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Materials 2018, 11(2), 317;

Ultrarapid Multimode Microwave Synthesis of Nano/Submicron β-SiC

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
Shanghai Collaborative Innovation Centre for WEEE Recycling, Shanghai Second Polytechnic University, Shanghai 201209, China
Department of Electronic & Computer Engineering, University of Limerick, Limerick V94 T9PX, Ireland
Authors to whom correspondence should be addressed.
Received: 1 December 2017 / Revised: 2 February 2018 / Accepted: 2 February 2018 / Published: 22 February 2018
(This article belongs to the Section Carbon Materials)
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This paper presents the design, development and realization of a fast and novel process for the synthesis of 3C silicon carbide (β-SiC) nanorods and submicron powder. Using SiO2 (or Si) and activated carbon (AC), this process allows β-SiC to be synthesized with almost 100% purity in timeframes of seconds or minutes using multimode microwave rotary tube reactors under open-air conditions. The synthesis temperature used was 1460 ± 50 °C for Si + AC and 1660 ± 50 °C for SiO2 + AC. The shortest β-SiC synthesis time achieved was about 20 s for Si + AC and 100 s for SiO2 + AC. This novel synthesis method allows for scaled-up flow processes in the rapid industrial-scale production of β-SiC, having advantages of time/energy saving and carbon dioxide emission reduction over comparable modern processes. View Full-Text
Keywords: microwave; β-SiC; X-ray diffraction; refinement microwave; β-SiC; X-ray diffraction; refinement

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhao, M.; Johnson, M.; He, W.; Li, G.; Zhao, C.; Yu, L.; Huang, J.; Zhu, H. Ultrarapid Multimode Microwave Synthesis of Nano/Submicron β-SiC. Materials 2018, 11, 317.

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