The exploration of graphene and carbon nanotube hybrids for energy storage applications has yielded significant insights into their potential. Integrating these materials into three-dimensional structures holds promise for increasing their energy storage applications in devices such as supercapacitors and batteries.
Two-dimensional (2D) materials are attracting increased research interest due to their unique physical properties and potential for application in various electronic devices. Herein, the combination of 2D materials …
Herein, a graphene and carbon nanotube wrapped Cobalt derivatives (Gr-CNT@Co) electrode material is prepared by annealing the complex of ZIF-67 and graphene oxide. The as-prepared Gr-CNT@ Co shows an interconnected porous structure, a high specific surface (253.9 m 2 g −1 ), and a high specific capacitance of 1108F g −1 …
Three-dimensional nanoporous graphene-carbon nanotube hybrid frameworks for confinement of SnS 2 nanosheets: Flexible and binder-free papers with …
lattice, graphene is well-known for its high specific cap-acitance as energy storage applications [7, 8]. However, large area preparation of high quality graphene films as energy storage applications are still in challenges [9, 10]. As for preparation methods
Carbon-based metal-free electrocatalysts have been recognized as proper alternatives for the replacement of frequently used Pt in these devices. Carbon nanotubes-graphene (CNTs-G) hybrids are three-dimensional (3D) carbonaceous structures that have attracted researchers'' interest in the last decade.
Carbon nanotubes (CNTs) are considered as one of the ideal materials due to their high surface area, high aspect ratio, and impressive material properties, such as mechanical strength, and thermal and electrical …
Recently, Paul et al. has summarized the heteroatom doped 3D carbon-based metal-free catalysts for electrochemical catalytic applications for efficient energy conversion and storage [136]. 1.5. Metal or Metal Oxide Based Hybrid Carbon Materials
Abstract. Carbon nanotubes (CNTs), a typical one-dimensional carbon material, have been extensively studied for electrical and electronic applications for more than two decades. Owing to their unique morphology and outstanding electrochemical characteristics, CNTs are of promising potentials in energy storage applications.
Abstract. Energy production and storage are both critical research domains where increasing demands for the improved performance of energy devices and the requirement for greener energy resources constitute immense research interest. Graphene has incurred intense interest since its freestanding form was isolated in 2004, and with …
Various synthesis techniques of graphene-carbon nanotube (GCNTs) hybrid for energy storage and generation are discussed. GCNTs based supercapacitors, …
Under atmospheric conditions, graphene shows electron mobility in the order of 10 4 cm 2 V −1 s −1 with multiple potential applications in energy storage and conversion, sensors, and water-splitting, but the zero band-gap nature limits its application for
Studies have revealed that both graphene and carbon nanotube-based electrodes have brought about advancement in energy storage capacity in supercapacitors. The reasons cited for their superior performance is their high surface area and high porosity which are accountable for improved electrical conductivity and charge transport capability …
The interaction of FWNT and rGO sheets can dramatically increase the stress strength from 193.3 to 385.7 MPa and electrical conductivity from 53.3 to 210.7 S/cm compared to pristine rGO fiber by using the similar method, while the fiber based supercapacitor illustrated a specific capacitance of 38.8 F/cm 3.
Aerogels are 3-D nanostructures of non-fluid colloidal interconnected porous networks consisting of loosely packed bonded particles that are expanded throughout its volume by gas and exhibit ultra-low density and high specific surface area. Aerogels are normally synthesized through a sol–gel method followed by a special drying …
There is enormous interest in the use of graphene-based materials for energy storage. This article discusses the progress that has been accomplished in the development of chemical, electrochemical, and electrical energy storage systems using graphene. We summarize the theoretical and experimental work on graphene-based hydrogen storage …
Recently, Hong et al. [29] have formulated γ-Fe 2 O 3 /CNT composite for their application in the field of energy storage. The composite showed superior cycling capacity (1186.8 mAh g −1 ) even after 400 cycles at a current of 200 mA g −1 along with excellent reversible capacity (518.5 mAh g −1 ).
Due to the excellent properties of graphene and CNTs, CNT-graphene heterostructures have been proposed as electrodes, catalysts, as well as materials for hydrogen storage and interconnects. In this section, examples are given stressing the advantages of using CNT-graphene heterostructures for such applications. 4.1.
Graphene and carbon nanotubes (CNTs) have been widely used as electrode materials for electrochemical energy storage devices (e.g., supercapacitors), but often result in limited performance because of their serious aggregation. To address the aforementioned crucial issue, herein, a three-dimensional seamless
Here we disclose a method to bond graphene and single-walled carbon nanotubes seamlessly during the growth stage. The hybrid material exhibits a surface area >2,000 m 2 g −1 with ohmic contact ...
