混合過渡金屬氧化物負極材料的合成及性能研究
發(fā)布時間:2018-06-11 11:30
本文選題:準(zhǔn)晶 + 鋰離子電池 ; 參考:《長春理工大學(xué)》2017年碩士論文
【摘要】:準(zhǔn)晶材料具有非常特殊的短程有序、長程準(zhǔn)周期無序的結(jié)構(gòu),擁有很特殊的物理、化學(xué)以及力學(xué)性能,因此對擴展準(zhǔn)晶應(yīng)用領(lǐng)域的探索研究非常有必要;诖,本工作設(shè)計了一系列以準(zhǔn)晶為主的前驅(qū)體合金,通過去合金化法制備了Fe_3O_4納米片,具有雙連續(xù)帶孔道結(jié)構(gòu)的Fe_3O_4/CuO/Cu以及微納尺寸的棒狀、片狀及八面體CoNi/CoO/NiO混合過渡金屬氧化物復(fù)合材料,并研究了前驅(qū)體合金組分、合成前驅(qū)體合金時的甩帶速度、去合金化反應(yīng)時間以及腐蝕溶液濃度等條件對產(chǎn)物組成及結(jié)構(gòu)的影響。實驗表明,這些混合過渡金屬氧化物作為鋰離子電池負極材料時,均表現(xiàn)出了優(yōu)異的電化學(xué)性能。
[Abstract]:Quasicrystals have very special short range order, long range quasiperiodic disordered structure, special physical, chemical and mechanical properties, so it is necessary to explore and study the extended quasicrystal application field. Based on this, a series of quasicrystalline precursor alloys were designed. Fe3O4 nanochips were prepared by dealloying method. Fe3O4 / CuO / Cu / Cu with double continuous channel structure and rods of micro / nano size were prepared. Sheet and octahedron CoO / nio mixed transition metal oxide composites were used to study the composition of the precursor alloy and the velocity of belt dumping in the synthesis of the precursor alloy. The influence of reaction time and concentration of corrosion solution on the composition and structure of the product. The experimental results show that these mixed transition metal oxides exhibit excellent electrochemical performance when they are used as anode materials for lithium ion batteries.
【學(xué)位授予單位】:長春理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TB383.1
【參考文獻】
相關(guān)期刊論文 前1條
1 Sadeh Beysen;;Hydrothermal growth of octahedral Fe_3O_4 crystals[J];Particuology;2009年01期
,本文編號:2005048
本文鏈接:http://sikaile.net/kejilunwen/cailiaohuaxuelunwen/2005048.html
最近更新
教材專著