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Tracking the formation of nano-sized zinc oxide from zinc peroxide by in situ XAS and XRD

Daley, T., Raj, E., Ramos, Silvia, Cibin, G., Dent, A., Hyde, T.I., Sankar, G. (2013) Tracking the formation of nano-sized zinc oxide from zinc peroxide by in situ XAS and XRD. Journal of Physics: Conference Series - Sensors and their Applications XIII, 430 (1). 012080. ISSN 1742-6588. (doi:10.1088/1742-6596/430/1/012080) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1088/1742-6596/430/1/012080

Abstract

In this paper we show how the formation of zinc oxide from zinc peroxide takes place during thermal decomposition, through a combination of X-ray Absorption Spectroscopy (XAS) and X-ray Diffraction (XRD). The time-resolved study allowed us to follow the changes in both the local structure of the material, in particular the conversion of octahedral Zn-O coordination to tetrahedral one through EXAFS and XANES analysis and at the same time the particle growth using both EXAFS and diffraction. Multi-cluster analysis provided information on the phase changes which could be cross-correlated with diffraction results which suggests an abrupt change in the long range coordination followed by a slow growth of zinc oxide NPs. This study allowed us to gain a detailed understanding of zinc peroxide decomposition leading to the formation of zinc oxide.

Item Type: Article
DOI/Identification number: 10.1088/1742-6596/430/1/012080
Uncontrolled keywords: Physics of Quantum Materials, In-situ XAS, Local structure, Nanosized zinc oxide, Particle growth, Peroxide decomposition, Phase Change, Time resolved studies, XANES analysis, Cluster analysis, Decomposition, Oxidation, Peroxides, X ray absorption spectroscopy, X ray diffraction, Zinc, Zinc oxide
Subjects: Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Silvia Ramos
Date Deposited: 28 Apr 2015 10:28 UTC
Last Modified: 17 Jul 2019 09:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46981 (The current URI for this page, for reference purposes)
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