采用纳米浸渍法,以有序介孔SiC为模板,铁和钴的硝酸盐为主要填充原料,制备了掺杂磁性氧化物的介孔SiC复合材料.研究了填充量和烧结温度对其介孔结构和磁学性能的影响.结果表明,相对较大的填充量和较高的烧结温度,有助于掺杂氧化物的结晶和复合材料磁学性能的增强.此外,800℃烧结制备的复合材料仍具有较大的比表面积(114m/g).
参考文献
[1] | 张勇,陈之战,施尔畏,严成锋,刘学超.介孔模板限域法制备SiC纳米颗粒[J].无机材料学报,2009(02):285-290. |
[2] | Groza JR .Nanosintering[J].Nanostructured Materials,1999(5/8):987-992. |
[3] | 梁博;黄政仁;江东亮 et al.化学气相沉积法制备SiC纳米粉[J].无机材料学报,1996,11(03):441. |
[4] | Jin G Q;Guo X .Synthesis and characterization of mesoporous silicon carbide[J].Microporous and Mesoporous Materials,2003,60(01):207. |
[5] | Zhuxian Yang;Yongde Xia;Robert Mokaya .High Surface Area Silicon Carbide Whiskers and Nanotubes Nanocast Using Mesoporous Silica[J].Chemistry of Materials,2004(20):3877-3884. |
[6] | Shi YF;Meng Y;Chen DH;Cheng SJ;Chen P;Yang TF;Wan Y;Zhao DY .Highly ordered mesoporous silicon carbide ceramics with large surface areas and high stability[J].Advanced functional materials,2006(4):561-567. |
[7] | Shi YF;Wan Y;Zhai YP;Liu RL;Meng Y;Tu B;Zhao DY .Ordered mesoporous SiOC and SiCN ceramics from atmosphere-assisted in situ transformation[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(7):1761-1771. |
[8] | 朱慎林,赵俊琦,刁香,王玉军.磁性介孔氧化硅材料的制备与应用[J].石油化工,2009(08):811-817. |
[9] | 鲁新环,夏清华.磁性纳米材料在分离及催化中的应用[J].石油化工,2008(12):1225-1235. |
[10] | Yan X B;ChenJ T;Xue Q J et al.Synthesis and magnetic properties of CoFe2O4 nanoparticles confined within mesoporous silica[J].Microporous and Mesoporous Materials,2010,135(1-3):137. |
[11] | Wang X Q;Chen M;Li L et al.Magnetic properties of SBA-15 mesoporous nanocomposites with CoFe2O4 nanoparticles[J].Materials Letters,2010,64(06):708. |
[12] | Kleitz F;Choi S H;Ryoo R.Cubic Ia3d large mesoporous silica:Synthesis and replication to platinum nanowires,carbon nanorods and carbon nanotube[J].Chemical Communications,2003(17):2136. |
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