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Journal of Materials Science

, Volume 43, Issue 15, pp 5331–5335 | Cite as

Synthesis and characterization of high surface area silicon carbide by dynamic vacuum carbothermal reduction

  • Ying Zheng
  • Yong Zheng
  • Rong Wang
  • Kemei Wei
Article

Abstract

Silicon carbide (SiC) precursor was obtained by sol–gel used tetraethoxysilane as silicon source and saccharose as carbon source, and then the precursor was used to prepare SiC by carbothermal reduction under dynamic vacuum condition. The samples were characterized by X-ray diffraction, scanning electron microscope, and low-temperature nitrogen adsorption–desorption measurement. The results showed that the carbothermal temperature for synthesizing SiC needed to be at 1,100 °C under dynamic vacuum. At this temperature, the obtained sample is composed of agglomerated regular grains with size ranging from 20 to 40 nm and has a high surface area of 167 m2/g and the main pore size center at 5.3 nm.

Keywords

Carbothermal Reduction Vacuum Furnace Oxalic Acid Solution Dynamic Vacuum Silicon Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The project was supported by the National Natural Science Foundation of China (No.20576021), the Natural Science Foundation of Fujian Province of China (No.E0710004), Science and Technology Priority Project of Fujian Province (2005HZ01-2).

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.College of Chemistry and Materials ScienceFujian Normal UniversityFuzhouChina
  2. 2.National Engineering Research Center of Chemical Fertilizer CatalystFuzhou UniversityFuzhouChina

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