期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 726, 期 -, 页码 1003-1013出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.08.052
关键词
Graphene oxide nanocomposites; MAPLE; Graphene oxide-silver electrode; Energy storage
资金
- Executive Unit for Financing Higher Education, Research, Development and Innovation of the Romanian Ministry of Education and Scientific Research [PN-III-P2-2.1-PED-2016-1043]
- Spanish Ministry of Economy, Industry and Competitiveness [ENE2014-56109-C3-1-R, ENE2014-56109-C3-3-R]
- Spanish Ministry of Economy and Competitiveness, through the Severo Ochoa Programme for Centres of Excellence in RD [SEV-2015-0496]
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.
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