A Reversible Solid-State Crystalline Transformation in a Metal Phosphide Induced by Redox Chemistry-Reference-Cited by-同舟云学术

A Reversible Solid-State Crystalline Transformation in a Metal Phosphide Induced by Redox Chemistry

Published:2002-06-14 Issue:5575 Volume:296 Page:2012-2015
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Souza D. C. S.¹,Pralong V.¹,Jacobson A. J.²,Nazar L. F.¹

Affiliation:

1. Department of Chemistry and the Waterloo Centre for Materials Research, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

2. Department of Chemistry, University of Houston, Houston, TX 77204, USA.

Abstract

We demonstrate low-potential intercalation of lithium in a solid-state metal phosphide. A topotactic first-order transition between different but related crystal structures at room temperature takes place by an electrochemical redox process: MnP 4 ↔ Li 7 MnP 4 . The P-P bonds in the MnP 4 structure are cleaved at the time of Li insertion (reduction) to produce crystalline Li 7 MnP 4 and are reformed after reoxidation to MnP 4 , thereby acting as an electron storage reservoir. This is an unusual example of facile covalent bond breaking within the crystalline solid state that can be reversed by the input of electrochemical energy.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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