Deactivation of CeO2 catalyst in the hydrogenation of benzoic acid to benzaldehyde

The CeO2 catalyst has been investigated for hydrogenation of benzoic acid to benzaldehyde and shows little deactivation in stability test. BET results indicate that no significant sinter was observed on the used catalyst. SEM images show few changes taking place in surface feature of the used cataly...

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Veröffentlicht in:	Catalysis letters 2007-04, Vol.114 (3-4), p.198-201
Hauptverfasser:	MINGBEN CHONG, CHENG, Dang-Guo, LU LIU, FENGQIU CHEN, XIAOLI ZHAN
Format:	Artikel
Sprache:	eng
Schlagworte:	Benzaldehyde Benzoic acid Catalysis Catalysts Cerium oxides Chemistry Crystals Deactivation Exact sciences and technology General and physical chemistry Hydrogenation Stability tests Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Beschreibung
Zusammenfassung:	The CeO2 catalyst has been investigated for hydrogenation of benzoic acid to benzaldehyde and shows little deactivation in stability test. BET results indicate that no significant sinter was observed on the used catalyst. SEM images show few changes taking place in surface feature of the used catalyst. Element analysis confirms that some coke is formed which leads to catalyst deactivation. XRD analysis reveals that crystalline size of catalyst is not relevant to the catalytic behavior in the range from 14.3 nm to 18.4 nm.
ISSN:	1011-372X 1572-879X
DOI:	10.1007/s10562-007-9056-2