Ordered three- and five-ply nanocomposites from ABC block terpolymer microphase separation with niobia and aluminosilicate sols.
Ordered three- and five-ply nanocomposites from ABC block terpolymer microphase separation with niobia and aluminosilicate sols.
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DOI：
10.1021/cm902626z
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发表时间：
2009-11-24
影响因子：
8.6
通讯作者：
Wiesner, Ulrich
中科院分区：
文献类型：
--
作者：
Stefik, Morgan;Mahajan, Surbhi;Sai, Hiroaki;Epps, Thomas H., III;Bates, Frank S.;Gruner, Sol M.;DiSalvo, Francis J.;Wiesner, Ulrich
我们报告的第一次使用的非挫折块的合成高度有序的氧化物纳米复合材料包含多个层。15 ISO-氧化物纳米复合材料的形态学行为进行了研究，跨越了大范围的组成沿着使用铝硅酸盐和氧化铌溶胶的Al 2 O3 = Al 2 O3等值线。通过TEM和SAXS测量确定形态。根据O+氧化物体积分数的增加，确定了四种形貌，包括核壳六方、核壳双螺旋、三畴层状和核壳反六方。所有所得的纳米复合材料具有三层或五层形态，其包含在一维、二维或三维中连续的域。只有当O+氧化物结构域是少数时，才发现五层核壳双螺旋相是稳定的。去除聚合物能够简单和直接合成介孔氧化物材料，同时保留有序的网络结构。我们相信，多层纳米复合材料合成的进步将导致包含多层功能材料的先进材料和设备。
We report the first use of a non-frustrated block terpolymer for the synthesis of highly ordered oxide nanocomposites containing multiple plies. The morphological behavior of 15 ISO-oxide nanocomposites was investigated spanning a large range of compositions along the ƒI=ƒS isopleth using aluminosilicate and niobia sols. Morphologies were determined by TEM and SAXS measurements. Four morphologies were identified, including core-shell hexagonal, core-shell double gyroid, three-domain lamellae, and core-shell inverse-hexagonal, in order of increasing O+oxide vol fraction. All of the resulting nanocomposites had three- or five-ply morphologies containing domains that were continuous in one, two, or three dimensions. The five-ply core-shell double gyroid phase was only found to be stable when the O+oxide domain was a minority. Removal of the polymer enabled simple and direct synthesis of mesoporous oxide materials while retaining the ordered network structure. We believe that advances in the synthesis of multi-ply nanocomposites will lead to advanced materials and devices containing multiple plies of functional materials.
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影响因子：
5.5
作者：
Floudas, G;Vazaiou, B;Hadjichristidis, N
通讯作者：
Hadjichristidis, N
影响因子：
5.5
作者：
Jain, A;Wiesner, U
通讯作者：
Wiesner, U
影响因子：
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作者：
Bailey, TS;Hardy, CM;Bates, FS
通讯作者：
Bates, FS
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作者：
Lee, J;Yoon, S;Kim, KB
通讯作者：
Kim, KB
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作者：
Cooke, David M.;Shi, An-Chang
通讯作者：
Shi, An-Chang