Design of High-Performance Symmetric Supercapacitor Based on WSe 2 Nanoflakes for Energy Storage
3 · Recently, transition metal dichalcogenides (TMDCs) have emerged as promising candidates as electrode materials for energy storage applications due to their remarkable physio-chemical properties. In the present work, a highly pure and crystalline tungsten diselenide (WSe2) thin-film-based supercapacitive electrode has been successfully
Storage
The Challenge. Sustainable energy storage is foundational to moving away from fossil fuels, but advances are needed in the efficiency, reliability, safety, sustainability, and scale of energy storage solutions. A particular focus is needed on multi-functional batteries that integrate and optimize storage with solar and wind generation, as well
Robust P-Se bond coupling of atomically amorphous W-P
Herein, deep modulation of storage sites is achieved by constructing a composite (W-P/WSe/C) based on atomically amorphous W-P clusters (W-P coordination) and
Unravelling the trifunctional electrochemical properties of WSe 2
S15, SI demonstrates the practical application of the WSe 2 FSSC as an energy storage device for powering portable electronic devices. The WSe 2 FSSC was initially charged by the solar cell (renewable energy) and the stored electrical energy was used to power up a multifunctional electronic display (MFED) over 50 min, suggesting
Design of High-Performance Symmetric Supercapacitor Based on WSe2 Nanoflakes for Energy Storage
4 · The sputtered WSe2 thin-film electrode demonstrates an impressive increase in areal capacitance of almost 7.7 times when compared to the bare graphite substrate, with a measurement of 149.75 mF cm
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Constructing ion diffusion highway in strongly coupled WSe 2
Importantly, the obtained WSe 2 /PNCNS anode and active carbon (AC) cathode are used to assemble KIHCs, which can deliver a high energy density of 111.9
Emerging WS2/WSe2@graphene nanocomposites: synthesis and electrochemical energy storage
These materials have received considerable attention in electro-chemical energy storage applications such as lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), and supercapacitors
Controlled synthesis of 2H-WSe2@rGO nanocomposites: An
The addition of rGO with WSe 2 is expected to enhance the energy storage properties of the WSe 2 electrode. To the best of our knowledge, it is the first report on WSe 2 @rGO as a positive electrode material that shows significantly high value of SC (1371 Fg −1 at 0.5 Ag −1 ) with 88% of capacitance retention for 3000 cycles.
Nanocrystalline WSe2 excels at high-performance anode for Na storage
9.32 g·cm−3 oers great potential for high volumetric energy density [30–32]. Therefore, it is reported that WSe 2 can be employed as a promising material for Na ion storage [33, 34]. However, the inherently low conductivity, slow kinet-ics and severe volume 2
Emerging WS2/WSe2@graphene nanocomposites: synthesis
, (WS 2) (WSe 2) 、、;,,
Construction of WSSe2/C anode with enlarged layer spacing for efficient Na+ storage
However, among electrochemical energy storage systems, the economic advantages of common lithium-ion batteries (LIBs) are insufficient [3]. In recent years, developing cheaper sodium-ion energy storage devices represented by sodium-ion batteries and capacitors (SIBs/SICs) has become a priority for adapting large-scale energy storage [ 4, 5 ].
Integrated Energy Aerogel of N,S-rGO/WSe 2 /NiFe-LDH for Both Energy Conversion and Storage
High-performance active materials for energy-storage and energy-conversion applications require a novel class of electrodes: ones with a structure conducive to conductivity, large specific surface area, high porosity, and mechanical robustness. Herein, we report the design and fabrication of a new ternary hybrid aerogel. The process entails an in situ
Constructing ion diffusion highway in strongly coupled WSe2
Constructing ion diffusion highway in strongly coupled WSe2-carbon hybrids enables superior energy storage performance. Yu et al. demonstrate a general method to
Ultra-fast and accurate binding energy prediction of shuttle effect
Among these energy storage systems, lithium-sulfur battery is of great interest because of its high theoretical energy density, and the abundance of sulfur. Nevertheless, the shuttle effect of lithium polysulfides (LiPS) seriously decreases the cycle life, which is a fatal defect that still remains a great challenge.
