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Y2O3 microprisms with trilobal cross section

机译:具有三叶形横截面的Y2O3微棱镜

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摘要

Yttrium oxide (Y2O3) microprisms with interesting trilobal cross section were synthesized through a large-scale and facile hydrothermal method followed by a subsequent heat treatment. The size of the Y2O3 trilobal prisms could be modulated from micro- to submicroscale with the increase of pH value. The as-formed products via the hydrothermal process, monoclinic yttrium. oxide hydroxide nitrate, Y4O(OH)(9)(NO3), could transform to cubic Y2O3 with the same morphology after annealing at high temperatures. The formation mechanism for the Y4O(OH)(9)(NO3) trilobal prisms has been proposed. Under hydrothermal conditions, the synergistic effect of Y-type aggregates of primary Y4O(OH)(9)(NO3) nanorods and sequent preferential of different crystal planes resulted in the formation of trilobal prisms.
机译:通过大规模,简便的水热法合成了具有有趣的三叶形横截面的氧化钇(Y2O3)微棱镜,随后进行了热处理。随着pH值的增加,Y2O3三叶形棱镜的尺寸可以从微米级调整到亚微米级。通过水热过程形成的产品,单斜晶钇。在高温退火后,硝酸盐氢氧化物硝酸盐Y4O(OH)(9)(NO3)可以转变为立方晶状的Y2O3。提出了Y4O(OH)(9)(NO3)三叶形棱镜的形成机理。在水热条件下,主要Y4O(OH)(9)(NO3)纳米棒的Y型聚集体的协同效应以及随后不同晶面的优先作用导致了三叶棱镜的形成。

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