.