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首页> 外文期刊>Materials science & engineering. C, Biomimetic and supramolecular systems >Controlling of the morphology of Co-Ti LDH
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Controlling of the morphology of Co-Ti LDH

机译：Co-Ti LDH形态的控制

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摘要

It is known that Mg-Al layer double hydroxide (Mg-Al LDH) possesses plate-like morphology if carefully crystallized. This work focuses on the preparation of Co-Ti LDH having fibrous morphology or mixture of plate-like and fibrous morphologies. The Co-Ti LDH obtained by precipitation for relatively short aging time showed plate-like morphology. By increasing aging time, the plate-like morphology was transformed into fibrous morphology. The percentage of titanium also played an important role to determine the morphology of Co-Ti LDH. The samples having low percentage of titanium 20% and 17% showed plate-like morphology with a small amount of fibrous morphology if prepared from cobalt nitrate. However, the sample having high percentage of titanium 27% showed a large amount of fibrous morphology with a small amount of plate-like morphology. In the sample having 24% of titanium, SEM images showed needles morphology. Furthermore, in the sample prepared from cobalt chloride with low percentage of titanium 17%, the SEM images show the production of a large amount of fibrous morphology.
机译：众所周知，如果仔细地结晶，则Mg-Al层双氢氧化物（Mg-Al LDH）具有板状形态。这项工作集中于制备具有纤维形态或板状和纤维形态混合的Co-Ti LDH。通过沉淀在相对较短的老化时间内获得的Co-Ti LDH表现出板状形态。通过增加老化时间，板状形态转变为纤维形态。钛的百分比也对确定Co-Ti LDH的形态起着重要作用。如果由硝酸钴制备，则钛含量低的20％和17％的样品显示出板状形态，并具有少量的纤维形态。然而，具有高钛含量27％的样品表现出大量的纤维形态和少量的板状形态。在具有24％钛的样品中，SEM图像显示出针的形态。此外，在由钛含量低至17％的氯化钴制备的样品中，SEM图像显示出大量的纤维形态。

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