EXAFS Study of ZnO/γ-Al<SUB>2</SUB>O<SUB>3</SUB> Prepared by Co-Precipitation Method

YANG Peng-Cheng; CAI Xiao-Hai; HAO Jun-Chang; ZI Feng-Lan; XIE You-Chang; HU Tian-Dou; XIE Ya-Ning; ZHANG Jing

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

EXAFS Study of ZnO/γ-Al₂O₃ Prepared 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-Al₂O₃ system 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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Park Sang-Woo, Joo Oh-Shim, Jung Kwang-Deog et al. Appl.Cata1., 2001, A211:81-902 ZOU Hu. SHEN Jian-Yi. Thermochimiea Acta. 2000. 351:165-170.3 ZHAO Bi-Ying, WU Nian-Zu, GUI Lin-Lin et al. Wulihuaxue Xuebao, 1986, 2:166-172 (in Chinese)(赵璧英，吴念祖，桂琳琳等.物理化学学报，1986, 2:166-172 )4 ZHAO Bi-Ying, YAO Xiao-Qiang, TANG You-Qi. Wulihuaxue Xuebao, 1986, 2:569-572 (in Chinese)(赵璧英。姚小强，唐有棋.物理化学学报，1986, 2:569-572)

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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-Al₂O₃ Prepared 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-Al₂O₃ Prepared 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-Al₂O₃ system 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.