Electrodeposition and Electroless Deposition of Metallic Powders: A Comparison

Djokić, Stojan S.; Nikolic, D Nebojsa; Živković, Predrag; Popov, Konstantin; Djokic, Nada

doi:10.1149/1.3551487

Cited by 27 publications

(9 citation statements)

References 24 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electrodeposition processes of the normal metals are accompanied by formation of various morphological forms, such as granules, crystals of regular and irregular shapes, needle-like and spongy-like particles, dendrites, etc. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] During many years systematic investigations, 24,25 differences in formation of the morphological forms of these metals were specified. It is concluded that Pb and Zn can be denoted as the limiting cases from the group of the normal metals.…”

Section: Introductionmentioning

confidence: 99%

Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

Nikolić

Živković²,

Branković

et al. 2017

JSCS

View full text Add to dashboard Cite

The processes of lead and zinc electrodeposition from the very dilute electrolytes were compared by the analysis of polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of the deposits obtained in the galvanostatic regime of electrolysis. The exchange current densities for lead and zinc were estimated by comparison of experimentally obtained polarization curves with the simulated ones obtained for the different the exchange current density to the limiting diffusion current density ratios. Using this way for the estimation of the exchange current density, it is shown that the exchange current density for Pb was more than 1300 times higher than the one for Zn. In this way, it is confirmed that the Pb electrodeposition processes are considerably faster than the Zn electrodeposition processes. The difference in the rate of electrochemical processes was confirmed by a comparison of morphologies of lead and zinc deposits obtained at current densities which corresponded to 0.25 and 0.50 values of the limiting diffusion current densities.

show abstract

Section: Introductionmentioning

confidence: 99%

Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

Nikolić

Živković²,

Branković

et al. 2017

JSCS

View full text Add to dashboard Cite

show abstract

“…3 These types of powder particles are formed at low overpotentials and hence use relatively small amounts of energy which is of very high technological significance for the application of electrolysis processes in the production of these metal powders. Different to these types of dendrites, highly branched 3D (three-dimensional) dendrites were formed by the electrodeposition of intermediate 3,4,[8][9][10][11][12][13] and inert 14,15 metals. Due to the parallel process of hydrogen evolution, cauliflower-like powder particles are often formed during electrolysis of some intermediate metals (Cu) 4,16,17 and inert [18][19][20][21][22] metals.…”

Section: Introductionmentioning

confidence: 99%

Morphological and crystallographic characteristics of electrodeposited lead from a concentrated electrolyte

2013

View full text Add to dashboard Cite

Electrodeposition of lead from a concentrated nitrate solution was examined by scanning electron microscopy (SEM) and by X-ray diffraction (XRD) analysis of the obtained powder particles. Single crystals of the (111) preferred orientation were formed at a low overpotential by ohmic controlled electrodeposition. Irregular crystals, needle-like and fern-like dendrites, predominantly of the (111) preferred orientation, were formed at high overpotentials (the diffusion control of the electrodeposition). The ratio of Pb crystallites oriented in the (200), (220), (311) and (331) planes increased with increasing electrodeposition overpotential. The correlation between the morphologies and crystallographic structures of the lead deposits was discussed by the consideration of general characteristics of growth layers in electrodeposition processes.

show abstract

“…The method for silver deposition described by S. S. Djokić et al . was applied. The probe tip was soaked in 0.1 M AgNO 3 with 0.5 M NH 4 OH and 0.5 M (NH 4 ) 2 SO 4 in which NH 4 OH was added to dissolve Ag 2 SO 4 precipitate.…”

Section: Materials and Experimentalmentioning

confidence: 99%

“…On the other hand, silver/silver chloride (Ag/AgCl) is commonly used as the reference electrode since it is simple, compact, stable, and non‐toxic and has high exchange‐current density. Besides, for the formation of Ag/AgCl, the deposition solution prepared from silver nitrate salt can be obtained easily and with quite low price . Several factors, such as dissolution or inherent problems, have effects on the durability of the thin film Ag/AgCl.…”

Section: Introductionmentioning

confidence: 99%

An Arrayed Micro‐glutamate Sensor Probe Integrated with On‐probe Ag/AgCl Reference and Counter Electrodes

2018

View full text Add to dashboard Cite

Complete all‐in‐one multi‐arrayed glutamate (Glut) sensors have been constructed on a silicon‐based micromachined probe composed of micro‐platinum (Pt) working electrodes, a micro‐silver/silver chloride (Ag/AgCl) reference electrode (RE), and a micro‐Pt counter electrode (CE). The OCP shift of the electrodeposited Ag/AgCl on‐probe micro‐reference electrode compared with a Ag/AgCl wire is <0.1 mV/h. The composition ratio of Ag, Cl, and Pt on the electrodeposited on‐probe micro‐reference electrode is observed to be 1.00 : 0.48 : 0.02 analyzed by EDS. The miniaturized amperometric Glut biosensors were constructed on working electrode sites (electrode area: ∼8.5×10−5 cm2) of the microprobe modified with glutamate oxidase (GlutOx) enzyme layers for the selective, fast, and continuous detection of L‐glutamate. The sensor selectivity towards common electroactive interferents has been improved significantly by coating the electrode surface with perm‐selective polymer layers, overoxidized polypyrrole (PPY) and Nafion®. The sensitivity, detection range, and response time of the proposed all‐in‐one Glut biosensors are 204.7±5.8 nA μM−1 cm−2 (N=5), 4.99–109 μM, and 2.7±0.3 sec, respectively and no interferent signals of AA and DA were observed. The sensor can be reused over 19 times of continuous repetitive operation (total measurement time: ∼4 hours) and the sensor sensitivity can retain up to four weeks of storage.

show abstract

Electrodeposition and Electroless Deposition of Metallic Powders: A Comparison

Cited by 27 publications

References 24 publications

Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

Morphological and crystallographic characteristics of electrodeposited lead from a concentrated electrolyte

An Arrayed Micro‐glutamate Sensor Probe Integrated with On‐probe Ag/AgCl Reference and Counter Electrodes

Contact Info

Product

Resources

About