Studies about the dispersion process and structure of impregnated CuO/ZrO2 systems

The dispersion process and structure of impregnated CuO/ZrO2 systems were studied by x‐ray diffraction (XRD) and extended x‐ray absorption fine structure (EXAFS). The results showed that, after being calcined at 773 K, monolayer dispersed cupric nitrate decomposed into monolayer dispersed cupric oxi...

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Veröffentlicht in:	Surface and interface analysis 2003-10, Vol.35 (10), p.810-813
Hauptverfasser:	Yang, Peng-Cheng, Cai, Xiao-Hai, Zhao, Li-Yan, Xie, You-Chang, Xie, Yaning, Hu, Tiandou, Zhang, Jing
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Catalysts: preparations and properties Chemistry cupric oxide dispersion Exact sciences and technology EXAFS General and physical chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry XRD
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Zusammenfassung:	The dispersion process and structure of impregnated CuO/ZrO2 systems were studied by x‐ray diffraction (XRD) and extended x‐ray absorption fine structure (EXAFS). The results showed that, after being calcined at 773 K, monolayer dispersed cupric nitrate decomposed into monolayer dispersed cupric oxide on zirconia's surface. The dispersion threshold of CuO was related to its precursor, cupric nitrate. The surface‐dispersed Cu nearest coordination structure changed into about five equally long Cu–O bonds. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:	0142-2421 1096-9918
DOI:	10.1002/sia.1606