本文以α-α-Fe
2O
3核,硬脂酸为模板剂,通过异丙醇铝水解,缩聚过程以及模板剂自组装合成了一种新型均一核壳结构氧化铁/氧化铝纳米球,然后通过H
2/N
2还原得到磁性氧化铝球。该纳米球具有均一壳层,厚度为30 nm,比表面积为140 m
2/g,孔容为0.22 cm
3/g,比饱和磁化强度为50.2 emu/g。
Well-structured nanospheres with a magnetic core/alumina shell (MFeCA) structure were obtained by self-assembly of stearic acid/alumina species complex in 1-propanol system. The thickness of alumina uniform shell is around 30 nm. The surface area, pore volume and average pore size of the sample are 140 m
2/g, 0.22 cm
3/g and 5.2 nm, respectively. The saturation magnetization values of the sample are as high as 50.2 emu/g.
α-氧化铁,溶胶–凝胶法,自组装,磁性氧化铝纳米球, α-Fe2O3 Sol-Gel Method Self-Assembly Magnetic Nanospheres磁性纳米氧化铝球的合成及性能研究
样品晶相分析在荷兰帕纳科(Panalytical)公司X’Pert Pro MPD型X射线衍射仪上进行。材料的比表面积、孔容和孔径分析在定量分析(Micromeritics) ASAP 2010型吸附仪上进行。材料的形貌分析在日本日立公司S-4800型冷场发射扫描电子显微镜上进行。材料的TEM分析在日本电子JEM-2100UHR型透射电镜上进行。磁性分析在美国Lakeshore7407仪器上进行。
刘澄虎,刘晓月,庞茂森,冯志浩,苗长青,付庆涛. 磁性纳米氧化铝球的合成及性能研究Preparation and Character Investigation of Magnetic Alumina Nanospheres[J]. 化学工程与技术, 2019, 09(03): 153-159. https://doi.org/10.12677/HJCET.2019.93022
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