Chinese Physics C > 2001, Vol. 25 > Issue(S1): 17-20

EXAFS Study of ZnO/γ-Al₂O₃Prepared by Co-Precipitation Method

Institue of Physical Chemistry,Peking University,Beijing 100871,China2 Beijing University of Chemistry and Polytechnic,Beijing 100087,China3 Institute of High Energy Physics,CSA,Beijing 100039,China

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Abstract：
The co-precipitated ZnO/γ-Al ₂O ₃system calcined under 200°C,300°C,450°C and 800°C was studied here using XRD and EXAFS and the Zn-centered Radial Distribution Functions were obtained.The nearest Zn-O shell was fitted and a conclusion was drawn that the Zn is coordinated by 4 oxigen atoms,just like within the original ZnO crystal.The changing tendency of RDF peaks of the second Zn-centered shell with the ZnO loading was also discussed.

References

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YANG Peng-Cheng, CAI Xiao-Hai, HAO Jun-Chang, ZI Feng-Lan, XIE You-Chang, HU Tian-Dou, XIE Ya-Ning and ZHANG Jing. EXAFS Study of ZnO/γ-Al ₂O ₃Prepared by Co-Precipitation Method[J]. Chinese Physics C, 2001, 25(S1): 17-20.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

EXAFS Study of ZnO/γ-Al₂O₃Prepared by Co-Precipitation Method

Corresponding author:YANG Peng-Cheng,

Institue of Physical Chemistry,Peking University,Beijing 100871,China2 Beijing University of Chemistry and Polytechnic,Beijing 100087,China3 Institute of High Energy Physics,CSA,Beijing 100039,China

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:2001-06-22

Abstract:The co-precipitated ZnO/γ-Al₂O₃system calcined under 200°C,300°C,450°C and 800°C was studied here using XRD and EXAFS and the Zn-centered Radial Distribution Functions were obtained.The nearest Zn-O shell was fitted and a conclusion was drawn that the Zn is coordinated by 4 oxigen atoms,just like within the original ZnO crystal.The changing tendency of RDF peaks of the second Zn-centered shell with the ZnO loading was also discussed.