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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    "description": "<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>", 
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    "title": "Electrodeposition of Fe\u2013W Alloys from Citrate Bath: Impact of Anode Material", 
    "notes": "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", 
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    "keywords": [
      "electrodeposition, Fe-W alloys, anode, volume current density, macroscopic size effect, x-ray photoelectron spectroscopy, iron-citrate complexes, microhardness"
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    "publication_date": "2020-03-31", 
    "creators": [
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        "affiliation": "Institute of Applied Physics", 
        "name": "Belevskii S.S."
      }, 
      {
        "affiliation": "Shevchenko Pridnestrovie State University", 
        "name": "Danilchuk V.V."
      }, 
      {
        "affiliation": "Shevchenko Pridnestrovie State University", 
        "name": "Gotelyak A.V."
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      {
        "affiliation": "Lithuanian Energy Institute", 
        "name": "Lelis M."
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      {
        "affiliation": "Institute of Applied Physics", 
        "name": "Yushchenko S.P."
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        "affiliation": "Institute of Applied Physics/Shevchenko Pridnestrovie State University", 
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