Approche pour l'analyse quantitative de la distribution de la taille des pores du gel de silice en utilisant la microscopie à force atomique

M. L. Palash, Sourav Mitra, Sivasankaran Harish, Kyaw Thu, Bidyut Baran Saha

研究成果: ジャーナルへの寄稿記事

抄録

This article discusses a direct approach for assessing irregularly shaped pore distribution of porous materials using Atomic Force Microscopy (AFM). Using the tapping mode, AFM is employed to obtain the surface topographic information of the porous materials commonly used in adsorption applications. Three different types of silica gels, commercially used silica–alumina and acetaminophen samples are investigated using an image processing technique to capture the pore size-related information. Macro and mesopores in a specified region are visualized then quantified and counted using 2-D Fast Fourier Transformation (2D FFT) technique. The results obtained by the AFM technique are then compared with the BET surface area and pore size distribution (NLDFT) extracted from the N2 adsorption isotherms.

元の言語フランス語
ページ(範囲)72-79
ページ数8
ジャーナルInternational Journal of Refrigeration
105
DOI
出版物ステータス出版済み - 9 2019

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Silica gel
Pore size
Atomic force microscopy
Porous materials
Chemical analysis
Adsorption isotherms
Macros
Image processing
Adsorption

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

これを引用

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abstract = "This article discusses a direct approach for assessing irregularly shaped pore distribution of porous materials using Atomic Force Microscopy (AFM). Using the tapping mode, AFM is employed to obtain the surface topographic information of the porous materials commonly used in adsorption applications. Three different types of silica gels, commercially used silica–alumina and acetaminophen samples are investigated using an image processing technique to capture the pore size-related information. Macro and mesopores in a specified region are visualized then quantified and counted using 2-D Fast Fourier Transformation (2D FFT) technique. The results obtained by the AFM technique are then compared with the BET surface area and pore size distribution (NLDFT) extracted from the N2 adsorption isotherms.",
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