Emerging WS2/WSe2@graphene nanocomposites: synthesis
： WS2/WSe2@：.,（WS 2 ）（WSe 2 ）、
High-energy aqueous rechargeable batteries based on WSe 2
"Rocking-chair" zinc-ion batteries (ZIBs) are potential commercial energy storage devices because of their high energy density and safety. However, using appropriate cathode materials with weak polarization effect and tolerating the rapid insertion/extraction of zinc ions are still the huge challenges. Here, a WSe2 nano-flower
Emerging WS2/WSe2@graphene nanocomposites: synthesis
In recent years, tungsten disulfide (WS2) and tungsten selenide (WSe2) have emerged as favorable electrode materials because of their high theoretical capacity,
Robust P-Se bond coupling of atomically amorphous W-P clusters to crystalline WSe2 via dual p-band centers for enhanced sodium-ion storage
The relationship between the amorphous advantages, WSe 2 reconfiguration and storage performance of the composite (W-P/WSe 2 /C) is systematically investigated. The clusters have rich unsaturated vacancy defects and dangling bonds, and their hybridization with WSe 2 in the p-p orbitals can effectively modulate the dual p -band
Construction of WSSe2/C anode with enlarged layer spacing for efficient Na+ storage
However, among electrochemical energy storage systems, the economic advantages of common lithium-ion batteries (LIBs) are insufficient [3]. In recent years, developing cheaper sodium-ion energy storage devices represented by sodium-ion batteries and capacitors (SIBs/SICs) has become a priority for adapting large-scale energy storage [4,5].
Hierarchical two-atom-layered WSe 2 /C ultrathin crumpled
Besides, WSe 2 has a high mass density, gifting the battery a high volume energy density when it is used as an electrode material [29]. Recent literature also
Nanocrystalline WSe 2 excels at high-performance anode for Na
In this paper, nanocrystalline WSe 2 was successfully synthesized by a facile one-pot hydrothermal method, and the electrochemical performance for Na ion storage was
Constructing ion diffusion highway in strongly coupled WSe2-carbon hybrids enables superior energy storage
The SICs delivered superior energy/power densities (the maximum energy density is 123.1 W h kg−1 and the maximum power density is 14.1 kW kg-1), demonstrating a promising alternative of WSe2 for
Design of High-Performance Symmetric Supercapacitor Based on
3 · Recently, transition metal dichalcogenides (TMDCs) have emerged as promising candidates as electrode materials for energy storage applications due to their
A weakly solvating electrolyte towards practical rechargeable
Rechargeable aqueous Zn-ion batteries (AZIBs) are promising electrochemical devices for stationary energy storage that have been widely investigated by both academia and industry because of the
Hierarchical two-atom-layered WSe2/C ultrathin crumpled nanosheets assemblies: Engineering the interlayer spacing boosts potassium-ion storage
Article Constructing ion diffusion highway in strongly coupled WSe 2-carbon hybrids enables superior energy storage performance Yu et al. demonstrate a general method to construct ion diffusion
Facile synthesis of layered 2H-WSe 2 nanosheets for asymmetric
As confirmed by SEM images, the formation of mesoporous WSe 2 nanosheets improve the electrochemical energy storage feature of the electrode materials. The WSe 2 electrode exhibits SC value of 618.75 F/g at current density of 3.3 A/g with relatively batter cyclic stability.
Energy Storage Materials
The charge density of W-P/WSe 2 near the Fermi energy level is obviously higher than that of WSe 2, implying that the p orbitals occupied by Se in WSe 2 rise to high energy levels. This may be due to the P-Se bond coupling produced by the hybridization of the p-p orbitals, which lowers the bandgap of W-P/WSe 2 and significantly enhances the
Layered transition metal dichalcogenides for electrochemical energy generation and storage
Layered transition metal dichalcogenides (TMDs) (MoS2, MoSe2, WS2, WSe2, etc.) are a chemically diverse class of compounds having band gaps from 0 to ∼2 eV and remarkable electrochemical properties. The band gaps and electrochemical properties of TMDs can be tuned by exchanging the transition metal or chalco
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