Preparation of superconductive P3 cobalt oxyhydrates Nax(H2O)yCoO2 with three-layered CoO2 using NaMnO4 solution

Ankam Bhaskar, Der Hau Lee, Chia-Jyi Liu

Research output: Contribution to journalArticle

Abstract

We report the synthesis of the superconductive P3 cobalt oxyhydrates by immersing α-NaCoO2 in aqueous NaMnO4 solution for the first time. It is a novel route to form the superconductive phase of cobalt oxyhydrates without resort to the commonly used Br2/CH3CN solution. Topotactic transformation of the parent compound α-NaCoO2 results in water intercalation and hence a significant expansion of the c-axis in the unit cell. The P3 cobalt oxyhydrates exhibits an onset superconducting transition at about 4.2 K.

Original languageEnglish
Pages (from-to)15-17
Number of pages3
JournalJournal of Electroceramics
Volume37
Issue number1-4
DOIs
Publication statusPublished - 2016 Dec 1

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Cobalt
cobalt
preparation
Intercalation
intercalation
routes
aqueous solutions
expansion
Water
synthesis
cells
water
NaCoO2

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

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abstract = "We report the synthesis of the superconductive P3 cobalt oxyhydrates by immersing α-NaCoO2 in aqueous NaMnO4 solution for the first time. It is a novel route to form the superconductive phase of cobalt oxyhydrates without resort to the commonly used Br2/CH3CN solution. Topotactic transformation of the parent compound α-NaCoO2 results in water intercalation and hence a significant expansion of the c-axis in the unit cell. The P3 cobalt oxyhydrates exhibits an onset superconducting transition at about 4.2 K.",
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Preparation of superconductive P3 cobalt oxyhydrates Nax(H2O)yCoO2 with three-layered CoO2 using NaMnO4 solution. / Bhaskar, Ankam; Lee, Der Hau; Liu, Chia-Jyi.

In: Journal of Electroceramics, Vol. 37, No. 1-4, 01.12.2016, p. 15-17.

Research output: Contribution to journalArticle

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