The Pore Structure of the ZnO–Fe<SUB>2</SUB>O<SUB>3</SUB> Catalyst

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概要

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• With regard to the ZnO–Fe<SUB>2</SUB>O<SUB>3</SUB> catalyst used for the selective methylation at the ortho position of phenol, the pore structures of the catalysts prepared by five processes were studied. The pore structures of these catalysts were determined by converting the detailed nitrogen desorption isotherm data to the pore-volume distribution. These catalysts had two types of pores, a micropore at about 20 Å and a macropore at 80 Å or more. These pores were sensitive to the sintering conditions. The micropore sizes were independent of the calcination temperature, but the macropore sizes were made proportionally larger with a rise in the calcination temperature. The macropore sizes were related to the particle sizes of the zinc ferrite formed by the solid reaction of ZnO with Fe<SUB>2</SUB>O<SUB>3</SUB>.

• 公益社団法人 日本化学会の論文

著者

• Yamamoto Mitsuyoshi

  The Government Industrial Development Laboratory, Hokkaido

関連論文

• The Pore Structure of the ZnO–Fe2O3 Catalyst

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