Synthesis of New Phase ZnO Nanoparticles Under Room Temperature and Characterization

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (1): 82.

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Synthesis of New Phase ZnO Nanoparticles Under Room Temperature and Characterization

YANG Qing-Lin¹, GUO Lin², WU Zhong-Hua³, JIANG Lei⁴, XU Wen-Guo¹, LI Qian-Shu¹

1. School of Chemical Engineering and Materials Sciences, Beijing Institute of Technology, Beijing 100081, China;
2. Department of Mertireal Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
3. National Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China;
4. Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Bejing 100080, China

Received:2000-04-24 Online:2003-01-24 Published:2003-01-24
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Abstract

Abstract: In the present research, we report the synthesis of ZnO nanoparticles modified by polyvinyl pyrrolidone(PVP). The resulting ZnO has the mean diameter of 4.0 nm with the narrow distribution. It has the same structure phase with bulk ZnO which is synthesized under 450 ℃, 6×10⁸ Pa preparation condition. The EXAFS results reveal that with the decrease of ZnO particle sizes to the nanometer range the coordination number decrease. The interaction between oxygen and Zinc is relatively stronger in these nanosized materials, the Zn-O bond length is slightly shorter than one in the bulk ZnO indicating a structural contraction for the small nanoparticles.

Key words: ZnO nanopartilces, X-ray diffraction, Extended X-ray absorption fine structure

CLC Number:

O643

TrendMD:

YANG Qing-Lin, GUO Lin, WU Zhong-Hua, JIANG Lei, XU Wen-Guo, LI Qian-Shu. Synthesis of New Phase ZnO Nanoparticles Under Room Temperature and Characterization[J]. Chem. J. Chinese Universities, 2003, 24(1): 82.

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Synthesis of New Phase ZnO Nanoparticles Under Room Temperature and Characterization

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