Acta Phys. -Chim. Sin. ›› 1998, Vol. 14 ›› Issue (04): 358-360.doi: 10.3866/PKU.WHXB19980414

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Measurement of Dispersion Capacity of MoO3 on Low Specific Surface Support α-Al2O3

Zhang Bin, Wu Nian-Zu, Xie You-Chang, Tang You-Qi   

  1. Institute of Physical Chemistry,Peking University,Beijing 100871
  • Received:1997-08-18 Revised:1997-10-08 Published:1998-04-15
  • Contact: Xie You-Chang

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Abstract:

Dispersion of MoO3 on low specific surface area support α-Al2O3 was studied withBET, SEM, XPS, XRD and LRS. The dispersion capacity of MoO3 on α-Al2O3 obtained by XPS and XRD are 0.15gMoO3/100m2 α-Al2O3 surface for α-Al2O3 obtained by calcinating γ-Al2O3 at1300℃ and 1200℃ and 0. 17gMoO3/100m2 α-Al2O3 for γ-Al2O3 obtained by calcinating γ-Al2O3at 1100℃.

Key words: Low specific surface support, Spontaneous dispersion, Dispersion capacity