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Citation: Liu Changkun, Shen Yongcun, Xi Qiang. Preparation, Structure and Catalytic Property of Cobalt Chromium Mixed Oxide Ultrafine Particle[J]. Chinese Journal of Applied Chemistry, ;1996, 13(6): 72-74. shu

Preparation, Structure and Catalytic Property of Cobalt Chromium Mixed Oxide Ultrafine Particle

1.
Department of Fine Chemistry, Wuhan Institute of Chemical Technology, Wuhan 430073

Received Date: 16 February 1996
Available Online: 2 July 1996

Cobalt chromium mixed oxide ultrafine particle catalysts were prepared by coprecipitation and sol-gel methods. The catalytic properties of catalysts for catalytic oxidation of 2,3,6-trimethylphenol to trimethyl-p-benzoquinone were investigated.It is shown that the catalyst with Co/Cr=1 prepared by sol-gel method is the best.The structures of catalysts were characterized by TEM,XRD and DTA-TG.The mixed oxide is amorphous under 350℃.The thermal stability of this amorphous catalyst is higher than that of Co₃O₄ and Cr₂O₃.
- cobalt chromium mixed oxide,
- ultrafine particle,
- catalyst,
- preparation,
- structure,
- catalytic oxidation,
- trimethylphenol,
- trimethyl-p-benzoquinone
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