ADEM Publications, Presentations and other output

ADEM--14-076

Title:

Defect Chemistry of Ceria Nanorods

Author(s)

Agarwal, Shilpa; Hensen, Emiel ; Lefferts, Leon; Mojet, Barbara ;

Identification

J. Phys. Chem. C

ISBN

DOI

10.1021/jp409989y

Publication date

2014-02-03

Number of pages

11

Full text

not available

Abstract

Ceria nanorods were investigated using in situ Raman and FTIR spectroscopies for CO adsorption and subsequent reaction with water at 200 and 350 °C. The involvement of defects in ceria nanorods during CO adsorption and reaction with H2O is dependent on the temperature. At 200 °C, most of the carbonate and formate species formed in CO do not involve the formation of defects, while at 350 °C all of the carbonates and formates formed can be correlated to the formation of defects (15% by formates and 85% by mono/bidentate carbonates). Finally, at 350 °C very stable polydentate carbonates are formed that do not induce defects and cannot be regenerated with water.