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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Mesoporous In2O3 with Regular Morphology by Nanocasting: A Simple Relation between Defined Particle Shape and Growth Mechanism
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Mesoporous In2O3 with Regular Morphology by Nanocasting: A Simple Relation between Defined Particle Shape and Growth Mechanism

机译:纳米浇铸的具有规则形貌的中孔In2O3:确定的颗粒形状与生长机理之间的简单关系

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摘要

In2O3 with ordered, uniform mesoporosity is prepared by nanocasting, using various porous silica phases (KIT-6, SBA-15) as structure matrices. The In2O3 particles exhibit well-defined morphologies (spherical or ellipsoidal, depending on the choice of silica matrix) and quite uniform sizes in the range of a few hundred nanometers. The regular morphology of the In2O3 particles is not associated with the morphological properties of the silica matrices. Instead, it is the result of the growth mechanism of In2O3 inside the silica pores; this mechanism is investigated in some detail. Hence, the nanocasting method offers a versatile and simple way of creating mesoporous In2O3 with regular morphology; this will be beneficial for many applications that require well-defined morphological properties, such as gas sensing or catalysis.
机译:通过使用各种多孔二氧化硅相(KIT-6,SBA-15)作为结构基质,进行纳米浇铸,制备了有序,均匀介孔率的In2O3。 In2O3颗粒表现出明确的形态(球形或椭圆形,具体取决于二氧化硅基质的选择),并且在几百纳米的范围内具有相当均匀的尺寸。 In 2 O 3颗粒的规则形态与二氧化硅基质的形态特性无关。相反,这是二氧化硅孔内In2O3的生长机理的结果。对这种机制进行了详细的研究。因此,纳米浇铸法提供了一种通用且简单的方法来制备具有规则形态的介孔In2O3。这对于需要良好定义形态特性的许多应用(例如气体传感或催化)将是有益的。

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