Although the graphene-carbon nanotube(G-CNT) hybrid has attracted much attention in energy storage research, it has the limitation of low volumetric capacitance due to its agglomerated structure. So, optimizing its structural parameter is the key to achieving high performance. Herein, described the preparation and …
The LbL-PANi/MWNT films consist of a nanoscale interpenetrating network structure with well developed nanopores that yield excellent electrochemical performance for energy storage applications. These LbL-PANi/MWNT films in lithium cell can store high volumetric capacitance (∼238 ± 32 F/cm 3 ) and high volumetric capacity (∼210 mAh/cm 3 ).
Micro-supercapacitors are promising energy storage devices that can complement or even replace batteries in ... Yu, D. & Dai, L. Self-assembled graphene/carbon nanotube hybrid films for ...
Abstract. Composite materials with carbon nanotube and graphene additives have long been considered as exciting prospects among nanotechnology applications. However, after nearly two decades of work in the area, questions remain about the practical impact of nanotube and graphene composites. This uncertainty …
In this paper, we study the storage of hydrogen gas molecules in terms of physical adsorption on a carbon-based nanomaterial, i.e., a novel graphene-carbon …
Hydrogen storage is an active area of research particularly due to urgent requirements for green energy technologies. In this paper, we study the storage of hydrogen gas molecules in terms of physical adsorption on a carbon-based nanomaterial, i.e., a novel graphene-carbon nanotube hybrid. The novel carbon nanostructures were …
Yang and others published Carbon nanotube- and graphene-based nanomaterials and applications ... which is a suitable material for energy storage applications based on the electrical double-layer ...
The graphene/CNT composite fiber showed much increased conductivity of (450 ± 20) S cm −1 and improved tensile strength of ∼630 MPa. The graphene/CNT composite fiber had been used as electrodes to produce high-performance wire-shaped DSSCs with photoelectric conversion efficiencies up to 8.50 %.
Laser synthesis of Ni x Zn y O/reduced graphene oxide/carbon nanotube electrodes for energy storage applications Author links open overlay panel P. García Lebière a, A. Pérez del Pino a, C. Logofatu b, E. György a c
Carbon nanotubes (CNTs) or graphene-based nanomaterials functionalized by different strategies have attracted great attention for energy storage due to their large specific surface area, high …
Furthermore, the energy storage device applications of the graphene-CNT hybrid structure are discussed based on the literature and our experimental data. Discover the world''s research 25+ million ...
Various synthesis techniques of graphene-carbon nanotube (GCNTs) hybrid for energy storage and generation are discussed. GCNTs based supercapacitors, LIBs, lithium sulphur batteries, sodium ion batteries, potassium ion batteries are discussed.
Dispersed Ag 2 O/Ag on CNT-Graphene Composite: An Implication for Magnificent Photoreduction and Energy Storage Applications Mohamed Mokhtar Mohamed 1 M. Khairy 1,2 * Ahmed Ibrahem 3 1 Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
Graphene has now enabled the development of faster and more powerful batteries and supercapacitors. In this Review, we discuss the current status of graphene in energy storage, highlight ongoing ...
Carbon nanotubes-graphene (CNTs-G) hybrids are three-dimensional (3D) carbonaceous structures that have attracted researchers'' interest in the last decade. Because of the unique properties of ...
Graphene paper shows a great promise for the electrical energy storage. However, the high stability, purity and specific surface area have become stringent requirements for supercapacitor ...
Recent achievements of 3D Carbon nanotubes-graphene (CNTs-G) hybrids heterostructures are reviewed. Fundamentals, theoretical calculations, and practical synthesis of various types of 3D CNTs-G hybrids are discussed. Applications of CNTs-G hybrids in certain energy-related reactions and electrochemical devices are exemplified.
The CNT midrib provides a natural electron diffusion path for the leaf-like GO, and therefore, this leaf-like GO with a CNT midrib displays excellent performance when applied in energy storage devices, including Li-O 2 batteries, Li-ion batteries, and supercapacitors.
It demonstrates strategies for the hybridization of CNTs with graphene, which fully utilize the synergistic effect between graphene and CNTs. It also presents a wide range of applications of graphene–CNT hybrids as …
This review article discusses in short the synthesis, properties and applications of CNTs. This includes the need for functionalization of CNTs, methods and types of functionalization, and properties of functionalized CNTs and their applications especially with respect to material and biomedical sciences, water purification, and drug delivery systems.
Wearable fiber-shaped integrated energy conversion and storage devices have attracted increasing attention, but it remains a big challenge to achieve a common fiber electrode for both energy …