草酸盐湿式沉淀-煅烧分解法制备四氧化三钴及其表征

doi:10.13228/j.boyuan.issn1006-6543.20160110

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Abstract The cobalt oxide precursor was prepared by wet precipitation method with cobalt chloride as cobalt source，ammonium oxalate as precipitating agent，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，X-ray diffractometer and thermal analyzer. Results show that the precursor of cobalt oxide prepared with oxalate as precipitant is CoC2O4·2H2O. Relatively pure Co3O4 powder can be obtained when the precursor is calcined at 600 ℃ for 4 h. The Co3O4 powder basically maintains the original shape of precursor，which are still needle (rod) shape and the edge of the particles become smooth.

Key words： Co3O4 wet precipitation thermal decomposition oxalate

Received: 22 September 2016 Published: 10 August 2017

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

Cite this article:

LI Hui-Ying,WANG Wen-Xiang,LIU Ying, et al. Preparation and characterization of Co3O4 by wet precipitation-thermal decomposition with oxalate[J]. , 2017, 27(04): 17-21.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20160110 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2017/V27/I04/17

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