摘要
我们采用聚乙烯吡咯烷酮和六亚甲基四胺辅助的溶剂热方法一步合成四氧化三铁亚微米空心球和介孔纳米颗粒。基于实验结果,提出了气泡软模板法的形成机制。样品展现了室温铁磁性。
Magnetite hollow submicrospheres and mesoporous nanoparticles have been synthesized by a solvothermal approach with assistant of hexamethylenetetramine(HMT) and poly(vinyl pyrrolidone)(PVP). A probable gaseous bubble template mechanism was proposed for the formation of magnetite hollow and mesoporous nanostructures based on experimental observations. Magnetic measurement results revealed that all of the samples were ferromagnetic at room temperature.
引文
[1]Sun S,Murry CB,Weller D,Folks L,Moster A.Science 2000,287:1989.
[2]Lu AH,Salabas EL,Schu¨th F.Angew.Chem.Int.Ed.2007,46:1222.