以NaOH和NH3·H2O的混合溶液为沉淀剂,在水热条件下制备了大长径比的γ-AlOOH纳米线;并采用X射线衍射仪和透射电子显微镜对制备的产物进行了表征.结果表明:调节混合沉淀剂中NaOH和NH3·H2O的比例,可得到不同形貌的γ-AlOOH纳米结构;大长径比γ-AlOOH纳米线是由水热反应初期形成的尺寸较大的层状γ-AlOOH通过卷曲而形成的;以体积比1∶1的NaOH和NH3·H2O混合溶液为沉淀剂,在保温时间24 h条件下,制备的γ-AlOOH纳米线形态最好,其直径为10～30 nm,长度为1～2 μm,长径比为60～100,并具有明显的晶面择优取向.
参考文献
| [1] | Zhou J.;Deng SZ.;Chen J.;She JC.;Xu NX. .Synthesis of crystalline alumina nanowires and nanotrees[J].Chemical Physics Letters,2002(5-6):505-508. |
| [2] | C.C.Tang;S.S.Fan;P.Li .In situ catalytic growth of Al_2O_3 and Si nanowires[J].Journal of Crystal Growth,2001(1/2):117-121. |
| [3] | Y.Z.Jin;Y.Q.Zhu;K.Brigatti;H.W.Kroto;D.R.M.Walton .Catalysed growth of novel aluminium oxide nanorods[J].Applied physics, A. Materials science & processing,2003(1):113-115. |
| [4] | Li YDD.;Li XLL.;He RRR.;Zhu J.;Deng ZXX. .Artificial lamellar mesostructures to WS2 nanotubes[J].Journal of the American Chemical Society,2002(7):1411-1416. |
| [5] | Chen XY;Zhang ZH;Li XL;Lee SW .Controlled hydrothermal synthesis of colloidal boehmite (gamma-AlOOH) nanorods and nanoflakes and their conversion into gamma-Al2O3 nanocrystals[J].Solid State Communications,2008(7/8):368-373. |
| [6] | Chang Yi;Ling Zhiyuan;Li Yi;Hu Xing.Hydrothermal synthesis of aluminum oxy-hydroxide nanorod and nanotube arrays[J].Electrochimica Acta,2013:241-247. |
| [7] | Tang, Z.;Liang, J.;Li, X.;Li, J.;Guo, H.;Liu, Y.;Liu, C..Synthesis of flower-like Boehmite (γ-AlOOH) via a one-step ionic liquid-assisted hydrothermal route[J].Journal of Solid State Chemistry,2013:305-314. |
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