Electrodeposition of cobalt from citrate containing baths

Frank, André C.; Sumodjo, Paulo Teng An

doi:10.1016/j.electacta.2014.03.130

Cited by 54 publications

(30 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the citrate containing plating bath, more than 80% of the cobalt(II)’species exists in the form of [CoCit]

^{-}

, the rest comprising non‐complexed Co

^{2 +}

and [CoCit 2 ]

^{4 -}

(). The predominant nickel(II)’citrate species is [NiCit]

^{-}

(>90%) ().…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

Grill

Pötzelberger

Kollender

et al. 2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

Fabrication of cobalt-nickel material libraries was performed by electrodeposition in a modified 3D-printed Hull cell using sulfate-based electrolyte baths containing trisodium citrate or glycine as additives. A transition from anomalous to normal co-deposition behavior was observed for different overall applied current densities. Scanning electron microscopy (SEM) images showed needle-shaped crystallites on the sample obtained from citrate solution and a nodular surface morphology for the material library from glycine solution. Non-enzymatic glucose sensing was carried out by flow-type scanning droplet cell microscopy (FT-SDCM) to investigate the electrocatalytic activity for glucose oxidation.Cobalt-nickel material library fabricated by electrodeposition in the presence of trisodium citrate or glycine as additives using a modified 3D-printed Hull cell.

show abstract

“…In the citrate containing plating bath, more than 80% of the cobalt(II)’species exists in the form of [CoCit]

^{-}

, the rest comprising non‐complexed Co

^{2 +}

and [CoCit 2 ]

^{4 -}

(). The predominant nickel(II)’citrate species is [NiCit]

^{-}

(>90%) ().…”

Section: Resultsmentioning

confidence: 99%

“…In alloy electroplating, it is used as complexing agent, facilitating for example co‐deposition of zinc with iron group metals . Trisodium citrate (

{Na}_{3} italicCit

) is another common additive used in electrodeposition of metals and alloys .…”

Section: Introductionmentioning

confidence: 99%

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

Grill

Pötzelberger

Kollender

et al. 2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…It is known that, at pH > 6, citrate is in the form of Cit 3À anions (with all three carboxylic groups deprotonated), which can complex Co 2+ cations as[Co(Cit)] À or [Co(Cit) 2 ] 4À species [15,16]; besides, both OH À and NH 3 can also complex Co 2 + ions in solution, and mixed complex species containing Cit 3À with either OH-or NH 3 can also be expected, especially at high pHs. The formation equilibrium constants (K f ) are considered to be the combination of the K f of the Co(Cit) À complex and the K f of the complexes Co(NH 3 …”

Section: Resultsmentioning

confidence: 99%

The Influence of Ammonia on the Electroless Deposition of CoB Alloys from Alkaline Citrate containing Baths

Ribeiro

Frank

Sumodjo

2014

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

“…In this work trisodium citrate (Na 3 Cit) was used as a complexing agent. It is widely employed in electrodeposition of cobalt, 45 coppercobalt alloy 35,34,31,32,46 multilayers 33 and copper-nickel. 47,48,6,49 Using the complexation constants of the formed complexes the standard potential for metal deposition from complexing solution can be calculated according to Eq.…”

Section: Resultsmentioning

confidence: 99%

Combinatorial Electrodeposition of Cobalt-Copper Material Libraries

Grill

Kollender

Hassel

2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

A full cobalt-copper material library was successfully prepared from a single experiment by galvanostatic electrodeposition using a modified Hull cell. X-ray fluorescence spectroscopy (XRF) measurements showed, that a composition gradient of 28-96 at.% copper could be achieved. The change of the surface morphology and topography along the material library was examined by scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. X-ray diffraction (XRD) revealed a Vegard-like behavior of the face-centered cubic (fcc) cobalt-copper solid solution, as the lattice constant a can be linearly correlated with the atomic copper ratio. The work function, determined from scanning Kelvin probe (SKP) measurements, was expected to decrease gradually with increasing copper content, but was found to be highest (4.86 eV) for a shiny area within the material library (48-62 at.% Cu), indicating higher nobility. This result was confirmed by localized corrosion potential (E corr ) determinations performed by scanning droplet cell microscopy (SDCM). The unexpected high nobility in work function and E corr for this region go hand in hand with a minimum in surface roughness within the material library.

show abstract

Electrodeposition of cobalt from citrate containing baths

Cited by 54 publications

References 37 publications

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

The Influence of Ammonia on the Electroless Deposition of CoB Alloys from Alkaline Citrate containing Baths

Combinatorial Electrodeposition of Cobalt-Copper Material Libraries

Contact Info

Product

Resources

About