期刊
CATALYSIS LETTERS
卷 124, 期 3-4, 页码 364-368出版社
SPRINGER
DOI: 10.1007/s10562-008-9476-7
关键词
n-butene; 1,3-Butadiene; oxidative dehydrogenation; ferrite catalyst; surface acidity
资金
- SK Energy Corporation [POST-BK21]
- Korea Energy Management Corporation [2005-01-0090-3-010]
A series of metal ferrite (Me(II)Fe(2)O(4)) catalysts were prepared by a co-precipitation method with a variation of divalent metal component (Me(II) = Zn, Mg, Mn, Ni, Co, and Cu) for use in the oxidative dehydrogenation of n-butene to 1,3-butadiene. Successful formation of metal ferrite catalysts with a random spinel structure was confirmed by XRD, ICP-AES, and XPS analyses. The catalytic performance of metal ferrite catalysts in the oxidative dehydrogenation of n-butene strongly depended on the identity of divalent metal component. Acid properties of metal ferrite catalysts were measured by NH(3)-TPD experiments, with an aim of correlating the catalytic performance with the acid property of the catalysts. It was revealed that the yield for 1,3-butadiene increased with increasing surface acidity of the catalyst. Among the catalysts tested, ZnFe(2)O(4) catalyst with the largest surface acidity showed the best catalytic performance in the oxidative dehydrogenation of n-butene.
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