A metallic room-temperature oxide ion conductor

Heise M, Rasche B, Isaeva A, Baranov AI, Ruck M, Schaefer K, Poettgen R, Eufinger JP, Janek J (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 53

Pages Range: 7344-7348

Journal Issue: 28

DOI: 10.1002/anie.201402244

Abstract

Nanoparticles of Bi3Ir, obtained from a microwave-assisted polyol process, activate molecular oxygen from air at room temperature and reversibly intercalate it as oxide ions. The closely related structures of Bi3Ir and Bi3IrOx (x≤2) were investigated by X-ray diffraction, electron microscopy, and quantum-chemical modeling. In the topochemically formed metallic suboxide, the intermetallic building units are fully preserved. Time- and temperature-dependent monitoring of the oxygen uptake in an oxygen-filled chamber shows that the activation energy for oxide diffusion (84meV) is one order of magnitude smaller than that in any known material. Bi3IrOx is the first metallic oxide ion conductor and also the first that operates at room temperature. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Westfälische Wilhelms-Universität (WWU) Münster DE Germany (DE) Justus-Liebig-Universität Gießen DE Germany (DE)

How to cite

APA:

Heise, M., Rasche, B., Isaeva, A., Baranov, A.I., Ruck, M., Schaefer, K.,... Janek, J. (2014). A metallic room-temperature oxide ion conductor. Angewandte Chemie International Edition, 53(28), 7344-7348. https://doi.org/10.1002/anie.201402244

MLA:

Heise, Martin, et al. "A metallic room-temperature oxide ion conductor." Angewandte Chemie International Edition 53.28 (2014): 7344-7348.

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