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

Hiroaki Uchiyama | Zendy; Shouta Mizuguchi | Zendy; Shiho Hirano | Zendy

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

Author(s) -

Hiroaki Uchiyama,

Shouta Mizuguchi,

Shiho Hirano

Publication year - 2019

Publication title -

royal society open science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 51

ISSN - 2054-5703

DOI - 10.1098/rsos.182137

Subject(s) - materials science , nanorod , tungsten , chemical engineering , aqueous solution , gelatin , nanoscopic scale , morphology (biology) , oxide , thermal , nanotechnology , nanostructure , block (permutation group theory) , metallurgy , chemistry , organic chemistry , physics , geometry , mathematics , biology , meteorology , engineering , genetics

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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