Partial FeO–Fe 3 O 4  Phase Transition Along the  Direction of the Cubic Crystalline Structure in Iron Oxide Nanocrystals | Zendy

TestaAnta Martín | Zendy; RodríguezGonzález Benito | Zendy; Salgueiriño Verónica | Zendy

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Partial FeO–Fe 3 O 4 Phase Transition Along the <111> Direction of the Cubic Crystalline Structure in Iron Oxide Nanocrystals

Author(s) -

TestaAnta Martín,

RodríguezGonzález Benito,

Salgueiriño Verónica

Publication year - 2019

Publication title -

particle and particle systems characterization

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.877

H-Index - 56

eISSN - 1521-4117

pISSN - 0934-0866

DOI - 10.1002/ppsc.201900283

Subject(s) - nanocrystal , crystallography , phase (matter) , oxide , phase transition , monomer , materials science , iron oxide , deposition (geology) , chemistry , nanotechnology , metallurgy , organic chemistry , polymer , geology , condensed matter physics , paleontology , physics , sediment , composite material

The iron oxide nanocrystals described herein stem from a ketonic decarboxylation reaction which fosters the delivery of –FeO– as an intermedium product. This intermedium product working as a monomer nucleates into FeO seeds which grow to attain a cubic shape with tips. This kinetically‐controlled second stage of growth favors the deposition of –FeO– at the apexes and promotes a partial topochemical FeO to Fe 3 O 4 phase transition mainly along the elongated <111> direction of the cubic crystalline structure.

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