Universität zu Köln

Queralto, Albert ORCID: 0000-0001-9101-0033, Perez del Pino, Angel, Logofatu, Constantin ORCID: 0000-0002-2275-1708, Datcu, Angela, Amade, Roger ORCID: 0000-0002-0875-905X, Alshaikh, I., Bertran, Enric ORCID: 0000-0002-9694-3729, Urzica, Iuliana and Gyorgy, Eniko (2017). MAPLE synthesis of reduced graphene oxide/silver nanocomposite electrodes: Influence of target composition and gas ambience. J. Alloy. Compd., 726. S. 1003 - 1014. LAUSANNE: ELSEVIER SCIENCE SA. ISSN 1873-4669

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Abstract

Graphene oxide (GO) and reduced GO films with different amounts of silver nanoparticles (Ag NPs) have been deposited on quartz and silicon substrates by matrix assisted pulsed laser evaporation (MAPLE). The morphology, structure, chemical composition, and optical and electrochemical properties were evaluated by scanning electron microscopy, X-ray photoelectron spectroscopy, ultravioletevisible spectrophotometry, and cyclic voltammetry measurements. The properties of the films obtained with two types of GO precursors have been compared. A reduction of the amount of oxygen containing groups is observed with the increase of the Ag concentration, which leads to a decrease of the optical band gap. Moreover, the deposition in nitrogen gas ambience leads to the N-doping of rGO material. The films obtained with the highest amount of Ag and with nitrogen doping show potential to be used in energy storage electrodes. (C) 2017 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Queralto, Albert UNSPECIFIED orcid.org/0000-0001-9101-0033 UNSPECIFIED Perez del Pino, Angel UNSPECIFIED UNSPECIFIED UNSPECIFIED Logofatu, Constantin UNSPECIFIED orcid.org/0000-0002-2275-1708 UNSPECIFIED Datcu, Angela UNSPECIFIED UNSPECIFIED UNSPECIFIED Amade, Roger UNSPECIFIED orcid.org/0000-0002-0875-905X UNSPECIFIED Alshaikh, I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bertran, Enric UNSPECIFIED orcid.org/0000-0002-9694-3729 UNSPECIFIED Urzica, Iuliana UNSPECIFIED UNSPECIFIED UNSPECIFIED Gyorgy, Eniko UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-208178
DOI:	10.1016/j.jallcom.2017.08.052
Journal or Publication Title:	J. Alloy. Compd.
Volume:	726
Page Range:	S. 1003 - 1014
Date:	2017
Publisher:	ELSEVIER SCIENCE SA
Place of Publication:	LAUSANNE
ISSN:	1873-4669
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PULSED-LASER EVAPORATION; NITROGEN-DOPED GRAPHENE; ENHANCED PHOTOCATALYTIC ACTIVITY; OXIDE/GRAPHENE OXIDE COMPOSITES; RAY PHOTOELECTRON-SPECTROSCOPY; OXYGEN REDUCTION REACTION; SILVER NANOPARTICLES; CHEMICAL-REDUCTION; THIN-FILMS; GRAPHITE OXIDE Multiple languages Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20817