Alignment of Amorphous Iron Oxide Clusters : A Non-Classical Mechanism for Magnetite Formation

Sun, Shengtong; Gebauer, Denis; Cölfen, Helmut

Alignment of Amorphous Iron Oxide Clusters : A Non-Classical Mechanism for Magnetite Formation

Dateien

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Datum

2017

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Chemie
Zukunftskolleg

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Angewandte Chemie International Edition. 2017, 56(14), pp. 4042-4046. ISSN 1433-7851. eISSN 1433-7851. Available under: doi: 10.1002/anie.201610275

Zusammenfassung

Despite numerous studies on the nucleation and crystallization of iron (oxyhydr)oxides, the roles of species developing during the early stages, especially primary clusters and intermediate amorphous particles, are still poorly understood. Herein, both ligand-free and ligand-protected amorphous iron oxide (AIO) clusters (<2 nm) were synthesized as precursors for magnetite formation. Thermal annealing can crystallize the clusters into magnetite particles, and AIO bulk phases with domains of pre-aligned clusters are found to be direct precursors to crystals, suggesting a non-classical aggregation-based pathway that differs from the reported oriented attachment or particle accretion mechanisms.

Fachgebiet (DDC)

540 Chemie

Zitieren

ISO 690

SUN, Shengtong, Denis GEBAUER, Helmut CÖLFEN, 2017. Alignment of Amorphous Iron Oxide Clusters : A Non-Classical Mechanism for Magnetite Formation. In: Angewandte Chemie International Edition. 2017, 56(14), pp. 4042-4046. ISSN 1433-7851. eISSN 1433-7851. Available under: doi: 10.1002/anie.201610275

BibTex

@article{Sun2017-03-27Align-38798,
  year={2017},
  doi={10.1002/anie.201610275},
  title={Alignment of Amorphous Iron Oxide Clusters : A Non-Classical Mechanism for Magnetite Formation},
  number={14},
  volume={56},
  issn={1433-7851},
  journal={Angewandte Chemie International Edition},
  pages={4042--4046},
  author={Sun, Shengtong and Gebauer, Denis and Cölfen, Helmut}
}

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