Synthesis of continuous mesoporous alumina films with large-sized cage-type mesopores by using diblock copolymers

Chemistry, an Asian Journal
Xiangfen JiangYusuke Yamauchi

Abstract

Mesoporous alumina films with large-sized cage-type mesopores were prepared by using commercially available diblock copolymer (PS-b-PEO) and economic inorganic salt (AlCl(3)) as aluminum source. The obtained mesopore sizes drastically expand from 35 nm to 80 nm when the amount of ethanol in the precursor solutions were controlled. More interestingly, under an optimized amount of ethanol as co-solvent, there was no significant change of micelle morphology on the substrate, even though the relative amount of PS-b-PEO to alumina source was dramatically varied. When the amount of alumina precursor was decreased, the pore walls gradually became thinner, thereby improving pore connectivity. The ordered mesoporous alumina films obtained in this study exhibit high thermal stability up to 1000 °C, and their frameworks are successfully crystallized to γ-alumina phase. This technique could also be applicable for creating other metal oxide thin films with large mesopores.

References

Feb 15, 2003·Chemical Communications : Chem Comm·Ayumu FukuokaKazuyuki Kuroda
Aug 9, 2003·Journal of the American Chemical Society·Eduardo L CrepaldiClément Sanchez
Jun 25, 2005·Angewandte Chemie·Monika KuemmelClement Sanchez
Feb 21, 2008·Journal of the American Chemical Society·Quan YuanChun-Hua Yan
Jul 26, 2008·Nature Nanotechnology·Ignacio B MartiniBenjamin J Schwartz
Aug 13, 2010·Journal of the American Chemical Society·Zhangxiong WuDongyuan Zhao
May 24, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiangfen JiangYusuke Yamauchi
Jun 15, 2011·Physical Chemistry Chemical Physics : PCCP·Debraj ChandraTatsuo Kimura

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Citations

Jun 25, 2013·Chemistry : a European Journal·Nagy L ToradYusuke Yamauchi
Jan 3, 2013·Macromolecular Rapid Communications·Tatsuo Kimura
May 1, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Abdelnasser AbidliKhaled Belkacemi
Aug 3, 2019·Chemical Communications : Chem Comm·Tatsuo Kimura, Hirokazu Maruoka
Sep 17, 2014·Nanoscale·Adrian Carretero-GenevrierClement Sanchez
Aug 15, 2013·Chemical Society Reviews·Dong Gu, Ferdi Schüth
Apr 20, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Md Saidul IslamTatsuo Kimura

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