Abstract
Mixed oxides Ln2Cu04 ± λ (Ln = La, Pr, Nd, Sm, Gd) with K2NiF4 structure were prepared. Their crystal structures were studied with XRD and IR spectra. Meanwhile, the average valence of Cu ions and nonstoichiometric oxygen (λ) were determined through chemical analyses. Catalysis of the above-mentioned mixed oxides in the phenol hydroxylation was investigated. Results show that the catalysis of these mixed oxides has close relation with their structures and composition. Substitution of A site atom in Ln2CuO4±λ has a great influence on their catalysis in the phenol hydroxylation.
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Project supported by the National Natural Science Foundation of China.
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Liu, C., Zhao, Z., Ye, X. et al. Catalysis of the rare earth containing mixed oxides Ln2CuO4 in phenol hydroxylation. Sc. China Ser. B-Chem. 40, 512–516 (1997). https://doi.org/10.1007/BF02875420
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DOI: https://doi.org/10.1007/BF02875420