Electrodeposition of zinc hydroxysulfate nanosheets and reduction to zinc metal microdendrites on polypyrrole films

Enrico Andreoli, Denise A. Rooney, Wynette Redington, Robert Gunning, Carmel B. Breslin

Research output: Contribution to journalArticlepeer-review

Abstract

Nanothin sheets made of zinc sulfate hydroxide hydrate, ZnSO 4[Zn(OH) 2] 3·5H 2O, are easily and quickly prepared using an innovative electrochemical route onto polypyrrole-polystyrene sulfonate (PPy-PSS) films. The sheets are characterized using a range of experimental techniques. The deposits are formed on the film surface with instantaneous nucleation to grow into a network of entangled nanosheets. The effect of the experimental conditions on the deposition is reported. Interestingly, the formation of the nanosheets is observed on PPy-PSS films only, and not on films doped with other sulfate/sulfonate dopants. The zinc nanosheets can be easily electrochemically reduced to metallic zinc microdentrites.

Original languageEnglish
Pages (from-to)338-349
Number of pages12
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number1
DOIs
Publication statusPublished - 2012

Keywords

  • Dendrite
  • Electrodeposition
  • Nanosheet
  • Polypyrrole
  • Zinc

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