Effect of Additives on Hydrogen Evolution and Absorption during Zn Electrodeposition Investigated by EQCM

Ki Deok Song, Kwang Bum Kim, Seong Ho Han, Hongkee Lee

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Hydrogen evolution and absorption during Zn electrodeposition from zinc sulfate electrolytes containing polyethylene glycol (PEG), gelatin, and thiourea (TU) was studied using an electrochemical quartz crystal microbalance (EQCM). The results obtained indicate that PEG and gelatin act as inhibitors of hydrogen absorption on the deposited Zn and that TU acts as an inhibitor of hydrogen evolution but yet promotes hydrogen absorption on the Zn deposits. Gelatin suppressed hydrogen reduction most effectively. EQCM proved to be a useful in situ tool for investigating the effects of hydrogen evolution and absorption on metal deposition and for distinguishing between the cathodic charge for Zn deposition and hydrogen reduction reaction.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume7
Issue number2
DOIs
Publication statusPublished - 2004 Apr 8

Fingerprint

Quartz crystal microbalances
quartz crystals
Electrodeposition
electrodeposition
microbalances
Hydrogen
hydrogen
gelatins
Gelatin
Thiourea
Thioureas
thioureas
inhibitors
Polyethylene glycols
glycols
polyethylenes
Zinc Sulfate
Electrolytes
sulfates
Zinc

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

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abstract = "Hydrogen evolution and absorption during Zn electrodeposition from zinc sulfate electrolytes containing polyethylene glycol (PEG), gelatin, and thiourea (TU) was studied using an electrochemical quartz crystal microbalance (EQCM). The results obtained indicate that PEG and gelatin act as inhibitors of hydrogen absorption on the deposited Zn and that TU acts as an inhibitor of hydrogen evolution but yet promotes hydrogen absorption on the Zn deposits. Gelatin suppressed hydrogen reduction most effectively. EQCM proved to be a useful in situ tool for investigating the effects of hydrogen evolution and absorption on metal deposition and for distinguishing between the cathodic charge for Zn deposition and hydrogen reduction reaction.",
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Effect of Additives on Hydrogen Evolution and Absorption during Zn Electrodeposition Investigated by EQCM. / Song, Ki Deok; Kim, Kwang Bum; Han, Seong Ho; Lee, Hongkee.

In: Electrochemical and Solid-State Letters, Vol. 7, No. 2, 08.04.2004.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of Additives on Hydrogen Evolution and Absorption during Zn Electrodeposition Investigated by EQCM

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