均匀沉淀法可控制备氯化镉氨配合物

doi:10.11896/j.issn.1005-023X.2018.24.006

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Abstract In the present work, many complexes of transition metal chloride and ammonia were prepared by homogeneous precipitation method, in which metal chloride was used as raw material, urea as precipitant and alcohol as solvent. The effects of urea concentration, reaction time and temperature on the size and morphology of the products were investigated by taking cadmium chloride as a typical research object. The compositions, thermal stability, morphology and particle size distribution of the product were characterized through X-ray diffraction (XRD), thermogravimetric analysis-differential scanning calorimetry (TG-DSC), scanning electron microscopy (SEM) and laser particle size analyzer (LPSA). The product identified to be diammine cadmium chloride Cd(NH₃)₂Cl₂. With the increase of the urea concentration, the size of the product particles increased correspondingly. The shorter reaction time was benificial to obtain monodisperse and polyhedral Cd(NH₃)₂Cl₂ particles and they seriously agglomerated once the reaction time was prolonged. The morphology of the product particles changed little and barely agglomerated with the increase of the reaction temperature. Furthermore, the size uniformity of the product particles was better at higher temperature.

Key words： homogeneous precipitation method transition metal salt ammonia complex morphology size distribution

Published: 23 January 2019

CLC number:

TQ11

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	Articles by authors
	XU Zhiyong
	FENG Dong
	ZHAO Wenbo
	CHAI Muyuan
	CHEN Ling
	CHEN Yuan

Cite this article:

XU Zhiyong,FENG Dong,ZHAO Wenbo, et al. Controlled Synthesis of Diammine Cadmium Chloride by Homogeneous Precipitation Method[J]. Materials Reports, 2018, 32(24): 4240-4247.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.24.006 OR http://www.mater-rep.com/EN/Y2018/V32/I24/4240

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