A study of nickel electrodeposition on paraffin impregnated graphite electrode

STREČKOVÁ, Magdaléna, Renáta ORIŇÁKOVÁ, Roland ROZIK, Libuše TRNKOVÁ and Miriam GÁLOVÁ. A study of nickel electrodeposition on paraffin impregnated graphite electrode. Helvetica Chimica Acta. Zürich, Switzerland: Verlag Helvetica Chimica Acta AG, Zürich, 2006, vol. 89, No 4, p. 622-634. ISSN 0018-019X.

Basic information

• Original name: A study of nickel electrodeposition on paraffin impregnated graphite electrode
• Name in Czech: Studie elektrodepozice niklu na parafinem impregnované grafitové elektrodě
• Authors: STREČKOVÁ, Magdaléna (703 Slovakia), Renáta ORIŇÁKOVÁ (703 Slovakia), Roland ROZIK (703 Slovakia), Libuše TRNKOVÁ (203 Czech Republic, guarantor) and Miriam GÁLOVÁ (703 Slovakia).
• Edition: Helvetica Chimica Acta, Zürich, Switzerland, Verlag Helvetica Chimica Acta AG, Zürich, 2006, 0018-019X.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10405 Electrochemistry
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 1.550
• RIV identification code: RIV/00216224:14310/06:00016812
• Organization unit: Faculty of Science
• UT WoS: 000237243200004
• Keywords in English: Electrodeposition; Ni; paraffin impregnated graphite electrode; Watts bath; elimination voltammetry
• Tags: Electrodeposition, Elimination voltammetry, Ni, paraffin impregnated graphite electrode, Watts bath

Abstract

The aim of the present work was to elucidate the mechanism of electrolytic deposition of nickel on a paraffin impregnated graphite electrode (PIGE). On the basis of the results obtained by linear and cyclic voltammetry, the elimination voltammetry with linear scan (EVLS) was used for evaluation of investigated processes. The hydrogen evolution reaction (HER) alone was studied in sulphate supporting electrolyte, and the previously suggested mechanism for this process according to Volmer-Heyrovsky was confirmed by EVLS. It was found that Ni2+ concentration and pH affect the polarisation behaviour of PIGE very significantly. The EVLS confirmed the most probable mechanism of nickel deposition as being controlled by slow transfer of the first electron and the formation of NiOH+ as an intermediate particle. Moreover, the EVLS indicated slow reduction of proton preceding the reduction of nickel. The results were complemented by scanning electron microscopy (SEM).

Abstract (in Czech)

Cílem práce bylo objasnění mechanismu elektrolytické depozice niklu na parfinem impregnované grafitové elektrodě. Na základě výsledků získaných pomocí LSV, CV a eliminační voltametrie byl objasněn jak proces elektrodepozice niklu, tak proces vylučování vodíku.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)