Synthesis and electrochemical properties of mesostructured 12-phosphotungstic acid thin films with hierarchical structures by triblock copolymer templating

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

Research output: Contribution to journalConference article

Abstract

Hexagonally mesostructured 12-phosphotungstic acid (PWA) thin films with both large pore size and hierarchical structures have been successfully prepared by using triblock copolymer templates for the first time. The films is composed by three kind of structures; PWA Keggin anion, monoclinic crystal structure consisting of PWA Keggin anion and organic part (hydrophilic component) of block copolymers, and the hexagonal mesostructure of self-arrayed PWA and block copolymers. The calcined PWA films show better electrochemical properties such as a faster faradic processes and larger specific capacity than normal PWA clusters.

Original languageEnglish
Pages (from-to)377-382
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume788
Publication statusPublished - 2003
Externally publishedYes
EventContinuous Nanophase and Nanostructured Materials - Boston, MA., United States
Duration: 2003 Dec 12003 Dec 5

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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