Synthesis of heteropoly oxometalate/amphiphilic block copolymer composite thin films with self-ordered mesostructures

Hui suk Yun, Makoto Kuwabara, Haoshen Zhou, Itaru Honma

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A simple, reproducible, and versatile procedure for synthesizing mesostructured 12-phosphotungstic acid thin films with large spaced mesostructures (< 17 nm) using amphiphilic block copolymers as structure-directing agents is reported. The morphology of the mesostructure can be controlled by adjusting the m/n ratio of poly (ethylene oxide)1/2/poly (propylene oxide) (EO1/2/PO) in the tri-block copolymer (EO)m(PO)n(EO)m. This synthetic approach was adapted to prepare mesoscopically ordered heteropoly oxometalates (HPOMs) films, including 12-phosphomolybdic acid and 12-tungsto (IV) silicic acid. The electrochemical properties of the calcined HPOMs films as electrodes in Li-ion batteries were also investigated.

Original languageEnglish
Pages (from-to)2842-2846
Number of pages5
JournalThin Solid Films
Volume515
Issue number5
DOIs
Publication statusPublished - 2007 Jan 22
Externally publishedYes

Keywords

  • Block copolymer templates
  • Heteropoly oxometalates
  • Mesostructures
  • Thin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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