Biomimetic synthesis of nanostructured WO(3) · H(2)O particles and subsequent thermal conversion to WO(3)

Nanostructured tungsten oxide (WO(3)) particles were prepared in aqueous solution by mimicking biomineralization. Precursor WO(3) · H(2)O particles were generated by ageing a 60°C (NH(4))(10)W(12)O(41) · 5H(2)O solution containing gelatin. This was followed by heating to 600°C in air for thermal con...

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Detalles Bibliográficos
Autores principales: Uchiyama, Hiroaki, Mizuguchi, Shouta, Hirano, Shiho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6599771/
https://www.ncbi.nlm.nih.gov/pubmed/31312479
http://dx.doi.org/10.1098/rsos.182137
Descripción
Sumario:Nanostructured tungsten oxide (WO(3)) particles were prepared in aqueous solution by mimicking biomineralization. Precursor WO(3) · H(2)O particles were generated by ageing a 60°C (NH(4))(10)W(12)O(41) · 5H(2)O solution containing gelatin. This was followed by heating to 600°C in air for thermal conversion to WO(3). The addition of gelatin led to the formation of layered structures consisting of WO(3) · H(2)O platy particles, which contained segmented, block-like nanoscale units. The macroscopic layered structure was preserved after thermal conversion to WO(3), while the morphology of the block-like units changed to orthogonally crossed nanorods.

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