Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-16T20:15:58.305Z Has data issue: false hasContentIssue false
  • English
  • Français

Characterization and Catalytic Properties of CuOx/CeO2 Nanocomposite Particles

Published online by Cambridge University Press:  02 July 2020

B. Skårman ,
T. Nakayama ,
K. Niihara  and
L.R. Wallenberg
B. Skårman
Affiliation:
Dept. of Inorganic Chemistry 2,National Centre for HREM, Lund University, Lund, Sweden
T. Nakayama
Affiliation:
Institute of Scientific and Industrial Research (ISIR), Osaka University, Osaka, Japan
K. Niihara
Affiliation:
Institute of Scientific and Industrial Research (ISIR), Osaka University, Osaka, Japan
L.R. Wallenberg
Affiliation:
Dept. of Inorganic Chemistry 2,National Centre for HREM, Lund University, Lund, Sweden
Get access

Abstract

Cerium dioxide (ceria) is known for its excellent oxygen storage capacity (OSC) and redox properties. Addition of the transition metal oxide CuOx, improves the low-temperature oxidation activity of ceria by a synergistic mechanism. It has been shown that copper oxide on the high energy CeO2{001}surface, is exceedingly more efficient than on the statistically dominating lowenergy {111} surface for obtaining a high catalytic conversion rate of CO to CO2.:To investigate morphology and composition effects, in a situation which is closer to an industrial catalyst, we have produced nanocomposite particles in the CuOx/CeO2 system with different composition, size, and nanostructured morphology (Fig. la-d) utilizing the inert gas condensation (IGC) technique.

The samples were characterized in a JEM 4000EX HRTEM, and a JSM-840A SEM, interfaced with a Link AN 10000 EDS system. The specific surface area was measured using the adsorption of N2 (BET method).

Type
Characterization of Catalysts (Organized by S. Bradley)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 1074 - 1075
Copyright
Copyright © Microscopy Society of America 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

references

1.Yao, H. C., Yao, Y. F., J. CataL, 86 (1984)254CrossRefGoogle Scholar
2.Liu, W., Flytzani-Stephanopoulos, M., J. CataL, 153 (1995)304CrossRefGoogle Scholar
3.Skarman, B., Wallenberg, L. R.et al., J. CataL, 181 (1999)6CrossRefGoogle Scholar
4.Inoue, M., Kimura, M., Inui, T., Chem. Commun., (1999)957CrossRefGoogle Scholar
5.Wallenberg, L.R., Andersson, A.et al., Ultramicrosc. 34 (1990)33CrossRefGoogle Scholar