Mamoru Senna, Chika Takai, Masayoshi Fuji: Hybridization of solid carbohydrates or hydrocarbon with metal oxides under mechanical stressing toward sustainable materials
YUCOMAT 2021
Herceg Novi, Montenegro, 2021
YUCOMAT 2021
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YUCOMAT 2021
Competition : : Best Poster Presentation
YUCOMAT 2021
Competition : : Best Poster Presentation
YUCOMAT 2021
MRS Serbia
YUCOMAT 2021
Competition : : Best Poster Presentation
YUCOMAT 2021
Yury Gogotsi - Award for a Lasting and Outstanding Contribution to Materials Science and Engineering
YUCOMAT 2021
Herceg Novi, Montenegro, 2021
YUCOMAT 2021
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Herceg Novi, Montenegro, 2021
YUCOMAT 2021
Audience
YUCOMAT 2021
Discussion
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Poster Session
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Discussion
YUCOMAT 2021
Audience - outside
YUCOMAT 2021
MRS Serbia
YUCOMAT 2021
Discussion
YUCOMAT 2021
Herceg Novi, Montenegro
YUCOMAT 2021
In Between
YUCOMAT 2021
MRS Serbia
YUCOMAT 2021
Herceg Novi, Montenegro
YUCOMAT 2021
MRS Serbia
YUCOMAT 2021
Audience
YUCOMAT 2021
Herceg Novi, Montenegro

Mamoru Senna1, Chika Takai2, Masayoshi Fuji3

 

1Faculty of Science and Technology, Keio University, Hiyoshi, Yokohama, 223-8522, Japan
2Faculty of Engineering, Gifu University, Yanagido, Gifu, 501-1193, Japan
3Advanced Ceramics Research Center, Nagoya Institute of Technology, Honmachi, Tajimi, 507-0033, Japan

 

Mechanochemical treatment of solid carbohydrates or hydrocarbon, such as cellulose or paraffin wax with metal oxide nanoparticles brings about numerous functional nanocomposites. They are combined with sustainable materials via affordable chemical processes. Starting from physicochemical basics of mechanochemical reactions at the boundaries between carbohydrates or hydrocarbon and metal oxides, case studies are given on the changes in the microstructural properties of cellulosic compounds (SSC) with TiO2 or its hydrates by milling SSC with aqueous precursors of TiO2 or TiO2 nanoparticles. Discussion will be concentrated on the non-covalent chemical interaction between SSC and TiO2 with and without the aid of surrounding polarized water molecules. Simultaneous micronization of SSC structural units and changes in the properties of composites upon subsequent heating are also discussed, in conjunction with the drying condition of the wet complex mass. Despite its basic science oriented experimental works, the authors also try to discuss some unique photo response of titania in the nanocomposite. When time permits, mechanochemical reduction of a stable oxide, V2O5, with paraffin wax to VO2 is referred. Stabilization of thermodynamically less stable VO2 by oxygen vacancies introduced during co-milling with paraffin wax will also be explained, together with a possibility of applying to latent heat energy storage devices.

Plenary lectures - YUCOMAT 2019

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