The pore structure of chrominophosphate catalysts

Yu Wen Chen, Yung Chih Kuo

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A series of chrominophosphates (CrPs) with various P/Cr ratios were prepared by the precipitation method. The pore structures of these catalysts were characterized by nitrogen adsorption and mercury-penetration porosimetry. The results indicated that the micro-pores with diameters less than 20 nm were due to the dehydration process and had a slit-shaped geometry. There were two types of large pores (meso- and macro-) with diameters greater than 20 nm. These pores had a cylindrical pore-shape. The meso-pores can be attributed to the packing of particles and the macro-pores are essentially due to the packing of the aggregates of the particles.

Original languageEnglish
Pages (from-to)137-142
Number of pages6
JournalCatalysis Letters
Volume13
Issue number1-2
DOIs
StatePublished - Mar 1992

Keywords

  • catalyst characterization
  • Chrominophosphate
  • pore structure

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