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Article
N, S-codoped porous carbon nanosheets decorated with Fe3C nanoparticles as high-performance anode materials for lithium ion hybrid supercapacitors
The practical applications of carbon anode for lithium-ion batteries (LIBs) are largely obstructed by their moderate rate capability and cyclic stability. Herein, we report a N, S-codoped porous carbon nanoshe...
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Article
Enhanced electrochemical performance of Li1.2Mn0.54Ni0.13Co0.13O2 prepared by using activated carbon as template and carbon source
A novel carbon modified Li1.2Mn0.54Ni0.13Co0.13O2 has been successfully fabricated by using activated carbon (AC) as template and carbon source via sol-gel method. The AC modified Li1.2Mn0.54Ni0.13Co0.13O2 (denot...
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Article
Open AccessTreatment of large avulsion injury in perianal, sacral, and perineal regions by island flaps or skin graft combined with vacuum assisted closure
Traumatic avulsion injuries to the anus, although uncommon, can result in serious complications and even death. Management of anal avulsion injuries remains controversial and challenging. This study aimed to i...
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Article
High-performance Li3V2(PO4)3/C cathode material with a mixed morphology prepared by solvothermal assisted sol–gel process
A carbon-coated LVP composite with a mixed morphology of particles and needles (M-LVP/C) has been successfully synthesized by a novel solvothermal assisted sol–gel process. Compared to S-LVP/C with single part...
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Article
Natural graphite enhanced the electrochemical performance of Li3V2(PO4)3 cathode material for lithium ion batteries
Natural graphite treated by mechanical activation can be directly applied to the preparation of Li3V2(PO4)3. The carbon-coated Li3V2(PO4)3 with monoclinic structure was successfully synthesized by using natural g...
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Article
Synthesis of N-doped graphene/SnS composite and its electrochemical properties for lithium ion batteries
N-doped graphene/SnS composite as high-performance anode materials has been synthesized by a simultaneous solvothermal method using ethylene glycol as solvent. The morphology, structure, and electrochemical pe...
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Article
Reduced graphene oxide/porous Si composite as anode for high-performance lithium ion batteries
Reduced graphene oxide/porous Si composite was fabricated through magnesiothermic reduction of mesoporous silica and subsequent dispersing porous Si in the suspension of graphene oxide followed by reduced proc...
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Article
Synthesis and electrochemical performance of Li2FeSiO4/C cathode material using ascorbic acid as an additive
Carbon-coated Li2FeSiO4 composite (LFS/C-AA) was synthesized via a refluxing-assisted solid-state reaction by using ascorbic acid as additive and characterized by X-ray diffraction (XRD), scanning electron micros...
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Article
Double-walled core-shell structured Si@SiO2@C nanocomposite as anode for lithium-ion batteries
Double-walled core-shell structured Si@SiO2@C nanocomposite has been prepared by calcination of silicon nanoparticles in air and subsequent carbon coating. The obtained Si@SiO2@C nanocomposite demonstrates a reve...
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Article
Polyaniline encapsulated silicon nanocomposite as high-performance anode materials for lithium ion batteries
Polyaniline encapsulated silicon (Si/PANI) nanocomposite as anode materials for high-capacity lithium ion batteries has been prepared by an in situ chemical polymerization of aniline monomer in the suspension ...
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Article
Open AccessSystematic investigation on Cadmium-incorporation in Li2FeSiO4/C cathode material for lithium-ion batteries
Cadmium-incorporated Li2FeSiO4/C composites have been successfully synthesized by a solid-state reaction assisted with refluxing. The effect and mechanism of Cd-modification on the electrochemical performance of ...
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Article
Effects of the image potential on electronic and impurity states in a quantum box
The effects of the image potential on electronic and hydrogenic impurity states in a quantum box are investigated using the variational approach. The results show that when the image potential is considered, t...
