以过氧钼酸溶胶为反应前驱体采用简单的水热方法,在没有任何模板剂的条件下合成三氧化钼纳米带,通过XRD,SEM,TEM和IR等测试方法对产物进行结构表征和形貌分析.结果表明,MoO3纳米带的宽度为100~500 nm,平均厚度为70 nm,长度可达十几μm;其电化学实验结果表明,MoO3纳米带的首次放电比容量可达310 mAh·g-1,循环10次后其放电比容量为265 mAh·g-1,容量保持率达85.5%,循环性能优良.
参考文献
[1] | 杨书廷,贾俊华,郑立庆,曹朝霞.稀土掺杂对锂离子电池正极材料LiMn2O4结构及电性能的影响[J].中国稀土学报,2003(04):413-416. |
[2] | Subramanian V;Zhu Hongwei;Wei Bingqing .High rate reversibility anode materials of lithium batteries from vapor-grown carbon nanofibers[J].Journal of Physical Chemistry B,2006,110:7178. |
[3] | 叶尚云,张平伟,乔芝郁.层状Ni-Mn基锂离子电池正极材料进展[J].稀有金属,2005(03):328-338. |
[4] | Winny Dong;Bruce Dunn .Sol-gel synthesis and characterization of molybdenum oxide gels[J].Journal of Non-Crystalline Solids,1998,225:135. |
[5] | Sunua S S;Prabhu E;Jayaraman V et al.Electrical conductivity and gas sensing properties of MoO3[J].Sensors and Actuators B:Chemical,2004,101:161. |
[6] | Geng D Y;Ziang Z D;Zhang M et al.Structure and surface characterization of α-MoO3 whiskers synthesized by an oxidation process[J].Scripta Materialia,2004,50:983. |
[7] | Guzman G;Yebka B;Livage J et al.Lithium intercalation studies in hydrated molybdenum oxide[J].Solid State Ionics,1996,86-88:407. |
[8] | Tsumura T.;Inagaki M. .LITHIUM INSERTION/EXTRACTION REACTION ON CRYSTALLINE MOO3[J].Solid state ionics,1997(3/4):183-189. |
[9] | Tang Jia;Li Yidong;Liu Baohong et al.Time-resolved electrochromic properties of MoO3 thin films electrodeposited on a flexible substrate[J].J Solid State Eletrochem,2003,7:244. |
[10] | Seguin L;Figlarz M;Cavagnat R et al.Infrared and raman spectra of MoO3 molybdenum trioxides and MoO3· xH2O molybdenum trioxide hydrates[J].SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECU,1995,51:1323. |
[11] | Li Weiyang;Cheng Fangyi;Tao Zhanliang et al.Vapor-transportation preparation and reversibility lithium intercalation/deintercalation of α-MoO3 microrods[J].Journal of Physical Chemistry B,2006,110:119. |
[12] | Tsumura T.;Inagaki M. .LITHIUM INSERTION/EXTRACTION REACTION ON CRYSTALLINE MOO3[J].Solid state ionics,1997(3/4):183-189. |
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