Journal ArticleDOI
Rational Design of Three-Layered TiO2 @Carbon@MoS2 Hierarchical Nanotubes for Enhanced Lithium Storage.
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The rational design and synthesis of three-layered TiO2 @carbon@MoS2 hierarchical nanotubes for anode applications in lithium-ion batteries (LIBs) manifest remarkable lithium storage performance with good rate capability and long cycle life.Abstract:
Here we demonstrate the rational design and synthesis of three-layered TiO2 @carbon@MoS2 hierarchical nanotubes for anode applications in lithium-ion batteries (LIBs). Through an efficient step-by-step strategy, ultrathin MoS2 nanosheets are grown on nitrogen-doped carbon (NC) coated TiO2 nanotubes to achieve the TiO2 @NC@MoS2 tubular nanostructures. This smart design can effectively shorten the diffusion length of Li+ ions, increase electric conductivity of the electrode, relax volume variation of electrode materials upon cycling, and provide more active sites for electrochemical reactions. Owing to these structural and compositional features, the hierarchical TiO2 @NC@MoS2 nanotubes manifest remarkable lithium storage performance with good rate capability and long cycle life.read more
Citations
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Mesoporous SiO2 Nanoparticles: A Unique Platform Enabling Sensitive Detection of Rare Earth Ions with Smartphone Camera
TL;DR: A robust and low-cost protocol has been developed to analyze the concentration of rare earth ions using a smartphone camera using mesoporous silica nanoparticles with large-area negatively charged surfaces to enable a “concentrating effect”.
Journal ArticleDOI
BN nanosheets in-situ mosaic on MOF-5 derived porous carbon skeleton for high-performance lithium-ion batteries
TL;DR: In this paper, a porous carbon material embedded with BN (Boron Nitride), while B and N elements will enhance the electron transport speed thus improving the conductivity simultaneously, was used for improving the performance of lithium-ion batteries.
Journal ArticleDOI
Integrating a redox-coupled FeSe<sub>2</sub>/N–C photoelectrode into potassium ion hybrid capacitors for photoassisted charging
TL;DR: In this article , an energy-level-matched integrated photoelectrode with a 35.7% reduction in the reaction barrier based on electron-hole pair synergy under light irradiation was presented.
Journal ArticleDOI
Tunable Synthesis of Hierarchical Yolk/Double-Shelled SiO x @TiO 2 @C Nanospheres for High-Performance Lithium-Ion Batteries.
Qinghua Gong,Haiqing Wang,Wenhua Song,Wenhua Song,Bin Sun,Pei Cao,Shaonan Gu,Xuefeng Sun,Guowei Zhou +8 more
TL;DR: The proposed particle architecture is promising and may have potential applications in improving various high performance anode materials, including lithium-ion batteries' performance as anodes.
References
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Journal ArticleDOI
Issues and challenges facing rechargeable lithium batteries
TL;DR: A brief historical review of the development of lithium-based rechargeable batteries is presented, ongoing research strategies are highlighted, and the challenges that remain regarding the synthesis, characterization, electrochemical performance and safety of these systems are discussed.
Journal ArticleDOI
Building better batteries
TL;DR: Researchers must find a sustainable way of providing the power their modern lifestyles demand to ensure the continued existence of clean energy sources.
Journal ArticleDOI
The Li-ion rechargeable battery: a perspective.
John B. Goodenough,Kyusung Park +1 more
TL;DR: New strategies are needed for batteries that go beyond powering hand-held devices, such as using electrode hosts with two-electron redox centers; replacing the cathode hosts by materials that undergo displacement reactions; and developing a Li(+) solid electrolyte separator membrane that allows an organic and aqueous liquid electrolyte on the anode and cathode sides, respectively.
Journal ArticleDOI
Nitrogen-doped carbon nanotube arrays with high electrocatalytic activity for oxygen reduction.
TL;DR: It is reported that vertically aligned nitrogen-containing carbon nanotubes (VA-NCNTs) can act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction in alkaline fuel cells.
Journal ArticleDOI
What Are Batteries, Fuel Cells, and Supercapacitors?
Martin Winter,Ralph J. Brodd +1 more
TL;DR: Batteries, fuel cells and supercapacitors belong to the same family of energy conversion devices and are needed to service the wide energy requirements of various devices and systems.