Production and Characterization of Chromium Oxide (Cr2O3) via a Facile Combination of Electrooxidation and Calcination

doi:10.20964/2019.09.21

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源综合利用工程技术中心

	Production and Characterization of Chromium Oxide (Cr2O3) via a Facile Combination of Electrooxidation and Calcination
	Tian, Sen; Ye, Xuemei; Dong, Yaping; Li, Wu; Zhang, Bo; Li, Bo; Feng, Haitao
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2019-09
卷号	14 期号:9 页码:8805-8818
ISSN号	1452-3981
DOI	10.20964/2019.09.21
英文摘要	To synthesize Cr2O3 from ferrochromium, the electrolysis of ferrochromium in an electrolyzing cell and the properties of Cr2O3 prepared by thermal decomposition of (NH4)(2)CrO(4 )were studied. Experimental results showed that with a 1:5 molar ratio of NH3 center dot H2O:2CrO(4)(2-) and current density of 140 A/m(2) at room temperature, Cr and Fe can be completely separated by solid-liquid separation, and (NH4)(2)CrO4 can be obtained. The optimized current efficiency was 62%. The four-step thermal decomposition process of (NH4)(2)CrO4 was analyzed by TG-DTA. The XRD and FTIR results proved that crystalline Cr2O3 with a fine particle size was obtained. Spherical Cr2O3 with a particle size of 71 similar to 216 nm and a specific surface area of 4 similar to 38 m(2)/g was confirmed by SEM and BET. UV-Vis results proved that Cr2O3 presented bright green (L=34.78 similar to 49.97, a=0.91 similar to-14.73, and b*=6.08 similar to 17.92), and the forbidden band width was 1.91 similar to 2.25 eV. The purity of Cr2O3 was over 99%.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34069]
专题	青海盐湖研究所_盐湖资源综合利用工程技术中心中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Tian, Sen,Ye, Xuemei,Dong, Yaping,et al. Production and Characterization of Chromium Oxide (Cr2O3) via a Facile Combination of Electrooxidation and Calcination[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2019,14(9):8805-8818.
APA	Tian, Sen.,Ye, Xuemei.,Dong, Yaping.,Li, Wu.,Zhang, Bo.,...&Feng, Haitao.(2019).Production and Characterization of Chromium Oxide (Cr2O3) via a Facile Combination of Electrooxidation and Calcination.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,14(9),8805-8818.
MLA	Tian, Sen,et al."Production and Characterization of Chromium Oxide (Cr2O3) via a Facile Combination of Electrooxidation and Calcination".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 14.9(2019):8805-8818.