Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour
authors Okhay, O; Tkach, A
nationality International
journal NANOMATERIALS
author keywords energy storage; multifunctional materials; composites; graphene; nanostructures
keywords ENERGY-STORAGE; SUPERCAPACITIVE PERFORMANCE; ELECTROCHEMICAL CAPACITANCE; DOUBLE-LAYER; AEROGEL; NETWORKS; FILM; NANOCOMPOSITES; CONDUCTIVITY; NANOSHEETS
abstract Thanks to the advanced technologies for energy generation such as solar cells and thermo- or piezo-generators the amount of electricity transformed from light, heat or mechanical pressure sources can be significantly enhanced. However, there is still a demand for effective storage devices to conserve electrical energy which addresses the wide range of large stationary applications from electric vehicles to small portable devices. Among the large variety of energy-storage systems available today, electrochemical energy sources and, in particular, supercapacitors (SC), are rather promising in terms of cost, scaling, power management, life cycle and safety. Therefore, this review surveys recent achievements in the development of SC based on composites of such carbon-derived materials as graphene (G) and reduced graphene oxide (rGO) with carbon nanotubes (CNT). Various factors influencing the specific capacitance are discussed, while specific energy and power as well as cycling stability of SC with G/rGO-CNT composite electrode materials are overviewed.
publisher MDPI
isbn 2079-4991
year published 2021
volume 11
issue 5
digital object identifier (doi) 10.3390/nano11051240
web of science category 30
subject category Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
unique article identifier WOS:000657016300001
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journal analysis (jcr 2019):
journal impact factor 4.324
5 year journal impact factor 4.514
category normalized journal impact factor percentile 65.762
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