Mechanistic study of Ni–Cr–P alloy electrodeposition and characterization of deposits

Liu, Shubin; Shohji, Ikuo; Kobayashi, Tatsuya; Hirohashi, Junichiro; Wake, Tsunehito; Yamamoto, Hiroki; Kamakoshi, Yuichiro

doi:10.1016/j.jelechem.2021.115582

Cited by 19 publications

(7 citation statements)

References 40 publications

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“…Two reduction peaks at −0.70 V and −0.85 V were observed in the voltametric plot, confirming that reduction in Cr(III) ions has two steps in a simple aqueous solution. This result is consistent with that reported by Hecho et al., to explain the observed phenomena [29–31]. We also characterized the optimum electrodeposition time was by checking the Cr surface features with different applying potential time such as 100, 200, and 300 sec at −1.0 V. As seen in Figures 2(B)–(D), an electrodeposition time of 200 s is best from observing uniformity of the Cr film quality under an optical microscope.…”

Section: Figuresupporting

confidence: 90%

Electrochemical Sensing Platform Integrated with Solid‐state Reference Electrode Based on Indium Tin Oxide Interdigitated Array Electrodes

et al. 2022

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We present a new strategy for the fabrication of a fully integrated electrochemical platform. The three‐electrode system consists of an indium tin oxide interdigitated array as working electrode, a solid‐state reference electrode, and an electrodeposited Pt counter electrode that are placed in microfluidic channel. By controlling the electrodeposition conditions, such as the applied potential and time, the stability and uniformity of the films can be optimized. A solid‐state reference electrode was fabricated on the nanoporous Pt via electropolymerization of poly‐1,3‐phenylenediamine. This system provides a simple method for the fabrication of three‐electrode system and opens the possibility for an electroanalytical platform.

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Section: Figuresupporting

confidence: 90%

Electrochemical Sensing Platform Integrated with Solid‐state Reference Electrode Based on Indium Tin Oxide Interdigitated Array Electrodes

et al. 2022

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“…Compared to a 0.2 Ni plating solution, a 0.2 Ni-0.1 P plating solution exhibits almost the similar feature except that the peak potential shifts slightly to the positive direction, suggesting that P is co-deposited with Ni. Similar results are also reported in some literature [28,41]. This finding is typically different from the fabrication of Ni-P by electroless plating, where the P in the Ni-P alloy is obtained by the decomposition of H 2 PO 2 À in the temperature range of…”

supporting

confidence: 88%

“…Similar results are also reported in some literature. [28,41] This finding is typically different from the fabrication of Ni-P by electroless plating, where the P in the Ni-P alloy is obtained by the decomposition of H 2 PO 2 À in the temperature range of 60-95 C. [42][43][44] Obviously, the onset potential of Ni (II) ! Ni in 0.2 Ni-0.1 P is more positive (À0.84 V vs. Ag) than that in 0.2 Ni (À0.94 V vs. Ag), suggesting that H 2 PO 2 À promotes the initiation of Ni-P alloy nucleation.…”

Section: Electrodeposition and Characterization Of Ni-p Alloysmentioning

confidence: 99%

Electrodeposition of Ni‐P alloy from deep eutectic solvent and its electrocatalytic activity toward hydrogen evolution reaction

Sheng

Wang

et al. 2022

Can J Chem Eng

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Ni‐P alloys have been successfully electrodeposited in the choline chloride and ethylene glycol with a molar proportion of 1:2(CE) electrolyte and their activities toward hydrogen evolution reaction (HER) have been also evaluated. The electrodeposition of Ni‐P alloy follows a co‐deposition process, and the bulk growth of which depends on an instantaneous nucleation under diffusion control. The morphologies of Ni‐P alloys are significantly influenced by the P content, and low P content can lead to a smooth surface. As expected, Ni‐9.0 wt.% P alloy shows an impressive HER catalytic performance with a Tafel slope (b) of 72.9 mV dec−1 and an overpotential of 105 mV at 50 mA, in agreement with its large ECSA (Cdl = 3.25 mF cm−2) and small interface charge‐transfer resistance. More interestingly, Ni‐9.0 wt.% P alloy exhibits a sustainable catalytic activity toward HER after 1000 cycling test with a tiny potential decline of ~10 mV at 100 mA cm−2. Such a striking HER activity of Ni‐9.0 wt.% P alloy can be attributed to the synergistic effect among the induced active sites from lattice contraction, negatively charged P incorporation, and a mixed nanometre crystal and amorphous structure. Thus, Ni‐P alloy electrodeposited in a CE‐based electrolyte can be used as a promising electrode material with high HER activity in alkaline solutions for hydrogen production.

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“…Using the orthogonal experimental method to investigate the effect of plating solution composition, process parameters, etc., on coating appearance, deposition rate, surface hardness, and other indicators [17] , three plating solution components, namely, chromium chloride (CrCl 3 •6H 2 O), citric acid…”

Section: Orthogonal Experimentsmentioning

confidence: 99%

Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel

Mei,

Yang,

Zheng

et al. 2024

Preprint

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65Mn alloy steel, as a promising raw material for the manufacture of knitting needles, requires in-depth study in order to enhance its surface hardness and wear-corrosion resistance. This study focused on the chemical deposition and properties of Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel. The effects of plating solution composition, process parameters, and their effects on coating deposition rate, surface hardness, and other indicators were also analyzed. The results showed that, under conditions of 12 g/L CrCl3·6H2O, 5 g/L C6H8O7·H2O, 20 g/L C3H6O3, pH 5.5, and a temperature of 70°C, the coating obtained exhibited optimal performance, with a deposition rate of 3.292 µm/h, a microhardness reaching 627.28 HV0.2, and P and Cr elemental contents of 9.16 and 0.127 wt%, respectively. The coating structure was dense, with good adhesion and minimal porosity. To further enhance the wear resistance, a Ni-Cr-P coating was prepared using the aforementioned process parameters, followed by heat treatment. The effects of heat treatment temperature on the microstructure, microhardness, X-ray diffraction (XRD) spectra, and other characteristics were analyzed. The results indicated an optimal heat treatment temperature for the coating of 200°C. Following heat treatment, the microhardness of the coating remained relatively unchanged, and there was a tendency for the coating structure to become more crystalline, leading to improved wear and corrosion resistance.

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Mechanistic study of Ni–Cr–P alloy electrodeposition and characterization of deposits

Cited by 19 publications

References 40 publications

Electrochemical Sensing Platform Integrated with Solid‐state Reference Electrode Based on Indium Tin Oxide Interdigitated Array Electrodes

Electrochemical Sensing Platform Integrated with Solid‐state Reference Electrode Based on Indium Tin Oxide Interdigitated Array Electrodes

Electrodeposition of Ni‐P alloy from deep eutectic solvent and its electrocatalytic activity toward hydrogen evolution reaction

Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel

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