Influence of boric acid on the electrochemical deposition of Ni

J 2005

Influence of boric acid on the electrochemical deposition of Ni

ŠUPICOVÁ, Magdalena, Roland ROZIK, Libuše TRNKOVÁ, Renáta ORIŇÁKOVÁ, Miriam GÁLOVÁ et. al.

Základní údaje

Originální název

Influence of boric acid on the electrochemical deposition of Ni

Název česky

Vliv kyseliny borité na elektrochemickou depozici niklu

Autoři

ŠUPICOVÁ, Magdalena (703 Slovensko), Roland ROZIK (703 Slovensko), Libuše TRNKOVÁ (203 Česká republika, garant), Renáta ORIŇÁKOVÁ (703 Slovensko) a Miriam GÁLOVÁ (703 Slovensko)

Vydání

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2005, 1432-8488

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10405 Electrochemistry

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.158

Kód RIV

RIV/00216224:14310/05:00014662

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000233466400001

Klíčová slova anglicky

Ni electrodeposition; chloride supporting electrolyte; graphite electrode; boric acid; elimination voltammetry

Štítky

boric acid, chloride supporting electrolyte, Elimination voltammetry, Graphite electrode, Ni electrodeposition

Změněno: 22. 2. 2006 10:41, Mgr. Roland Rozik, Ph.D.

Anotace

ORIG CZ

V originále

The electrolytic deposition of Ni onto a paraffin-impregnated graphite electrode from supporting chloride electrolyte (0.5 mol dm(-3) NaCl) adjusted to the required pH using dilute HCl is investigated. The effect of electrolyte composition on the Ni electrodeposition is studied using linear sweep voltammetry in the cathodic region. An elimination voltammetry procedure was applied to evaluate the polarization curves. The aim of this work was to deduce the mechanism of Ni reduction in the chloride bath as well as the influence of boric acid on this. Positively-charged NiCl+ ions were found to be the electroactive particles in the Ni reduction mechanism. The strong competition between the NiCl+, Cl- and H+ ions for active sites at the electrode is discussed. Kinetically-controlled adsorption/desorption processes of various species were also confirmed using elimination voltammetry with a linear scan. The evolution of gaseous hydrogen, catalyzed by the freshly-deposited Ni, accompanies the electrodeposition process. The presence of boric acid at a sufficiently high concentration inhibits the deposition of Ni and, at the same time, improves the morphology and brightness, as well as the adhesion of the deposited Ni. Elimination voltammetry with a linear scan is an efficient way to evaluate current-potential curves that reflect the electrodeposition of one-component Ni coatings. By eliminating selected currents, additional interesting and useful information can be obtained from voltammetric data.

Česky

Elektrolytická depozice niklu na parafinem impregnované grafitové elektrodě.....

Návaznosti

MSM0021622412, záměr

Název: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Akronym: INCHEMBIOL)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální , regionální a lokální úrovni

Citovat

ŠUPICOVÁ, Magdalena, Roland ROZIK, Libuše TRNKOVÁ, Renáta ORIŇÁKOVÁ a Miriam GÁLOVÁ. Influence of boric acid on the electrochemical deposition of Ni. JOURNAL OF SOLID STATE ELECTROCHEMISTRY. 2005, roč. 10, č. 2, s. 61-68. ISSN 1432-8488.

@article{618870,
   author = {Šupicová, Magdalena and Rozik, Roland and Trnková, Libuše and Oriňáková, Renáta and Gálová, Miriam},
   article_number = {2},
   keywords = {Ni electrodeposition; chloride supporting electrolyte; graphite electrode; boric acid; elimination voltammetry},
   language = {eng},
   issn = {1432-8488},
   journal = {JOURNAL OF SOLID STATE ELECTROCHEMISTRY},
   title = {Influence of boric acid on the electrochemical deposition of Ni},
   volume = {10},
   year = {2005}
}

TY  - JOUR
ID  - 618870
AU  - Šupicová, Magdalena - Rozik, Roland - Trnková, Libuše - Oriňáková, Renáta - Gálová, Miriam
PY  - 2005
TI  - Influence of boric acid on the electrochemical deposition of Ni
JF  - JOURNAL OF SOLID STATE ELECTROCHEMISTRY
VL  - 10
IS  - 2
SP  - 61-68
EP  - 61-68
SN  - 14328488
KW  - Ni electrodeposition
KW  - chloride supporting electrolyte
KW  - graphite electrode
KW  - boric acid
KW  - elimination voltammetry
N2  - The electrolytic deposition of Ni onto a paraffin-impregnated graphite electrode from supporting chloride electrolyte (0.5 mol dm(-3) NaCl) adjusted to the required pH using dilute HCl is investigated. The effect of electrolyte composition on the Ni electrodeposition is studied using linear sweep voltammetry in the cathodic region. An elimination voltammetry procedure was applied to evaluate the polarization curves. The aim of this work was to deduce the mechanism of Ni reduction in the chloride bath as well as the influence of boric acid on this. Positively-charged NiCl+ ions were found to be the electroactive particles in the Ni reduction mechanism. The strong competition between the NiCl+, Cl- and H+ ions for active sites at the electrode is discussed. Kinetically-controlled adsorption/desorption processes of various species were also confirmed using elimination voltammetry with a linear scan. The evolution of gaseous hydrogen, catalyzed by the freshly-deposited Ni, accompanies the electrodeposition process. The presence of boric acid at a sufficiently high concentration inhibits the deposition of Ni and, at the same time, improves the morphology and brightness, as well as the adhesion of the deposited Ni. Elimination voltammetry with a linear scan is an efficient way to evaluate current-potential curves that reflect the electrodeposition of one-component Ni coatings. By eliminating selected currents, additional interesting and useful information can be obtained from voltammetric data.
ER  -

ŠUPICOVÁ, Magdalena, Roland ROZIK, Libuše TRNKOVÁ, Renáta ORIŇÁKOVÁ a Miriam GÁLOVÁ. Influence of boric acid on the electrochemical deposition of Ni. \textit{JOURNAL OF SOLID STATE ELECTROCHEMISTRY}. 2005, roč.~10, č.~2, s.~61-68. ISSN~1432-8488.

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