Graphene, a one-atomic-thick film of two-dimensional nanostructure, has piqued the attention of researchers due to its superior electrical conductivity, large surface area, good
The recent rapid growth in graphene-based supercapacitors has reached the point where there is a need for solid-state devices with physical flexibility, which will be a crucial advantage in modern electronic devices.
A lightweight, flexible, and highly efficient energy management strategy is needed for flexible energy-storage devices to meet a rapidly growing demand. Graphene-based flexible
Graphene is an atomically thin carbon film with a large theoretical surface area (2630 m2 g −1), high conductivity, and high chemical stability , showing great promising for
Ultimately, this review offers researchers an understanding and outlook on the application of 3D network graphene materials in supercapacitor energy storage and capacitive deionization.
We report a method that uses an inexpensive and abundant carbon feedstock, coal tar pitch (CTP), along with a potassium carbonate (K 2 CO 3) catalyst in a simple, tube-furnace based, process to make microscopic 3D
In this work, we developed a facile route to synthesize three-dimensional graphene/carbon nanotube (3DG/CNT) hybrids as electrodes for binder-free electrical double
One of the promising supercapacitors for next-generation energy storage is zinc-ion hybrid supercapacitors. For the anode materials of the hybrid supercapacitors, three
Recently, self-assembled three-dimensional (3D) graphene structures have been widely recognized as active electrode materials as it possesses striking features including
Thus, 3D graphene materials have been developed to resolve the restacking problem of graphene sheets and a high rate of performance in super capacitors was obtained.
Here, we report the fabrication of 3D periodic graphene composite aerogel microlattices for supercapacitor applications, via a 3D printing technique known as direct-ink writing.
A high performance three-dimensional electrode was developed by the deposition of very thin mesoporous NiCo 2 O 4 and graphene nanosheets on Ni foam for supercapacitors.
Exhibiting exceptional electrochemical performance, nitrogen-doped three-dimensional graphene/polyaniline (N-GE/PANI) composite foam materials maintained 95.9 %
This review describes how 3-dimensional porous graphene electrodes have been improved recently, from using large area processing techniques to microsupercapacitors.
The three-dimensional reduction of graphene oxide materials at 180 ℃ resulted in the best super capacitor performance, with a specific capacitance of 315 F·g -1 when the current density was 0.5 A·g -1 and 212 F·g -1 when the current
This article comprehensively highlights major breakthroughs in the past years on the synthesis, classification and mechanism of the three-dimensional structure of graphene-carbon
The three-dimensional reduction of graphene oxide materials at 180 resulted in the best super capacitor performance, with a specific capacitance of 315 F·g -1 when the current
Moreover, g-C 3 N 4 brings additional capacitance with the help of the high conductivity of graphene [34, 35, 36]. Such a graphene/g-C 3 N 4 composite is expected to be
We have demonstrated a three-dimensional composite structure of graphene and carbon nanotubes as electrodes for super-capacitors. The goal of this study is to fabricate and
Engineering three-dimensional hybrid supercapacitors and micro-supercapacitors for integrated energy storage Battery users would like energy storage devices that are compact, reliable, and energy dense, charge quickly, and possess both
Thus, to date researchers have turned to low-dimensional materials such as one-dimensional (1D) carbon nanotubes (CNTs) and two-dimensional (2D) graphene, to fabricate
Graphene sheets are immensely strong, lightweight and excellent at conducting electricity. Theoretically, macroscopical three-dimensional graphene assemblies should retain
(a-c) SEM images of the thermally expanded graphene layers intercalated with VACNTs for different pyrolysis times of 5, 10, and 30min, respectively, and (d) the VACNT pillar height as a function...
Graphene aerogels (GAs) exhibit exceptional potential in energy storage, particularly for high-capacity supercapacitors (SCs), owing to their unique three-dimensional (3D) porous structure,
Various nanocarbon-based materials including one-dimensional (1D) carbon nanotubes (CNTs) or graphitic nanofibers (GNFs), two- dimensional (2D) graphene nanosheets, and three-dimensional (3D
The graphene-based materials are promising for applications in supercapacitors and other energy storage devices due to the intriguing properties, i.e., highly tunable surface area,
Graphene nanomaterials are anticipated to enhance the specific energy-power of supercapacitors, providing a substitute to lithium-ion batteries. Herein, we investigate graphene-oxide sheet/carbon nanoparticle (GO-CNP)
A supercapacitor, also known as an electrochemical capacitor or ultracapacitor, is an energy storage device that offers high capacitance, high power density, and long cycling life. Its principle is based on the charge
Article Open access Published: 12 January 2018 High-performance flexible supercapacitors based on electrochemically tailored three-dimensional reduced graphene
Abstract We propose a facile and environmentally-friendly strategy for fabricating three-dimensional (3D) reduced graphene oxide (3D-rGO) porous structure with one step
In this work, the zinc-ion hybrid super-capacitor with high volumetric energy density and superb cycle stability had been constructed which employing the high-density three
Abstract We have demonstrated a three-dimensional composite structure of graphene and carbon nanotubes as electrodes for super-capacitors. The goal of this study is to fabricate and test the
Specifically, (a) the use of graphene foam to obtain large area electrodes, (b) the development of the direct laser writing technique for fast, one-step, and low-cost production of graphene-based supercapacitors, (c) their miniaturization in the
Among those materials, graphene (GN) has great potential to transfer a higher amount of charge at a fast rate and store more energy in electrical double-layer capacitor
The use of graphene-based materials for electrochemical double-layer capacitor (EDLCs) electrodes is reviewed. To establish a detailed understanding of the science and
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