膨润土复制聚合物支架制备SBA-15单体材料的力学稳定性研究

IF 3.2 4区材料科学 Q2 CHEMISTRY, APPLIED

Journal of Porous Materials Pub Date : 2025-03-24 DOI:10.1007/s10934-025-01791-0

Ridvan Yildiz, Jérémy Dhainaut, Carmen Ciotonea, Jean-Philippe Dacquin, Sébastien Royer, Christian Courtois, Yannick Lorgouilloux

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引用次数: 0

摘要

利用传统方法制备多孔且机械稳定的厘米级单体材料仍然具有挑战性。本文通过简单的反蛋白石技术制备了基于sba -15的分层多孔整体，具有三个孔隙度（二氧化硅结构的微孔和介孔，以及聚合物珠的复制的大孔）。通过添加膨润土和适当的热处理，可以得到比表面积大于300 m2/g、抗压缩力大于50 N的固体，这与用作多相催化剂载体是一致的。

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Improving mechanical stability of SBA-15 monoliths prepared from polymeric scaffolds replication using bentonite clay

The preparation of porous yet mechanically stable centimetric monoliths remains challenging using traditional methods. Herein, hierarchical SBA-15-based porous monoliths, with three levels of porosity (micro- and mesopores from the pores arrangement of the silica structure, and macropores from the replication of polymer beads), were prepared by simple inverse-opal technique. Though the addition of bentonite and proper thermal treatment, solids with specific surface areas above 300 m²/g and resistance toward compression above 50 N were obtained, which is coherent with a use as heterogeneous catalyst supports.

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来源期刊

Journal of Porous Materials 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.70%

发文量

203

审稿时长

2.6 months

期刊介绍： The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials. Porous materials include microporous materials with 50 nm pores. Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.