A fast route to obtain modified tin oxide aerogels using hydroxostannate precursors†,Materials Chemistry Frontiers

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A fast route to obtain modified tin oxide aerogels using hydroxostannate precursors†
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2018-01-29 00:00:00 , DOI: 10.1039/c7qm00395a
Max Gregor Beier _{1,

2,

3,

4} , Christoph Ziegler _{1,

2,

3,

4} , Karl Wegner _{3,

4,

5} , Albrecht Benad _{1,

2,

3,

4} , Frank Simon _{4,

6,

7} , Stefan Kaskel _{3,

4,

5} , Alexander Eychmüller _{1,

2,

3,

4}

Affiliation

Nanostructured tin oxide materials with a high specific surface area and porosity are promising for applications such as electrocatalysis, lithium ion batteries or sensors. Here, we present a facile strategy for the synthesis of tin oxide aerogels using inexpensive hexahydroxostannate as a tin precursor. This easy and scalable method yields tin oxide aerogels with a high specific surface area and a wide pore size distribution. The method can be modified by adding hexahydroxoantimonate to obtain antimony-doped tin oxide aerogels that exhibit electrical conductivity after annealing. Cogelation with other preformed nanoparticles (e.g. Au, Pt) leads to mixed gels. Both modifications do not have a large impact on the porous properties of the obtained aerogels. Tin oxide materials prepared via this route can be tailored to a specific application by versatile modification possibilities.

中文翻译：

使用异羟锡酸酯前体获得改性氧化锡气凝胶的快速途径†

具有高比表面积和孔隙率的纳米结构的氧化锡材料有望用于电催化，锂离子电池或传感器等应用。在这里，我们提出了一种使用廉价的六氢氧杂锡酸盐作为锡前体合成氧化锡气凝胶的简便策略。这种简单且可扩展的方法可生产出具有高比表面积和宽孔径分布的氧化锡气凝胶。该方法可以通过添加六氢氧锑酸进行修改，以获得掺杂锑的氧化锡气凝胶，该气凝胶在退火后具有导电性。与其他预先形成的纳米颗粒（例如Au，Pt）的凝胶化会导致混合凝胶。两种修饰对获得的气凝胶的多孔性没有很大的影响。通过以下方法制备的氧化锡材料通过多种修改可能性，可以针对特定应用量身定制该路线。

更新日期：2018-01-29

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