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Low-temperature synthesis of nanocrystalline β-dicalcium silicate with high specific surface area

Abstract

β-Dicalcium silicate (β-Ca2SiO4) was synthesized for the first time by a simple solution combustion method using citric acid as fuel. The influence of calcination temperature on the average crystallite size, specific surface area and morphology of the powders were investigated by X-ray diffraction technique (XRD), scanning electron microscopy (SEM) and N2 adsorption measurements (BET). The results showed that the increase of calcination temperature from 650°C to 1100°C resulted in larger crystallite size and lower specific surface area of β-Ca2SiO4. The highest specific surface area could reach as high as 26.7 m2/g when the as-burnt powders were calcined at 650°C.

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Acknowledgements

This work is financially sponsored by the National Basic Science Research Program of China (973 Program) (Grant No. 2005CB522700), Science and Technology Commission of Shanghai Municipality (Grant No. 02JC14009), China Postdoctoral Science Foundation (Grant No. 060390649) and Shanghai Postdoctoral Scientific Program (Grant No. 06R214155).

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Correspondence to Jiang Chang.

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Huang, XH., Chang, J. Low-temperature synthesis of nanocrystalline β-dicalcium silicate with high specific surface area. J Nanopart Res 9, 1195–1200 (2007). https://doi.org/10.1007/s11051-006-9202-6

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  • DOI: https://doi.org/10.1007/s11051-006-9202-6

Keywords

  • β-Dicalcium silicate
  • solution combustion method
  • specific surface area
  • calcination
  • aerosols
  • powders