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Preparation, characterization and activity of wet‐proofed Pt/silicalite catalysts
Author(s) -
Rangwala H. A.,
Wanke S. E.,
Otto F. D.
Publication year - 1994
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450720217
Subject(s) - catalysis , chemisorption , hydrogen , characterization (materials science) , materials science , chemical engineering , scanning electron microscope , catalyst support , inorganic chemistry , chemistry , nanotechnology , composite material , organic chemistry , engineering
Abstract A procedure for wet‐proofing Pt/silicalite catalysts with polytetrafluoroethylene fibres is described. The procedure yielded catalysts with stable and high activities for the exchange of hydrogen isotopes between liquid water and hydrogen gas. Characterization of the catalysts by hydrogen chemisorption and scanning electron microscopy showed that the wet‐proofing procedure can produce catalysts in which most of the Pt surface in the Pt/silicalite before wet‐proofing can remain accessible. Hydrogen chemisorption was found to be a valuable tool for prescreening of wet‐proofed catalysts.