Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst

Yoshinao Suzuki; George Hasegawa; Kazuyoshi Kanamori; Kazuki Nakanishi

doi:10.1039/D1NJ03307G

Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst†

Yoshinao Suzuki,^a George Hasegawa,

^b Kazuyoshi Kanamori

*^a and Kazuki Nakanishi

*^bc

Author affiliations

* Corresponding authors

^a Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan
E-mail: kanamori@kuchem.kyoto-u.ac.jp

^b Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
E-mail: dknakanishi@imass.nagoya-u.ac.jp

^c Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan

Abstract

Hierarchically porous tin oxide monoliths have been prepared for the first time from a low-cost tin(IV) chloride precursor through an epoxide-mediated sol–gel process in an aprotic solvent N,N-dimethylformamide. Phase separation is induced in the presence of poly(propylene glycol) in the course of polymerization triggered by an acid scavenger, propylene oxide, leading to macroporous tin-based oxyhydroxide monoliths. The resultant macropores are confirmed to be controlled in the size range of 0.9–2.9 μm. Both the post-gelation solvothermal treatment in 2-propanol and calcination in air gave rise to crystallinity and mesoporosity (2.4–103 nm in size with BET surface area up to 261 m² g⁻¹), and hierarchically porous tin oxide monoliths have been obtained for the first time. The monoliths are demonstrated as a catalyst for the esterification of valeric acid and methanol.

Supplementary files

Article information

DOI: https://doi.org/10.1039/D1NJ03307G
Article type: Paper
Submitted: 09 Jul 2021
Accepted: 27 Aug 2021
First published: 30 Aug 2021

Download Citation

New J. Chem., 2021,45, 17558-17565

Permissions

Request permissions

Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst

Y. Suzuki, G. Hasegawa, K. Kanamori and K. Nakanishi, New J. Chem., 2021, 45, 17558 DOI: 10.1039/D1NJ03307G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

New Journal of Chemistry

Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst

Social activity

Search articles by author

Spotlight

Advertisements