中空沸石结构：合成方法概述,Chemistry of Materials

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中空沸石结构：合成方法概述
Chemistry of Materials ( IF 7.2 ) Pub Date : 2016-07-20 00:00:00 , DOI: 10.1021/acs.chemmater.6b02172
Céline Pagis ₁ , Ana Rita Morgado Prates ₁ , David Farrusseng ₁ , Nicolas Bats ₂ , Alain Tuel ₁

Affiliation

尺寸小于1μm的空心胶囊由于其作为催化剂以及可控药物输送的生物医学和药物载体的潜在应用，最近引起了广泛的关注。其中，中空沸石特别令人感兴趣，因为它们具有（i）晶体结构，与无定形二氧化硅类似物相比，极大地改善了其水热和化学稳定性，以及（ii）用作形状选择膜的微孔网络。而且，可以通过改变其组成，特别是框架铝含量来连续地调节其性能。在这篇观点综述中，我们研究了制备空心沸石和分子型结构的合成方法的最新进展，从提供大型多晶胶囊的模板路线到可控的溶出方法，形成纳米级的中空单晶。将说明和讨论这些材料的应用，即它们作为催化纳米反应器的主要潜力，这些材料特别适合于金属纳米颗粒的封装和封闭。还讨论了对未来具有特定性能的材料的批评观点，尤其是那些具有较不常见的沸石结构和/或组成的材料。

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Hollow Zeolite Structures: An Overview of Synthesis Methods

Hollow capsules with dimensions below 1 μm have recently attracted much attention due to their potential applications as catalysts as well as biomedical and pharmaceutical vectors for controlled drug delivery. Among them, hollow zeolites are particularly interesting because they possess (i) a crystalline structure, which greatly improves their hydrothermal and chemical stability as compared to amorphous silica analogs and (ii) a microporous network that acts as a shape-selective membrane. Moreover, their properties can be continuously tuned by changing their composition, in particular the framework aluminum content. In this perspective review, we examine the recent progress in the development of synthetic methods for the preparation of hollow zeolite and zeotype structures, from templating routes providing large polycrystalline capsules to controlled dissolution methods leading to nanometer-sized hollow single crystals. The applications of these materials will be illustrated and discussed, namely their main potential as catalytic nanoreactors, these being materials particularly adapted for the encapsulation and the confinement of metal nanoparticles. Critical perspectives on future materials with specific properties are also addressed, particularly those with less common zeolite structures and/or compositions.

更新日期：2016-07-20

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