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Polymers 2017, 9(1), 17; doi:10.3390/polym9010017

Electrodeposition of Mn-Co/Polypyrrole Nanocomposites: An Electrochemical and In Situ Soft-X-ray Microspectroscopic Investigation

1
Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via Monteroni, 73100 Lecce, Italy
2
Elettra-Sincrotrone Trieste S.C.p.A. strada statale 14 km 163.5 in Area Science Park, Basovizza, 34012 Trieste, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Walter Remo Caseri
Received: 11 November 2016 / Revised: 20 December 2016 / Accepted: 23 December 2016 / Published: 6 January 2017
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Particles 2016)
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Abstract

Understanding the lateral variations in the elemental and chemical state of constituents induced by electrochemical reactions at nanoscales is crucial for the advancement of electrochemical materials science. This requires in situ studies to provide observables that contribute to both modeling beyond the phenomenological level and exactly transducing the functionally relevant quantities. A range of X-ray coherent diffraction imaging (CDI) approaches have recently been proposed for imaging beyond the diffraction limit with potentially dramatic improvements in time resolution with chemical sensitivity. In this paper, we report a selection of ptychography results obtained in situ during the electrodeposition of a metal–polymer nanocomposite. Our selection includes dynamic imaging during electrochemically driven growth complemented with absorption and phase spectroscopy with high lateral resolution. We demonstrate the onset of morphological instability feature formation and correlate the chemical state of Mn with the local growth rate controlled by the current density distribution resulting from morphological evolution. View Full-Text
Keywords: manganese oxide; polypyrrole; nanocomposites; electrodeposition; coherent diffractive imaging; ptychography manganese oxide; polypyrrole; nanocomposites; electrodeposition; coherent diffractive imaging; ptychography
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Bozzini, B.; Bocchetta, P.; Kourousias, G.; Gianoncelli, A. Electrodeposition of Mn-Co/Polypyrrole Nanocomposites: An Electrochemical and In Situ Soft-X-ray Microspectroscopic Investigation. Polymers 2017, 9, 17.

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