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Journal of Materials Chemistry A
Endowed by the unique "synergistic effect" of Co and B interaction with polysulfides and the high electrical conductivity of graphene, the cobalt boride (Co 2 B)@graphene composite shows a specific capacity of 1487 mA h g −1 at 0.1C and delivers an outstanding cycling performance with a capacity of 758 mA h g −1 for the 450 th cycle at ...
C | Free Full-Text | Graphene-Enhanced Battery …
This review paper introduces how graphene can be adopted in Li-ion/Li metal battery components, the designs of graphene-enhanced battery materials, and the role of graphene in different …
Ternary perovskite cobalt titanate/graphene composite material as long-term cyclic anode for lithium-ion battery …
Semantic Scholar extracted view of "Ternary perovskite cobalt titanate/graphene composite material as long-term cyclic anode for lithium-ion battery" by M. Li et al. DOI: 10.1016/J.JALLCOM.2017.01.073 Corpus ID: 100507758 Ternary perovskite cobalt titanate ...
The role of graphene in rechargeable lithium batteries: Synthesis, …
Therefore, graphene is considered an attractive material for rechargeable lithium-ion batteries (LIBs), lithium-sulfur batteries (LSBs), and lithium-oxygen batteries …
Graphene for batteries, supercapacitors and beyond
Nature Reviews Materials - 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...
Alternative battery chemistries: Which are winning the race to …
However, unless the supply of raw materials can be assured, the global push for EVs may falter just as demand increases. With the core elements that make up the battery supply chain – cobalt, lithium, graphite and nickel – being primarily sourced in countries such as the Democratic Republic of Congo and on continents such as Asia,
Fabrication of Cobalt Sulfide/Graphene Sheets Nanocomposite …
A cobalt sulfide (CoS)/graphene sheets (GS) nanocomposite was successfully synthesized through a simple one-pot hydrothermal route assisted by ethylenediamine. ... Integrating nanosized CoS compound and GS outstanding merits, the as-obtained CoS/GS nanocomposite as an anode material for lithiumion battery …
Three-dimensional reduced graphene oxide decorated …
Transition metal cobalt metaphosphate-based materials have the potential to replace the noble metal Pt. Hence, in this work, we synthesize three-dimensional graphene-supported cobalt …
Hierarchically structured graphene-carbon nanotube-cobalt hybrid ...
Hierarchically structured graphene-carbon nanotube-cobalt hybrid electrocatalyst for seawater battery. ... Cobalt-based materials have recently attracted much interest as cost-effective oxygen electrocatalysts ... The battery is composed of a flowing natural seawater catholyte and a Na metal anode in an organic electrolyte, which …
Sea-urchin-like nickel–cobalt phosphide/phosphate composites as ...
In this study, sea-urchin-like bimetal nickel–cobalt phosphide/phosphate (Ni–Co–P/POx) samples were first synthesized by a low-temperature phosphating method. The phosphide phase shows a crystal nanoparticle morphology distributed in the matrix of the amorphous phosphate phase. By theoretical calculations, i
The role of graphene in rechargeable lithium batteries: Synthesis, …
The role of graphene in rechargeable lithium batteries
Stable wide-temperature and low volume expansion Al batteries: Integrating few-layer graphene with multifunctional cobalt …
To achieve stable positive electrode for promoting the overall electrochemical performance of Al batteries (ABs), here novel cobalt boride (CoB) nanoclusters are synthesized to construct composite electrodes with few-layer graphene (FLG). Due to the presence of amorphous channels in the employed CoB nanoclusters, …
Nitrogen‐Doped Graphene Oxide Nanoribbon Supported Cobalt …
As a graphene-based composite material, reduced graphene oxide nanoribbons (rGONR) possess an emerging architecture that confers multiple advantageous attributes for electrocatalysis. [ 38, 39 ] This is endowed by their attractive characteristics, including large specific surface area, enhanced electrical conductivity, and faster electron ...
Silicon Nanowires and Lithium Cobalt Oxide Nanowires in Graphene ...
Described here is the production and characterization of a scalable method to produce 3D structured lithium ion battery anodes using free-standing ... Silicon Nanowires and Lithium Cobalt Oxide Nanowires in Graphene Nanoribbon Papers for Full Lithium Ion Battery ... Department of Materials Science and NanoEngineering, Rice University, 6100 …
Graphene: Chemistry and Applications for Lithium-Ion Batteries
Graphene: Chemistry and Applications for Lithium-Ion ...
How to make Graphene Batteries
The cathode in a traditional battery is purely composed of solid-state materials, where as in a graphene battery the cathode is a composite-a hybrid material consisting of a solid-state metallic material and graphene. ... add graphene oxide (0.1 g) to cobalt acetate (350 mg) and deionised water (400 mL). To the solution add NH 4 OH (3800 µL ...
