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Citation: WANG Xi-Tao, ZHONG Shun-He. Preparation and Characterization of Ultrafine Non-crystal Fe-P-O Catalysts[J]. Chinese Journal of Applied Chemistry, ;2001, 18(11): 885-888. shu

Preparation and Characterization of Ultrafine Non-crystal Fe-P-O Catalysts

1.
College of Chemical Engineering and Technology, Tianjin University, Tianjin 300072

Received Date: 20 January 2001
Available Online: 6 April 2001
Fund Project: 国家自然科学基金资助项目(29773031) (29773031)

Fe-P-O catalysts were prepared by both the coprecipitation and sol-gel methods. The compositions, structures and the chemisorption of ethane on the surface of Fe-P-O catalysts were investigated by DTA-TG, TEM, XRD, BET, IR and TPR techniques. The results showed that the Fe-P-O catalyst particle prepared by sol-gel method were non-crystal and well-distributed ultrafine particles of 10~20 nm. They gave a higher specific surface area and lattice oxygen activity than that of Fe-P-O catalyst prepared by the coprecipitation method. C₂H₆ could be adsorbed by P=O of the catalyst on its surface in a molecular adsorption state, and the adsorption ability and amount of C₂H₆ increased with temperature. Moreover, the adsorbed amount of ethane on non crystal state of FePO₄ was greater than that on crystal state of FePO₄.
- Fe-P-O catalyst,
- coprecipitation,
- sol-gel method,
- ethane chemisorption
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