Electrocrystallization of palladium from Pd(NH3)4Cl2 bath on stainless steel 316L

Danaee, I.; Shoghi, Fatemeh; Mobarake, Mostafa Dehghani; Kameli, Mohammad

doi:10.1007/s10008-009-0788-3

Cited by 15 publications

(6 citation statements)

References 43 publications

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“…The electrodeposition of palladium has been studied on various electrodes such as polymer matrix, and porous stainless steel electrode [6][7][8][9]. The electrochemical layer-by-layer growth of the palladium was reported on copper and a gold single crystal electrode [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Kinetics and mechanism of palladium electrodeposition on graphite electrode by impedance and noise measurements

Danaee

2011

Journal of Electroanalytical Chemistry

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Section: Introductionmentioning

confidence: 99%

Kinetics and mechanism of palladium electrodeposition on graphite electrode by impedance and noise measurements

Danaee

2011

Journal of Electroanalytical Chemistry

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“…This allows selective extraction of the valuable metals as soluble ammonia complexes, resulting in the generation of high purity product. So far, a lot of metal and alloys have been electrodeposited from ammonia-containing solution, such as, Zn, 17 Zn-Ni alloy, Cu, [18][19][20][21] , CdTe, 22 Co, 23 Pd, 24 CdTe, 25,26 Pt-M (M = Ir, Ru, Rh, and Ni). 27 To the best of our knowledge, there have been few studies on electrodepositing nickel from the ammonia containing solution.…”

mentioning

confidence: 99%

Electrodeposition of Bright Nickel from Liquid Ammonia Solution Containing Chloride

Wu¹,

Wang²,

Hou³

et al. 2016

J. Electrochem. Soc.

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The present work aims to prepare bright nickel from liquid ammonia solution containing chloride. The effect of sodium benzenesulfinate concentration on the current efficiency, electrochemical nucleation behavior, crystallographic orientations and surface morphology at macro and micro level of the electrodeposited nickel were studied systematically. Results show that the introduction of sodium benzenesulfinate can efficiently transfer the black nickel to smooth, compact and dense nickel. X-ray diffraction revealed that the (111) plane is the most preferred plane and is not affected by the presence of SBS in the electrolyte. Electrochemical measurements show that the deposition potential of nickel moves to more negative direction and the cathodic current decreases with the presence of sodium benzensulfonate. Moreover, sodium benzenesulfinate has a great influence on the crystallization and nucleation growth behavior of nickel, making the nucleation mechanism transfer from instantaneous to progressive and therefore reducing the nucleation rate.

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“…The synthesis of these materials has been accomplished using various techniques, including chemical reduction [4], ion exchange [5], vapor deposition [6][7][8], thermal evaporation in ultrahigh vacuum [9,10], and electrochemical deposition, among others. Palladium (Pd) has been electrodeposited in a wide range of electrolytes [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], with processes broadly categorized based on pH [26]. Ammonia stands out as the optimal complexing agent for palladium electrodeposition due to its ability to generate trans square planar palladium (II) complexes in these solutions, such as Pd(NH 3 ) 2 X 2 (where X is Cl, Br, or NO 2 ), with intermediate stability levels [27].…”

Section: Introductionmentioning

confidence: 99%

The Effect of pH on the Electrodeposition of Pd Clusters onto Highly Ordered Pyrolytic Graphite—A Kinetic and Morphological Study

Bravo-Rodriguez,

Mendoza-Huizar,

Rivera

et al. 2024

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In this study, we carried out an electrochemical investigation of the palladium electrodeposition process at pH 5 and 8, evaluating the kinetic parameters related to its nucleation and growth processes on a Highly Oriented Pyrolytic Graphite (HOPG) electrode from a plating bath containing 1 mM of Pd and 1 M NH4Cl. The voltammetric study allowed us to identify the potential values at which palladium can be electrodeposited, along with the adsorption and desorption processes of hydrogen absorbed on the deposited Pd. Analysis of the peak currents of the deposited Pd indicated diffusional control at both pH values. The evaluation of kinetic parameters, such as the number of active nucleation sites (N0), the nucleation rate (A), and the rate constant of the proton reduction process (kPR), was determined via potentiostatic studies, revealing their dependence on the applied potential to the electrode. The number of active nucleation sites predicted by the nucleation model correlated well with the number of nuclei observed via Scanning Electron Microscopy (SEM). SEM images revealed that at pH 5, the Pd clusters had an average diameter of 27 nm and a height of 39 nm, while at pH 8, the clusters had an average diameter of 12.8 nm and a height of 16.6 nm. At pH 5, homogeneous and dispersed Pd clusters were obtained, while at pH 8, agglomeration of Pd clusters was observed.

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Electrocrystallization of palladium from Pd(NH3)4Cl2 bath on stainless steel 316L

Cited by 15 publications

References 43 publications

Kinetics and mechanism of palladium electrodeposition on graphite electrode by impedance and noise measurements

Kinetics and mechanism of palladium electrodeposition on graphite electrode by impedance and noise measurements

Electrodeposition of Bright Nickel from Liquid Ammonia Solution Containing Chloride

The Effect of pH on the Electrodeposition of Pd Clusters onto Highly Ordered Pyrolytic Graphite—A Kinetic and Morphological Study

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