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ZnO whiskers synthesized by rapid microwave reduction reaction

Baoyan Liang, Yanxiang Feng and Wangxi Zhang


ZnO whiskers were rapidly microwave synthesized from micron ZnO powder with Ti reducing agent. The compositions and microstructures of the products were studied using X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy. Results showed that white flocculent ZnO powder began forming at 600 °C and increased in amount with increasing temperature. In the sample obtained at 800 °C, the tetrapod ZnO whiskers had rod-like feet with lengths of 1.5–3 μm and diameters of approximately 0.2–0.5 μm. The reduction reaction was completed at 1 100°C. Coarser and irregularly shaped ZnO whiskers with thick roots and sharp tips formed at 1 100°C.

*Correspondence address, Dr. Wangxi Zhang, Materials & Chemical Engineering school, Zhongyuan University of Technology, Zhengzhou, 450007, P. R. China, Tel.: +8637169975740, Fax: +8637169975740, E-mail:


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Received: 2017-01-12
Accepted: 2017-03-28
Published Online: 2017-07-05
Published in Print: 2017-07-14

© 2017, Carl Hanser Verlag, München