CO 2 to methanol conversion using hydride terminated porous silicon nanoparticles

Porous silicon nanoparticles (Si-NPs) prepared via magnesiothermic reduction were used to convert carbon dioxide (CO ) into methanol. The hydride surface of the silicon nanoparticles acted as a CO reducing reagent without any catalyst at temperatures above 100 °C. The Si nanoparticles were reused up...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017-03, Vol.53 (21), p.3114-3117
Main Authors: Dasog, M, Kraus, S, Sinelnikov, R, Veinot, J G C, Rieger, B
Format: Article
Language:English
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Summary:Porous silicon nanoparticles (Si-NPs) prepared via magnesiothermic reduction were used to convert carbon dioxide (CO ) into methanol. The hydride surface of the silicon nanoparticles acted as a CO reducing reagent without any catalyst at temperatures above 100 °C. The Si nanoparticles were reused up to four times without significant loss in methanol yields. The reduction process was monitored using in situ FT-IR and the materials were characterized using SEM, TEM, NMR, XPS, and powder XRD techniques. The influence of reaction temperature, pressure, and Si-NP concentration on CO reduction were also investigated. Finally, Si particles produced directly from sand were used to convert CO to methanol.
ISSN:1359-7345
1364-548X
DOI:10.1039/C7CC00125H