碳酸盐湿式沉淀-煅烧分解法制备四氧化三钴及其表征

doi:10.13228/j.boyuan.issn1006-6543.20160097

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Abstract The cobalt oxide precursor was prepared by wet precipitation method with cobalt chloride and ammonium bicarbonate as raw materials and Tween-80 as surfactant. The Co3O4 powder was obtained by thermal decomposition method. The morphology，crystal structure and thermal decomposition of precursor particles and Co3O4 powder were characterized by scanning electron microscope，laser particle size analyzer， X-ray diffractometer and thermal analyzer. Results show that the precursor of cobalt oxide prepared with carbonate as precipitant is Co2(OH)2CO3. The spherical cubic Co3O4 powder with uniform particle size distribution and without agglomeration is obtained when the precursor is calcined at 600 ℃ for 4 h. The average particle size of the Co3O4 powder is 4.48 μm and the mass percent of cobalt is 72.11%.

Key words： Co3O4 wet precipitation thermal decomposition Co2(OH)2CO3

Received: 15 August 2016 Published: 27 February 2018

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	Articles by authors
	WANG Wen-Xiang
	YAN Ying-Yan
	LI Hui-Ying
	LIU Ying
	DENG Wei-Jie
	CHEN Shen-Min
	CHEN Jing
	LIU Zhi-Hong

Cite this article:

WANG Wen-Xiang,YAN Ying-Yan,LI Hui-Ying, et al. Preparation and characterization of Co3O4 by wet precipitation-thermal decomposition with carbonate[J]. , 2018, 28(01): 7-10.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20160097 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2018/V28/I01/7

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