4.8 Article

In Situ Total X-Ray Scattering Study of WO3 Nanoparticle Formation under Hydrothermal Conditions

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 14, Pages 3667-3670

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201311254

Keywords

hydrothermal synthesis; nanoparticles; pair distribution functions; powder X-ray diffraction; tungsten

Funding

  1. Danish National Research Foundation [DNRF93]
  2. Danish Research Council for Nature and Universe (Danscatt)

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Pair distribution function analysis of in situ total scattering data recorded during formation of WO3 nanocrystals under hydrothermal conditions reveal that a complex precursor structure exists in solution. The WO6 polyhedra of the precursor cluster undergo reorientation before forming the nanocrystal. This reorientation is the critical element in the formation of different hexagonal polymporphs of WO3.

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