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具有高（热）稳定性的非晶态介孔结构氧化锆。

Amorphous mesostructured zirconia with high (hydro)thermal stability.

作者信息

Lebeau Bénédicte, Naboulsi Issam, Michelin Laure, Marichal Claire, Rigolet Séverinne, Carteret Cédric, Brunet Sylvette, Bonne Magali, Blin Jean-Luc

机构信息

Université de Haute Alsace (UHA), CNRS, IS2M UMR 7361 F-68100 Mulhouse France.

Université de Strasbourg 67000 Strasbourg France.

出版信息

RSC Adv. 2020 Jul 13;10(44):26165-26176. doi: 10.1039/d0ra04824k. eCollection 2020 Jul 9.

DOI:10.1039/d0ra04824k
PMID:35519781
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9055362/
Abstract

Here, combining the evaporation-induced self-assembly (EISA) method and the liquid crystal templating pathway, mesostructured amorphous zirconium oxides have been prepared by a soft templating method without addition of any heteroelement to stabilize the mesopore framework. The recovered materials have been characterized by SAXS measurements, nitrogen adsorption-desorption analysis and X-ray diffraction (XRD). The obtained mesostructured zirconia exhibits a high thermal stability. An XRD study performed as a function of temperature shows that the amorphous ZrO, obtained after removal of the pore templating agent (pluronic P123), begins to crystallize in air from 420 °C. Amorphous mesostructured ZrO also presents a high hydrothermal stability; these materials are not degraded after 72 hours in boiling water.

摘要

在此，通过将蒸发诱导自组装（EISA）方法与液晶模板途径相结合，采用软模板法制备了介孔结构的非晶态氧化锆，且未添加任何杂元素来稳定介孔骨架。回收的材料通过小角X射线散射（SAXS）测量、氮吸附-脱附分析和X射线衍射（XRD）进行了表征。所获得的介孔结构氧化锆表现出高的热稳定性。作为温度函数进行的XRD研究表明，在去除孔模板剂（普朗尼克P123）后获得的非晶态ZrO在空气中从420℃开始结晶。非晶态介孔结构ZrO还具有高的水热稳定性；这些材料在沸水中煮72小时后不会降解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb95/9055362/fc2ea6d0abad/d0ra04824k-f8.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb95/9055362/0a4ae4700ad5/d0ra04824k-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb95/9055362/fc2ea6d0abad/d0ra04824k-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb95/9055362/11d17f7cdb20/d0ra04824k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb95/9055362/cfd50098b187/d0ra04824k-f2.jpg
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