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Article

Drastic Microwave Heating of Percolated Pt Metal Nanoparticles Supported on Al2O3 Substrate

Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, E4-3, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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Processes 2020, 8(1), 72; https://doi.org/10.3390/pr8010072
Received: 13 December 2019 / Revised: 1 January 2020 / Accepted: 3 January 2020 / Published: 5 January 2020
(This article belongs to the Special Issue Microwave Heating and Chemistry )
Microwave (MW) heating of supported metal nanoparticles (NPs) presents attractive effects on catalysis such as the rapid heating processes and the enhancement of the reaction rate. Improving the heating property of the NPs, which act as the catalytic active sites, the MW effects will become more significant. Here we show a systematic study about the supported Pt NPs structure to improve the MW heating property. We found that the drastic heating was induced by a percolated Pt NPs structure, where the conduction electrons move around in the two-dimensional network. On the other hand, no heating was observed in an isolated Pt NPs system with the confined electrons. We conclude that the percolation of the Pt NPs giving the network structure is one of the important key factors for the efficient MW heating. The optimized Pt NPs catalyst leads to the dramatic MW effects on catalytic reactions. View Full-Text
Keywords: microwave heating; supported catalyst system; metal nanoparticles; percolated structure; conductive network microwave heating; supported catalyst system; metal nanoparticles; percolated structure; conductive network
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MDPI and ACS Style

Ano, T.; Maitani, M.M.; Sato, Y.; Tsubaki, S.; Wada, Y. Drastic Microwave Heating of Percolated Pt Metal Nanoparticles Supported on Al2O3 Substrate. Processes 2020, 8, 72. https://doi.org/10.3390/pr8010072

AMA Style

Ano T, Maitani MM, Sato Y, Tsubaki S, Wada Y. Drastic Microwave Heating of Percolated Pt Metal Nanoparticles Supported on Al2O3 Substrate. Processes. 2020; 8(1):72. https://doi.org/10.3390/pr8010072

Chicago/Turabian Style

Ano, Taishi, Masato M. Maitani, Yuka Sato, Shuntaro Tsubaki, and Yuji Wada. 2020. "Drastic Microwave Heating of Percolated Pt Metal Nanoparticles Supported on Al2O3 Substrate" Processes 8, no. 1: 72. https://doi.org/10.3390/pr8010072

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