Ultrarapid Multimode Microwave Synthesis of Nano/Submicron β-SiC

Materials
Min ZhaoHaochen Zhu

Abstract

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.

References

Nov 19, 2015·ACS Nano·Sakineh ChabiYanqiu Zhu
Mar 19, 2016·Scientific Reports·Ali AldalbahiPeter X Feng
Dec 28, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Stephan Handschuh-WangHolger Schönherr
Aug 5, 2017·Materials·Hui WangLuyi Sun

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