ON THE POSSIBILITY OF AN INSULATOR-METAL TRANSITION IN ALKALI METAL-DOPED ZEOLITES

P P EDWARDS, L J WOODALL, P A ANDERSON, A R ARMSTRONG, M SLASKI

Research output: Contribution to journalArticlepeer-review

Abstract

The authors briefly review the geometric and electronic structure of new solids formed by 'dissolving' alkali metals in zeolites. Here the incoming alkali atoms readily give up their ns valence electron to the solid in return for a framework coordination site for the resulting cation. The authors argue that the metal doping of zeolites is reminiscent of the situation in metal-ammonia solutions and doped semiconductors (e.g. P in Si). The possibility exists that, at some critical stage of alkali metal loading, a 'matrix-bound' Insulator-to-Metal Transition occurs within the zeolite host. ESR, NMR, and magnetic susceptibility measurements provide important information on the electronic properties of these remarkable materials.

Original languageEnglish
Pages (from-to)305-312
Number of pages8
JournalChemical Society Reviews
Volume22
Issue number5
Publication statusPublished - Oct 1993

Keywords

  • NA-4(3+) CLUSTERS
  • SODALITE

Fingerprint

Dive into the research topics of 'ON THE POSSIBILITY OF AN INSULATOR-METAL TRANSITION IN ALKALI METAL-DOPED ZEOLITES'. Together they form a unique fingerprint.

Cite this