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Study On Lithium Electric And Photocatalysis Properties Of Nanomaterials Prepared By Electrospinning

Posted on:2016-12-07Degree:MasterType:Thesis
Country:ChinaCandidate:S LinFull Text:PDF
GTID:2271330461497995Subject:Chemical Engineering
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In recent years, environmental protection workers have been committed to looking for efficient and environmental friendly method to purify pollutants. Semiconductor photocatalytic technology provides a new way for degradation of pollutants. The efficient photocatalytic material with visible effects is the key to improve the photocatalytic technology and performance. In this paper, the photocatalytic materials is fabricated by electrospinning and hydrothermal method,whose performance has been improved.Lithium-ion batteries is a new type of high-energy batteries, which has many advantages, such as light weight, high energy density, no memory effect and environment friendly. And attracted the researchers’ attention. However, there are many flaws in the performance of anode material for lithium-ion batteries in the currently research. The hollow fiber nano-inorganic and nano-fiber belt is first prepared by electrospinning and used as anode material for lithium-ion batteries. The performance of the anode material for lithium-ion batteries is improved because of its special morphology.Specific research contents are as follows:(1) Zn0.5Cd0.5S/[Ti O2-(Ti O2)X] composite photocatalysts were fabricated by hydrothermal method using Ti O2 nanofibers as reactant. And then, the photocatalytic properties of the composite photocatalys of Zn0.5Cd0.5S/[Ti O2-(Ti O2)X] in hydrogen production and the photocatalyst degration were studied.The results showed that the photocatalytic activites of Zn0.5Cd0.5S/[Ti O2-(Ti O2)X] composite was improved.(2) Co Mn2O4 nanomaterials were prepared by electrospinning. The solid nanofibers, hollow nanofibers and nanoribbons of Co Mn2O4 were obtained by calcination at different temperature.This nanomaterials were characterized for the structural by XRD, SEM, TEM analysis. And then the Lithium properties of Co Mn2O4 nanofibers with hollow structures was studied as an electrode material for lithium-ion batteries when the calcination temperature was 500℃. The methods include constant current charge-discharge test, cyclic voltammetry and rate performance testing.The results showed that the Co Mn2O4 nanofibers has much better properties than reported.(3) Mn Co2O4 nanomaterials were prepared by electrospinning, The solidnanofibers, hollow nanofibers and nanoribbons were obtained by different calcinations temperature.This nanomaterials characterized for the structural by XRD and SEM analysis. And then the Lithium properties of Mn Co2O4 nanoribbons were studied as an electrode material for lithium-ion batteries when the calcinations temperature was 700℃.The results showed that Mn Co2O4 nanoribbons of 700℃calcinations temperature has high properties, which will become an great potential materials for lithium-ion battery.
Keywords/Search Tags:Electrospinning, Hydrothermal method, Photocatalysis, Zn0.5Cd0.5S/[Ti O2-(Ti O2)X], Lithium-ion batteries, Co Mn2O4, Mn Co2O4
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