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Inorganics 2016, 4(1), 6; doi:10.3390/inorganics4010006

A Reliable Method for the Preparation of Multiporous Alumina Monoliths by Ice-Templating

1
Laboratoire de Synthèse et Fonctionnalisation des Céramiques, UMR3080, CNRS/Saint-Gobain, 550 Avenue Alphonse Jauffret, F-84306 Cavaillon Cedex, France
2
Present address: Institut de Recherches sur la Catalyse et l’Environnement de Lyon – IRCELYON, UMR5256 CNRS-Université Claude Bernard Lyon 1, 2 Avenue Albert Einstein, F-69626 Villeurbanne Cedex, France
3
Present address: Saint-Gobain Lumilog, F-06220 Vallauris, France
*
Author to whom correspondence should be addressed.
Academic Editors: Samuel Bernard, André Ayral and Philippe Miele
Received: 15 January 2016 / Revised: 24 February 2016 / Accepted: 1 March 2016 / Published: 11 March 2016
(This article belongs to the Special Issue Mesoporous Materials)
View Full-Text   |   Download PDF [6844 KB, uploaded 11 March 2016]   |  

Abstract

Alumina supports presenting a bimodal porosity are generally advantageous for the conversion of bulky molecules such as found in biomass, refining, and petrochemistry. However, shaping of such materials, while controlling pores size and orientation, proves to be hard. This problem can be tackled by using a simple method involving sol-gel chemistry, surfactant self-assembly, and ice-templating. Herein, a systematic study of the formulation and process parameters’ influence on the final material properties is presented. This protocol results in the repeatable preparation of centimeter-sized alumina monoliths presenting a uni-directional macroporosity and structured mesopores. These monoliths should be of particular interest in high flow rate catalytic applications. View Full-Text
Keywords: porous materials; alumina; ice templating; ordered mesoporous alumina porous materials; alumina; ice templating; ordered mesoporous alumina
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Dhainaut, J.; Deville, S.; Amirouche, I.; Klotz, M. A Reliable Method for the Preparation of Multiporous Alumina Monoliths by Ice-Templating. Inorganics 2016, 4, 6.

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