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Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
Sponsored by：Jiangxi University Of Science And Technology
Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 10 Issue 2
Apr.  2019
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Article Contents
Abstract
References
XING Kangqian, YIN Yanhong, WAN Shiqin, ZHENG Huanqin, LIU Pengfei. Research on preparation of flowerlike cerium oxide by using polyvinyl alcohol assisted with ethylene glycol[J]. Nonferrous Metals Science and Engineering, 2019, 10(2): 110-115. DOI: 10.13264/j.cnki.ysjskx.2019.02.016
Citation: XING Kangqian, YIN Yanhong, WAN Shiqin, ZHENG Huanqin, LIU Pengfei. Research on preparation of flowerlike cerium oxide by using polyvinyl alcohol assisted with ethylene glycol[J]. Nonferrous Metals Science and Engineering, 2019, 10(2): 110-115. DOI: 10.13264/j.cnki.ysjskx.2019.02.016
shu

Research on preparation of flowerlike cerium oxide by using polyvinyl alcohol assisted with ethylene glycol

  • 1.

    School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

  • 2.

    Chongyi Zhangyuan Tungsten Co., Ltd., Ganzhou 341000, China

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  • Received Date: August 05, 2018
  • Published Date: April 29, 2019
    Graphical Abstract
    • Abstract
  • Cerium oxide with irregular shapes provided by a company was dissolved by adding concentrated nitric acid and hydrogen peroxide. With deionized water or both deionized water and ethylene glycol as solvent, polyvinyl alcohol as a dispersant, and ammonium oxalate as a precipitant, cerium oxalate precursors can be synthesized by direct precipitation method. Then, in a high-temperature reactor, the cerium oxalate precursors were calcinated at 600 ℃ for 2 h, heating rate of 8 oC/min. After that, cerium oxide was obtained. With deionized water as solvent and polyvinyl alcohol as a dispersant, results showed that the obtained cerium oxide was fragile and that its sizes varied. Besides, the thickness, length and width of the cerium oxide was about 100 nm, 3~10 μm, and 1~2 μm, respectively. And its specific surface area was 14.9 m2/g. When both deionized water and ethylene glycol were used as solvent and polyvinyl alcohol was used as dispersant, the prepared cerium oxide was evenly shaped and had a smooth surface. The length, width and thickness of the cerium oxide were about 4 μm, 1.5 μm and 100 nm, respectively. The flowerlike cerium oxide with an average diameter of 2~5 μm had a specific surface area of 21.45 m2/g. Based on the experiment result, it could be expected that other flowerlike rare earth oxides could be regulated by using polyvinyl alcohol assisted with ethylene glycol.
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    • References (22)
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