Electrochemical Preparation and Reaction Mechanism of Nanocrystalline NiO

Authors

Jia-shan GU, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000,;
Ai-jie HAN, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000,;
Xing-fu ZHOU, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000,;
Dao-bao CHU, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000,;
Chang-jian LIN, State Key Laboratory for Physics Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China;

Corresponding Author

Dao-bao CHU

Abstract

Metallic nickel was electrochemically dissolved in absolute ethanol and acetylacetone mixed solutions and in the presence of Bu 4NBr (as an electron-conductive additive). The electrolyte solution containing the precursor was then directly hydrolyzed to obtain nanocrystalline NiO. The precursor was characterized by FTIR?HNMR?Raman spectra and the nano-powder was characterized by XRD and TEM. The results showed that the NiO powder after calcined at 450 ℃ had formed the cubic NaCl structure and the nanocrystalline NiO prepared by this method had narrow size distribution of 10～15 nm. Moreover, the product yield could be improved by controlling temperature below 30～40 ℃. The reaction mechanism was also discussed in this paper.

Keywords

Electrochemistry, Sol-gel, Nano-sized NiO

DOI Link

https://doi.org/10.61558/2993-074X.1471

Publication Date

2002-11-28

Online Available Date

2002-11-28

Revised Date

2002-11-28

Received Date

2002-11-28

Recommended Citation

Jia-shan GU, Ai-jie HAN, Xing-fu ZHOU, Dao-bao CHU, Chang-jian LIN. Electrochemical Preparation and Reaction Mechanism of Nanocrystalline NiO[J]. Journal of Electrochemistry, 2002 , 8(4): 427-432.
DOI: 10.61558/2993-074X.1471
Available at: https://jelectrochem.xmu.edu.cn/journal/vol8/iss4/5