A Zero-Emission Electroless Nickel Plating Bath

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 68.0[Formula: see text]min, 8 cycles and 13.39[Formula: see text][Formula: see text]m/h, respectively. The Ni–P plating layer showed smooth appearance with lots of small continuous nodules, with 12.23[Formula: see text]wt.% 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.

Synthesis And Properties Of Multi-Porous Multi-Doped Nano-Na 3 V 2 (Po 4 ) 3 @C Materials from Electroless Nickel Plating Wastewater

“…Owing to its numerous advantages including uniform layer, high hardness, excellent abrasion resistance and convenient plating process, electroless nickel plating technology has been showing overwhelming inseparability in various elds: machinery, vehicles, electrical and chemical industries, to name but a few. From automobiles to airplanes, from handsets to computers, this technology has an unlimited number of applications [1][2][3][4]. A nickel sulfate-sodium hypophosphite system is the most commonly used plating solution in industry, which is usually composed of nickel sulfate, sodium hypophosphite, citric acid and other additives.…”

Preparation and electrochemical properties of Na3V2(PO4)3/C cathode materials from spent electroless nickel plating bath

“…On the other hand, as an indispensable surface finishing technique, electroless nickel plating has extensively been employed in aerospace, automotive, chemical and electrical industries [22]. A traditional electroless nickel plating solution usually consists of nickel sulfate, sodium hypophosphite, chelating agents and other additives.…”