A ZERO-EMISSION ELECTROLESS NICKEL PLATING BATH

Wanmin Liu, Qilong Liu, Lv Xu, Mulan Qin and Jiyong Deng
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Wanmin Liu: School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411104, P. R. China
Qilong Liu: #x2020;College of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, P. R. China
Lv Xu: School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411104, P. R. China
Mulan Qin: School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411104, P. R. China
Jiyong Deng: School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411104, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 01, 1-5

Abstract: A zero-emission electroless nickel plating bath was investigated, which consisted of nickel hypophosphite, hypophosphorous acid, lithium acetate, citric acid and maleic acid. The bath stability, bath life and plating rate were 68.0min, 8 cycles and 13.39μm/h, respectively. The Ni–P plating layer showed smooth appearance with lots of small continuous nodules, with 12.23wt.% phosphorus content. The electrochemical measurements showed that the deposit exhibited excellent corrosion resistance. All of these properties of the zero-emission plating bath and its deposit were better than those of the popular plating solution and its layer. It is most significant that the spent plating bath can be used directly as a raw material to prepare LiFePO4/C materials, which conforms to the concept of circular economy.

Keywords: Electroless nickel plating; zero-emission; nickel hypophosphite; corrosion resistance (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

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DOI: 10.1142/S0218625X18501305

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