Enhanced Electrochemical Performance of Low-Content Graphene …
The enhancement of electrochemical performance in lithium-ion battery (LIB) anode materials through nanostructures is of paramount importance, facilitated by the synergistic integration of these unique architectures with active materials, which increases the availability of active sites and decreases the diffusion path for lithium ions. In this …
Cobalt oxide–graphene nanocomposite as anode materials for lithium-ion batteries …
Composites of Co3O4/graphene nanosheets are prepared and characterized by X-ray diffraction and scanning electron microscopy. Their electrochemical behavior as anode materials of lithium-ion rechargeable batteries is investigated by galvanostatic discharge/charge measurements and cyclic voltammetry. The composite is …
Synthesis and electrochemical performances of cobalt sulfides/graphene ...
DOI: 10.1016/J.JPOWSOUR.2013.01.093 Corpus ID: 98244671; Synthesis and electrochemical performances of cobalt sulfides/graphene nanocomposite as anode material of Li-ion battery
Construction of complex copper-cobalt selenide hollow structures …
Construction of complex copper-cobalt selenide hollow structures as an attractive battery-type electrode material for hybrid supercapacitors ... to maintain the power density and boost the energy density of supercapacitors is assembling hybrid supercapacitors with battery-type materials or ... Formation of graphene-wrapped multi …
Cobalt oxide–graphene nanocomposite as anode materials for …
Composites of Co3O4/graphene nanosheets are prepared and characterized by X-ray diffraction and scanning electron microscopy. Their electrochemical behavior as anode materials of lithium-ion rechargeable batteries is investigated by galvanostatic discharge/charge measurements and cyclic voltammetry. The composite is …
Ternary perovskite cobalt titanate/graphene composite material as long-term cyclic anode for lithium-ion battery …
CoTiO 3 /graphene composite were firstly synthesized for anode of Li-ion battery. CoTiO 3 /graphene composite shows better electrochemical performances than bare CoTiO 3. A novel perovskite CoTiO 3 /graphene composite with a particle size of 100 nm was synthesized by ball-milling and high temperature solid method and utilized as …
Graphene and cobalt phosphide nanowire composite …
The synthesis of a composite of cobalt phosphide nanowires and reduced graphene oxide (denoted CoP/RGO) via a facile hydrothermal method combined with a subsequent annealing step is …
Synthesis of cobalt oxide-reduced graphene nanocomposite and …
A reflux condensation route is proposed to synthesize Co 3 O 4 @rGO composite.. Co 3 O 4 @rGO composite is studied as anode material of alkaline secondary battery.. Effect of reduced-graphene on performance of Co 3 O 4 @rGO electrode is studied.. The maximum capacity of Co 3 O 4 @rGO-20 electrode is 511.4 mAh g −1 at …
Synthesis of cobalt oxide-reduced graphene nanocomposite and …
A potential negative electrode material Co 3 O 4 @rGO is synthesized via a facile reflux condensation route. The electrochemical performances of Co 3 O 4 @rGO composite for alkaline rechargeable Ni/Co batteries have been systemically investigated for the first time. The reduced-graphene can remarkably enhance the electrochemical …
Mechanochemical enhancement in electrode materials via
This study delves into the intricate domain of mechanochemical synthesis, employing a developed approach for the fabrication of electrode materials. The method involves the incorporation of silver nanoparticles into a two-dimensional matrix of reduced graphene oxide (RGO) combined with cobalt oxide nanostructures, yielding a zero …
Advanced Graphene Materials for Sodium/Potassium/Aluminum-Ion Batteries | ACS Materials Letters
Lithium-ion technology has led a revolution of portable electronics and is being widely used for large-scale applications such as electric vehicles. However, the main problem associated with the shortage of lithium resource poses a challenge for the traditional lithium-ion prototype and calls for exploration of alternative batteries. The bottleneck of …
The balanced improvement of electrochemical performance of cobalt disulfide anode material for sodium-ion batteries …
Recently, cobalt disulfide (CoS 2) as a promising candidate of anode material for sodium ion batteries is paid much attention because of the high theoretical capacity. However, the poor rate capability and cycling stability are still the barriers to the large-scale application of CoS 2 resulting from its low intrinsic electronic conductivity and …
C | Free Full-Text | Graphene-Enhanced Battery Components in …
Stepping into the 21st century, "graphene fever" swept the world due to the discovery of graphene, made of single-layer carbon atoms with a hexagonal lattice. This wonder material displays impressive material properties, such as its electrical conductivity, thermal conductivity, and mechanical strength, and it also possesses unique optical and …
Cobalt-boron nanoparticles anchored on graphene as anode of lithium ion batteries …
The SEM images and TEM images in Fig. 1 show the morphological properties of rGO/Co-B. The low-magnification image in Fig. 1 a and b shows a thin wrinkled paperlike structure and lots of nanoparticles are uniformly distributed on the surface of rGO.As shown in Fig. 1 c, the Co-B nanoparticles display nanospheres morphology with …