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On the Transformation Mechanism of K2Ti4O9 to TiO2(B) and Formation of Microvoids

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Author

Summary, in English

TiO2(B), a potential catalyst support, has been synthesized from a support precursor, K2Ti4O9. High resolution electron microscopy revealed that the 32% volume loss in this transformation is achieved by formation of facetted microvoids, around 10 nm in size, maintaining the morphology and size of the original crystals. A structural mechanism, including a hypothetical structure for a K2Ti 2O5 intermediate, is suggested.

Publishing year

1990

Language

English

Pages

357-364

Publication/Series

Microscopy Microanalysis Microstructures

Volume

1

Issue

5-6

Document type

Journal article

Publisher

EDP Sciences

Topic

  • Production Engineering, Human Work Science and Ergonomics
  • Chemical Engineering
  • Chemical Sciences

Status

Published