Journal article Open Access

Electrodeposition of Fe–W Alloys from Citrate Bath: Impact of Anode Material

Belevskii S.S.; Danilchuk V.V.; Gotelyak A.V.; Lelis M.; Yushchenko S.P.; Dikusar A.I.


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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3734028", 
  "title": "Electrodeposition of Fe\u2013W Alloys from Citrate Bath: Impact of Anode Material", 
  "issued": {
    "date-parts": [
      [
        2020, 
        3, 
        31
      ]
    ]
  }, 
  "abstract": "<p>The effect of the anode material on the rate of electrodeposition of Fe-W alloy coatings from a citrate bath is&nbsp;studied. Both Fe and Ni soluble anodes and Pt and graphite insoluble anodes are addressed. The effects&nbsp;associated with the anode material are attributed to anodic oxidation of an Fe(II)-citrate complex involved in&nbsp;electrodeposition. In addition to its likely oxidation at the anode, this complex catalyzes reduction of W-containing&nbsp;species and acts as precursor to Fe deposition; these processes unfold via the formation of&nbsp;corresponding intermediates, their surface coverage determining the alloy composition. X-ray photoelectron&nbsp;spectroscopy characterization of deposited alloys indicates that the intermediate FeOHads is oxidized by water&nbsp;to form surface oxides. This process can explain the previously reported macroscopic size effect, i.e., the effect&nbsp;of the volume current density on the microhardness of deposited alloys. By using a soluble iron anode, we&nbsp;achieve an unprecedentedly high rate of alloy de position (25 &mu;m/h at a current density of 20 mA/cm2).</p>", 
  "author": [
    {
      "family": "Belevskii S.S."
    }, 
    {
      "family": "Danilchuk V.V."
    }, 
    {
      "family": "Gotelyak A.V."
    }, 
    {
      "family": "Lelis M."
    }, 
    {
      "family": "Yushchenko S.P."
    }, 
    {
      "family": "Dikusar A.I."
    }
  ], 
  "note": "This is a post-peer-review version of an article published in Surface Engineering and Applied Electrochemistry. The final authenticated version is available online at: DOI: 10.3103/S1068375520010020", 
  "type": "article-journal", 
  "id": "3734028"
}
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