Here we report the production and characterization of a low-cost supercapacitor with electrodes based on colloidal graphite. We characterized the as-prepared device in terms of cyclic voltammetry (CV), Galvanostatic ...

With the advances of nanotechnology, the increase in adepts to the use of small-scale devices is growing considerably and can be observed in products marketed with information that something was built on nanoscale, such ...

Este estudo faz um levantamento de pesquisas recentes relacionadas aos tipos de sistemas de armazenamento de energia que podem ser utilizados em microrredes. Em especial, os conjuntos híbridos formados pela associação de ...

Circuitos com supercapacitores e lâmpadas são abordados fazendo-se uso da luminosidade das lâmpadas como um indicador da corrente no circuito. Desta maneira, pode-se demonstrar visualmente que os capacitores podem armazenar ...

Realizou-se primeiramente neste trabalho o estudo de um supercapacitor padrão utilizando coletores de aço inox e eletrodos de grafite Aquadag®. Este dispositivo apresentou uma capacitância máxima de 22 F/g, e seu espectro ...

Here we describe a screen-printed supercapacitor produced onto filter paper using poly (3, 4-ethylene dioxythiophene)-poly (styrene sulfonate) (PEDOT:PSS)/multiwall carbon nanotube (MWCNT) composite as active materials. ...

Manganese dioxide was synthesized by a microwave-hydrothermal method using alternative, unprecedented and completely soluble reagents. For such, potassium permanganate and acetone were dissolved in different proportions ...

This thesis addresses the simulation of an Energy Recovery System (ERS) based on batteries and supercapacitors (SC) with application in an electric vehicle. The batteries are used as energy source and the supercapacitors ...

Composites of polythiophene (PT) and graphene (GR) with different mass proportions were studied for their application as supercapacitors. Fourier transform infrared spectroscopy (FTIR) along with High Resolution Scanning ...