location: Current position: Home >> Scientific Research >> Paper Publications

Effects of introduced electrolytes on galvanic deposition of ZnO films

Hits:

Indexed by:期刊论文

Date of Publication:2010-09-01

Journal:ELECTROCHIMICA ACTA

Included Journals:SCIE、EI

Volume:55

Issue:22

Page Number:6796-6801

ISSN No.:0013-4686

Key Words:Electrolyte; Galvanic deposition; ZnO; Zinc hydroxysulfate; Passivation

Abstract:The effects of supporting electrolytes on galvanic deposition of ZnO films have been investigated in detail by respectively introducing K2SO4. KNO3 and KCI into Zn(Ac)(2) electrolytes. It reveals that the chemical nature of introduced electrolytes plays important roles in acting on the growth of ZnO films. ZnO nanorods tend to grow in KNO3 and KCI electrolytes, while sheet-like zinc hydroxysulfate tends to be formed in K2SO4 electrolyte. Besides. KNO3 electrolyte is inclined to accelerate the passivation of Zn anode, resulting in the sharp decrease of driving force for galvanic deposition. In contrast, KCI and K2SO4 electrolytes facilitate zinc dissolution by anionic adsorption on the metal surface and subsequent participation in the active dissolution process, thus leading to the incorporation of anions in nanocrystals. (c) 2010 Elsevier Ltd. All rights reserved.

Pre One:Corrosion behavior of electroless deposited Ni-Cu-P coating in flue gas condensate.

Next One:阴离子对化学镀Ni-Cu-P合金耐蚀性的影响