Determination of metal dispersity of Pd/SiO2 catalysts by transmission electron microscopy and H2?O2 chemisorption |
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| Authors: | T Paryjczak and J A Szymura |
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| Institution: | (1) Institute of General Chemistry, Technical University of Lódz, 90-924 Lódz, Poland;(2) Institute of Technology and Chemical Engineering, Technical-Agricultural Academy, 85-326 Bydgoszcz, Poland |
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| Abstract: | Dispersity of palladium for a series of Pd/SiO2 catalysts has been determined by TEM and H2–O2 chemisorption. The mean crystallite dimensions obtained by these methods have been compared. Assuming O/Pds to be 0.6 for Pd crystallites larger than 9 nm, good agreement has been observed between the results of the two experimental methods.
               Pd/SiO2         H2–O2.    ,  .  O/Pds 0.6, Pd  9 ,  .
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