In Situ Atomic Force Microscopy Imaging of Electroprecipitated Nickel Hydrous Oxide Films in Alkaline Electrolytes

Rong rong Chen, Yibo Mo, Daniel Alberto Scherson

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In situ atomic force microscopy images of nickel hydrous oxide films electrodeposited on the basal plane of highly oriented pyrolytic graphite in alkaline electrolytes have shown that a stepwise oxidation leads to irreversible formation of wide crevices throughout the material. Upon subsequent stepwise reduction, the gaps close leaving a hairline type crack which follows the profile of the crevice. These potential induced structural rearrangements have been attributed to stresses induced by differences in the densities of the nickel hydrous oxide in the two oxidation states.

Original languageEnglish
Pages (from-to)3933-3936
Number of pages4
JournalLangmuir
Volume10
Issue number11
DOIs
Publication statusPublished - 1994 Nov 1
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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