Investigation of electrochemical co-deposition of zinc and molybdenum from citrate solutions

Kazimierczak, Honorata; Ozga, P.; Socha, Robert P.

doi:10.1016/j.electacta.2012.12.140

Cited by 36 publications

(24 citation statements)

References 25 publications

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“…26 Similarly, in our work, molybdenum deposition was possible to be limited by adsorbed copper-citrate ions at higher concentration of trisodium citrate. Thus, the optimum concentrations of trisodium citrate, Na 2 MoO 4 and CuSO 4 offer high molybdenum content.…”

Section: Resultsmentioning

confidence: 88%

Copper-Molybdenum Source Ratio and Complexing Agent for High Molybdenum Content in Electrodeposited Cu-Mo

Gotou

Arakawa

Watanabe

et al. 2014

J. Electrochem. Soc.

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Cu-Mo composites have been one of candidates for material of heat-sinks in electronic devices. We obtained Cu-Mo composites by electrodeposition using CuSO 4 and Na 2 MoO 4 with trisodium citrate as complexing agent. The presence of molybdenum in Cu-Mo was demonstrated by X-ray photoelectron spectroscopy and inductively coupled plasma atomic emission spectroscopy. The molybdenum content in Cu-Mo composites depended on the concentration ratio of Na 2 MoO 4 /(Na 2 MoO 4 + CuSO 4 ) in the electrolyte, kinds and concentration of complexing agents. The mol ratio of Na 2 MoO 4 /(Na 2 MoO 4 + CuSO 4 ), from 0.75 to 0.87 provided larger molybdenum content at 0.05 A/dm 2 of electrodeposition current. The molybdenum content increased with decreasing current density during electrodeposition in the range of 0.05-0.3 A/dm 2 . Trisodium citrate was the most effective complexing agent among trisodium citrate, glycolic acid, EDTA (4Na) and combinations of them for increasing molybdenum content. The molybdenum content reached up to 22.9 wt% at 0.396 mol/dm 3 of trisodium citrate concentration. X-ray diffraction shows that no peaks related to molybdenum was observed, moreover, the intensity and the width of Cu(111) peaks decreased and enlarged with increasing molybdenum content. These indicate that the structure of molybdenum in copper-molybdenum composites was amorphous, furthermore, higher molybdenum content made copper structure close to amorphous.

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Section: Resultsmentioning

confidence: 88%

Copper-Molybdenum Source Ratio and Complexing Agent for High Molybdenum Content in Electrodeposited Cu-Mo

Gotou

Arakawa

Watanabe

et al. 2014

J. Electrochem. Soc.

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“…A lot of interest is focused on synthesis of alloys like: Ni-Cu-Mo [29], Zn-Ni [30], Zn-Mo [31], Ni-Sn [32], Co-Pd [8][9][10]33], Co-Rh [34], Fe-Pd [35,36], and Pt-Co-Ni [37] due to their functional properties, while not much attention has been devoted to electrodeposition of Co-Rh alloys although their promising magnetic and catalytic properties. In the literature there is only one paper known to the authors investigating process of codeposition of Co with Rh [34].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Co–Rh alloys from aqueous acidic chloride electrolytes

Mech

Żabiński

Kowalik

et al. 2014

Surface and Coatings Technology

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“…In solution, Mo exists as oxyanions, which is known to form various polyoxyanion at low pH and mono-oxyanions at pH greater than around 6. Therefore, the deposition of Mo is thought to occur with the decrease in the size of oxyanions, which allows for the easier deposition of Mo [23,24]. Figure 3 shows the XRD patterns of the platings deposited at various pH values.…”

Section: Effect Of Bath Ph On Zn-fe-mo Platingsmentioning

confidence: 99%

Effect of the Addition of Molybdenum on the Structure and Corrosion Resistance of Zinc–Iron Plating

et al. 2017

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Zn-Ni plating is indispensable in various industries because of its high corrosion resistance. However, Ni has been reported to trigger allergies; thus, an alternative Ni-free plating is desired. Zn-Fe plating is considered to be a promising candidate, albeit its corrosion resistance still needs to be improved. The corrosion resistance of Zn-Fe plating is expected to increase by the addition of Mo as the third alloying element as it is more noble than Zn and Fe. In this study, Zn-Fe-Mo plating with a corrosion resistance nearly equivalent to that of the Zn-Ni plating was fabricated. Zn-Fe-Mo plating was electrically deposited from continuously-agitated plating baths prepared by mixing ZnSO 4 , FeSO 4 , Na 2 MoO 4 , Na 3 C 6 H 5 O 7 , and Na 2 SO 4 using Fe or Ni plates as the substrate. The surface morphology, composition, crystal phase, and electronic state of Mo of the platings were investigated by scanning electron microscopy equipped with energy-dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The anti-corrosion performance was evaluated by Tafel extrapolation method. Formation of plating comprising a Mo containing alloy phase was found to be crucial for improving corrosion resistance. The Zn-Fe-Mo plating demonstrates promise for replacing anti-corrosion Zn-Ni platings.

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Investigation of electrochemical co-deposition of zinc and molybdenum from citrate solutions

Cited by 36 publications

References 25 publications

Copper-Molybdenum Source Ratio and Complexing Agent for High Molybdenum Content in Electrodeposited Cu-Mo

Copper-Molybdenum Source Ratio and Complexing Agent for High Molybdenum Content in Electrodeposited Cu-Mo

Electrodeposition of Co–Rh alloys from aqueous acidic chloride electrolytes

Effect of the Addition of Molybdenum on the Structure and Corrosion Resistance of Zinc–Iron Plating

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