Effect of Calcination Temperature on the Catalytic Oxidation of Formaldehyde Over Co.sub.3O.sub.4-CeO.sub.2 Catalysts

Effect of Calcination Temperature on the Catalytic Oxidation of Formaldehyde Over Co.sub.3O.sub.4-CeO.sub.2 Catalysts

The effect of calcination temperature (350-650 °C) on the structure and catalytic activity of Co.sub.3O.sub.4-CeO.sub.2 mixed oxides prepared by sol-gel method was investigated by XRD, H.sub.2-TPR, O.sub.2-TPD and formaldehyde (HCHO) oxidation. The Co.sub.3O.sub.4-CeO.sub.2 calcined at 450 °C (Co.su...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Catalysis Surveys from Asia 2017-09, Vol.21 (3), p.143
Hauptverfasser: Huang, Fenglin, Chen, Canchang, Wang, Fan, Wang, Bing, Zhang, Lulu, Lu, Suhong, Li, Kelun
Format: Artikel
Sprache:eng
Schlagworte:
Active oxygen
Catalysts
Formaldehyde
Oxidation-reduction reaction
Oxides
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The effect of calcination temperature (350-650 °C) on the structure and catalytic activity of Co.sub.3O.sub.4-CeO.sub.2 mixed oxides prepared by sol-gel method was investigated by XRD, H.sub.2-TPR, O.sub.2-TPD and formaldehyde (HCHO) oxidation. The Co.sub.3O.sub.4-CeO.sub.2 calcined at 450 °C (Co.sub.3O.sub.4-CeO.sub.2-450) exhibited the best performance, showing that the complete oxidation of HCHO was achieved at temperature as low as 80 °C. The results of characterizations revealed that the Co.sub.3O.sub.4-CeO.sub.2-450 had excellent catalytic activity due to the larger specific surface area, the best reducibility and more abundant surface active oxygen species.
ISSN:1571-1013
DOI:10.1007/s10563-017-9234-1