Effect of pore size and salt doping on the protonic conductivity of mesoporous alumina

Hangyan Shen, Hideki Maekawa, Junichi Kawamura, Yoshio Matsumoto, Tsutomu Yamamura, Yukinobu Kawakita, Kaoru Shibata, Masayoshi Kawai

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

In this work, water diffusion in mesoporous alumina was investigated by quasi-elastic neutron scattering (QENS). The dependence of diffusion constant (Dt) of sample upon pore size was observed. On the other hand, conductivities of samples with doping different inorganic salts were investigated. The conductivity increased significantly about 10 to 15 times by doping chloride. The chemical stability of chloride-doped mesoporous Al2O3 was evaluated.

Original languageEnglish
Pages (from-to)1133-1137
Number of pages5
JournalSolid State Ionics
Volume179
Issue number21-26
DOIs
Publication statusPublished - 2008 Sep 15

Keywords

  • Inorganic salts doping
  • Mesoporous alumina
  • Protonic conductivity
  • Quasi-elastic neutron scattering

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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