Preparation of Nano Cuprous Oxide by Plasma Induced Cathode Discharge Electrolysis

doi:10.12068/j.issn.1005-3026.2019.05.012

Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (5): 668-672.DOI: 10.12068/j.issn.1005-3026.2019.05.012

• Materials & Metallurgy • Previous Articles Next Articles

Preparation of Nano Cuprous Oxide by Plasma Induced Cathode Discharge Electrolysis

SHEN Ling-ling¹， ZHAO Bo¹， XU Jun-li²， SHI Zhong-ning¹

1. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral， Ministry of Education， Northeastern University， Shenyang 110819， China; 2. School of Sciences， Northeastern University， Shenyang 110819， China.

Received:2018-04-20 Revised:2018-04-20 Online:2019-05-15 Published:2019-05-17
Contact: SHI Zhong-ning
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Abstract

Abstract: Nano cuprous oxide(Cu₂O)powders were prepared by plasma induced cathode discharge electrolysis in CuSO₄ solution， and the components and morphology of the prepared particles were investigated by various concentrations， electrolysis voltage and time. The results showed that a higher concentration of solution had a positive effect on the formation of Cu₂O phase. As the discharge time extended， the particles aggregated and the size increased from 100nm to 400nm. Increasing the voltage was beneficial for the refinement of particles from 200nm to 40nm.Emission spectrum analysis indicated that there existed hydroxyl radicals and Cu atoms in plasma emission area， which was suggested that the formation mechanism of Cu₂O. Theoretical calculation showed that excitation temperature， the electric field intensity and the arc column jet velocity was 9563K， 2.4×10⁵V/m， and 73m/s， respectivively.

Key words: plasma electrolysis, electrochemistry reaction, free radicals, nano cuprous oxide, formation mechanism

CLC Number:

O646

SHEN Ling-ling， ZHAO Bo， XU Jun-li， SHI Zhong-ning. Preparation of Nano Cuprous Oxide by Plasma Induced Cathode Discharge Electrolysis[J]. Journal of Northeastern University Natural Science, 2019, 40(5): 668-672.

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Preparation of Nano Cuprous Oxide by Plasma Induced Cathode Discharge Electrolysis

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