【摘 要】
：
NS codoped carbon nanorods (NS-CNRs) were prepared using crab shell as template and polyphenylene sulfide (PPS) as both the C and S precursor,followed by carbonization in NH3.The as-obtained NS-CNRs had a diameter of ～50 nm,length of several micrometers,a
【机 构】
：
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversi
论文部分内容阅读
NS codoped carbon nanorods (NS-CNRs) were prepared using crab shell as template and polyphenylene sulfide (PPS) as both the C and S precursor,followed by carbonization in NH3.The as-obtained NS-CNRs had a diameter of ～50 nm,length of several micrometers,and N and S contents of 12.5 at.％ and 3.7 at.％,respectively,which can serve as anodes for both lithium-ion batteries (LIBs) and sodium ion batteries (SIBs).When serving as an anode of LIB,the NS-CNRs delivered gravimetric capacities of 2154 mAh g-1 at current densities of 0.1 A g-1 and 625 mAh g-1 at current densities of 5.0 A g-1 for 1000 cycles.When serving as an anode of SIB,the NS-CNRs delivered gravimetric capacities of 303 mAh g 1 at current densities of 0.1 A g-1 and 230 mAh g-1 at current densities of 1.0 A g-1 for 3000 cycles.The excellent electrochemical performance of NS-CNRs could be ascribed to the one-dimensional nanometer structure and high level of heteroatom doping.We expect that the obtained NS-CNRs would benefit for the future development of the doped carbon materials for lithium ion batteries and other extended applications such as supercapacitor,catalyst and hydrogen storage.
其他文献
Amine-silica composite materials for post-combustion CO2 capture have attracted considerable attention because of their high CO2 uptake at low CO2 concentrations,excellent CO2 capture selectivity in the presence of moisture,and lower energy requirements f
Facile production of high quality activated carbons from biomass materials has greatly triggered much attention presently.In this paper,a series of interconnected porous carbon materials from lotus root shells biomass are prepared via simple pyrolysis and
Herein,we report on the synthesis and Li-ion storage properties of the 0D-2D nanohybrid consisted of bimetal phosphorus trisulfides nanoneedles (Co0.5Ni0.5PS3) and graphene nanosheets (denoted as Co0.5Ni0.5PS3@G).By choosing the Co0.5Ni0.5(OH)2 nanoneedle
A separator film for high-performance Li-ion batteries was prepared by electrospinning.The film had a hybrid morphology of silica nanofibers (SNFs) and alumina nanoparticles (ANPs),with a smooth surface,polymer-free composition,high porosity (79％),high el
The Earth\'s sustainable development is threatened by the increasing atmospheric CO2 level which can be attributed to the imbalance of CO2 due to the rapid consumption of fossil fuels caused by human activities and the slow absorption and conversion of
Two novel hole transport materials (HTMs) with indaceno[1,2-b:5,6-b\']dithiophene (IDT) as core building blocks,termed IDT1 and IDT2,were designed and synthesized.The side alkyl chains were introduced to regulate and control the morphology and stacking
Recently,binary metal oxides have been considerably researched for energy storage since it can provide higher electrical conductivity and electrochemical activity than single components.Besides,rational arrays structure design can effectively enhance the
Applications of in-situ and ex-situ spectroscopic ellipsometry (SE) are presented for the development of parametric expressions that define the real and imaginary parts (ε1,ε2) of the complex dielectric function spectra of thin film solar cell components.
Lead halide perovskites have some unique properties which are very promising for optoelectronic applications such as solar cells,LEDs and lasers.One important and expected application of perovskite halide semiconductors is solar cell operation including h
Herein we report a systematical investigation on the promoting effect of the carbon chain length of the intercalated carboxylic anions on the CO2 capture performance of Mg-Al layer double hydroxides (LDHs).A series of organo-LDHs were successfully synthes