Graphen-Hydrogel-Elektrochemischer Energiespeicher
Ein Großteil der aktuellen F&E-Projekte widmet sich der Integration elektrochemischer Energiespeicher, nur ein geringer Teil der Materialentwicklung und -verbesserung und ein verschwindend geringer Teil der Systemebene, dem Batteriemanagement und der Sicherheit von Energiespeichern.
Can graphene be used for electrochemical energy storage?
Graphene and its hybrids have been considered promising candidates for electrochemical energy storage because of their fascinating physicochemical properties. However, they suffer from unsatisfactory areal or volumetric energy density and relatively poor rate performance.
What is graphene used for?
Due to these properties, graphene has emerged as an attractive material for diverse applications, including electrochemical energy storage applications; for example, supercapacitors and batteries, catalysts, and hydrogen storage systems.
What is the charge storage mechanism of graphene?
The charged storage mechanisms are related to the number of graphene layers. For single-layer graphene, charging proceeds by the desorption of co-ion, whereas for few-layer graphene, co-ion/counter-ion exchange dominates.
Are graphene composites suitable for energy storage applications?
As capacity requirements in energy storage applications increase, graphene composites such as the embedment/encapsulation of nanostructured materials in graphene have been developed to meet these requirements.
Why is processing methodology of graphene important in hydrogen storage?
Processing methodology of graphene is an important factor in hydrogen storage as it depends on sheet edges, carbon vacancy induced defect sites, sheet wrinkles, larger available surface area and higher density of π -electrons in an out-of-plane configuration of graphene sheet.
Are graphene-based nanomaterials suitable for hydrogen storage?
Summary of state-of-the-art functionalized graphene-based nanomaterials for hydrogen storage. The synthetic versatility of graphene is critical for the development of high performance and environmentally friendly materials necessary for key energy and hydrogen storage technologies as the world moves away from non-renewable fuels.