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Mechanisms and Kinetics of Electrochemical Intercalation of Oxygen into Nd2NiO4+δ

Published online by Cambridge University Press:  15 February 2011

H. Fritze ,
H. L. Tuller ,
J. Berthold  and
B. Schultrich
H. Fritze
Affiliation:
Massachusetts Institute of Technology, Department of Material Science & Engineering, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, [email protected]
H. L. Tuller
Affiliation:
Massachusetts Institute of Technology, Department of Material Science & Engineering, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
J. Berthold
Affiliation:
Fraunhofer-Institut für Werkstoffphysik und Strahltechnologie, Winterbergstraße 28, 01277 Dresden, Germany
B. Schultrich
Affiliation:
Fraunhofer-Institut für Werkstoffphysik und Strahltechnologie, Winterbergstraße 28, 01277 Dresden, Germany
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Abstract

Overstoichiometric insertion of oxygen into thin films of Nd2NiO4+δwas performed electrochemically at room temperature (RT) in order to obtain an in-situ compositional analysis of the process. Thin Nd2NiO4+δlayers were deposited onto resonators of a Quartz Crystal Microbalance (QCM) by Pulsed Laser Deposition (PLD). Cyclic voltammograms showed oxidation and reduction peaks typical for these oxides. The change in oxygen stoichiometry was determined by in-situ QCM measurements during potential step experiments. The resulting maximum mass change was on the order of 50 ng and corresponded to a maximum excess oxygen content of δ = 0.12 in Nd2NiO4+δ. The time dependence of the mass change was described by a transport model which leads to oxygen diffusion coefficients in the range from 2.10−12 to 10−11 cm2/s depending on δ and the direction of the reaction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 548: Symposia EE – Solid State Ionics V , 1998 , 575
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

1. Grenier, J.-C., Pouchard, M. and, Wattiaux, A., Electrochemical Synthesis: Oxygen Intercalation, Curr. Opin. Solid State Mat. Sci 1(2), pp. 233–240 (1996).Google Scholar
2. Bhavaraju, S., DiCarlo, J. F., Scarfe, D. P., Yazdi, I. and Jacobson, A. J., Electrochemical Intercalation of Oxygen in Nd2NiO4+x (0≤ x ≤ 0.18) at 298 K, Chem. Mater. 6, pp. 2172–2176 (1994).Google Scholar
3. Grenier, J.C., Wattiaux, A., Demourges, A., Pouchard, M. and, Hagenmuller, P., Electrochemical Oxidation: A New Way for Preparing High Oxidation States of Transition Metals, Solid State Ionics 63–65, pp. 825–832 (1993).Google Scholar
4. Bard, A. J. and Faulkner, L. R., Electrochemical Methods, John Wiley & Sons, New York, 1980, pp. 213–221.Google Scholar
5. Bhavaraju, S., DiCarlo, J. F., Scarfe, D. P., Yazdi, I. and Jacobson, A. J., Electrochemical Intercalation of Oxygen in Lanthanum Copper Oxide at Ambient Temperature, Mater. Res. Bull. 29(7), pp. 735–742 (1994).Google Scholar