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Biomimetic synthesis of nanostructured WO3 · H2O particles and subsequent thermal conversion to WO3.

ABSTRACT: Nanostructured tungsten oxide (WO3) particles were prepared in aqueous solution by mimicking biomineralization. Precursor WO3 · H2O particles were generated by ageing a 60°C (NH4)10W12O41 · 5H2O solution containing gelatin. This was followed by heating to 600°C in air for thermal conversion to WO3. The addition of gelatin led to the formation of layered structures consisting of WO3 · H2O platy particles, which contained segmented, block-like nanoscale units. The macroscopic layered structure was preserved after thermal conversion to WO3, while the morphology of the block-like units changed to orthogonally crossed nanorods.

SUBMITTER: Uchiyama H

PROVIDER: S-EPMC6599771 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Biomimetic synthesis of nanostructured WO3 · H2O particles and subsequent thermal conversion to WO3.

Uchiyama Hiroaki H Mizuguchi Shouta S Hirano Shiho S

Royal Society open science 20190612 6

Nanostructured tungsten oxide (WO3) particles were prepared in aqueous solution by mimicking biomineralization. Precursor WO3 · H2O particles were generated by ageing a 60°C (NH4)10W12O41 · 5H2O solution containing gelatin. This was followed by heating to 600°C in air for thermal conversion to WO3. The addition of gelatin led to the formation of layered structures consisting of WO3 · H<s ...[more]

PMID: 31312479

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