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The chemistry of Pd in cellulose acetate

✍ Scribed by Soon-Taik Hwang; Il-Wun Shim

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
814 KB
Volume
46
Category
Article
ISSN
0021-8995

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✦ Synopsis

Pd( O A C ) ~ complex has been incorporated in cellulose acetate (CA) as a dispersion medium using cosolvent (THF) . The interactions Pd( 11) complexes and cellulose acetate are examined by infrared spectroscopy and thermal analysis (DSC) . The chemical reactivities of Pd-CA films have been investigated by reacting Pd sites with CO, Hz, 02, and C2H4 in the temperature range 25-150Β°C and at the pressure of less than 1 atm. Two different Pdcarbonyls and a Pd( 0 ) -hydride species formed in CA are characterized by their infrared spectra. Treatment of 10 wt % Pd-CA films with hydrogen (600 torr) at 70Β°C produces small Pd metal particles of ca. 30-60 A in diameter in CA, which show catalytic activities under mild conditions in the reactions such as hydrogenation of C2H4 and oxidation of CO.

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