Preparation and study of morphology of mesoporous anodic films grown on tin foil

T. A. Vasilieva, N. F. Uvarov, B. B. Bokhonov

Research output: Contribution to journalConference articlepeer-review

Abstract

Mesoporous anodic layers were obtained on high-purity tin foils in electrolyte of two types: 0.3 M oxalic acid and 1 M NaOH in various anodizing modes. It was demonstrated that in both cases at low voltages below 4 V barrier films form. In acidic electrolyte the formation of tin (II) oxalate was observed whereas in basic electrolytes SnO2·nH2O seems to be formed. At intermediate voltage values from 4 to 8 V mesoporous films may be obtained with average size of pores of 20-40 nm, mesopores are rather uniformly distributed along the surface. It was found that in contrast to alumina anode films no linear dependency between pore diameter and voltage was observed at anodizing of tin foil. At voltages above 8 V and/or long-term anodization the film cracks and the film split to separate islands.

Original languageEnglish
Pages (from-to)401-404
Number of pages4
JournalMaterials Today: Proceedings
Volume25
DOIs
Publication statusPublished - 1 Oct 2019
Event3rd All-Russian Conference, with International Participation Hot Topics of Solid State Chemistry : From New Ideas to New Materials, HTSSC 2019 - Novosibirsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Keywords

  • Anodic films
  • Anodizing of tin
  • Barrier layer tin(II) oxalate
  • Effect of voltage
  • Mesoporous layer on the tin surface
  • OXIDATION
  • ANODIZATION
  • OXIDE LAYERS
  • SNO2

Fingerprint

Dive into the research topics of 'Preparation and study of morphology of mesoporous anodic films grown on tin foil'. Together they form a unique fingerprint.

Cite this