以V2O5晶体粉末、H2O2(30%(质量分数))为原材料,采用溶胶-凝胶法,通过溶剂替换工艺在常压下成功地制备了纳米多孔结构的V2O5气凝胶材料.采用扫描电镜(SEM)、透射电镜(TEM)、比表面积仪(BET)、粉末X射线衍射(XRD)、傅立叶红外分光光度计(FTIR)和拉曼光谱仪(Raman)等方法分别观察和测试了V2O5气凝胶材料的形貌、晶态结构及分子振动.SEM、TEM观察表明,常压干燥制备的V2O5气凝胶呈比较规则的具有层状结构的纤维网络状结构;XRD分析表明,由于结合水插入层间而使V2O5气凝胶的层间距有明显的增加;BET测试结果表明,常压干燥制备的V2O5气凝胶材料的平均孔径为16nm,最大孔径为78nm.
参考文献
| [1] | Dell RM. .Batteries - fifty years of materials development[J].Solid state ionics,2000(1/2):139-158. |
| [2] | Park N G;Ryu K S;Park Y J et al.Synthesis and electrochemical properties of V2O5 intercalated with binnry polymers[J].Journal of Power Sources,2002,103:273. |
| [3] | Dong W;Sakamoto J S;Dunn B .Electrochemical properties of vanadium oxide aerogels and aerogel nanocomposites[J].Journal of Sol-Gel Science and Technology,2003,26:641. |
| [4] | 房兴梅,吴广明,王爱荣,肖锟,沈军,周斌.锂电池阴极材料V2O5常压干燥气凝胶的制备及离子输运特性[J].功能材料与器件学报,2007(06):522-528. |
| [5] | 杨绍利,徐楚韶,陈厚生,胡再勇.由工业V2O5制取VO2薄膜[J].钢铁钒钛,2002(02):7-10. |
| [6] | Livage J. .SOL-GEL CHEMISTRY AND ELECTROCHEMICAL PROPERTIES OF VANADIUM OXIDE GELS[J].Solid state ionics,1996(2):935-942. |
| [7] | Hirashima H;Sudoh K .Preparation of V2O5 aerogels and aerogel coatings[J].Journal of Non-Crystalline Solids,1992,145:51. |
| [8] | 朱沁伟,余晴春,黄海燕.V2O5干凝胶的制备新方法[J].功能材料,2000(06):660. |
| [9] | Passerini S;Ressler J J et al.High rate electrodes of V2O5 aerogel[J].Electrochimica Acta,1999,44:2209. |
| [10] | Winny Dong;Jeffrey S. Sakamoto;Bruce Dunn .Electrochemical properties of vanadium oxide aerogels[J].Science and technology of advanced materials,2003(1):3-11. |
| [11] | Mui SC;Jasinski J;Leppert VJ;Mitome M;Sadoway DR;Mayes AM .Microstructure effects on the electrochemical kinetics of vanadium pentoxide thin-film cathodes[J].Journal of the Electrochemical Society,2006(7):A1372-A1377. |
| [12] | Tarascon J M et al.Mechanism transition of cell-impedance-controlled lithium transport through Li1-δ-Mn2O4 composite electrode caused by surface-modification and temperature variation[J].Electrochimica Acta,1993,38:1221. |
| [13] | Guyomard D;Tarascon J M .The carbon/Li1+xMn2O4 system[J].Solid State Innics,1994,69:222. |
| [14] | Padhi A K;Nanjundaswamy K S;Masquelier C et al.New cathode materials for rechargeable lithium batteries:The 3-D framework structures Li3Fe2 (XO4)3 (X= P,As)[J].Journal of the Electrochemical Society,1997,144:1188. |
| [15] | Padhi A K;Nanjundaswamy K S;Masquelier C et al.Vibrational spectroscopic studies of monoclinic and rhombohedral Li3V2(PO4)3[J].J Electrochem Soe,1997,144:1609. |
| [16] | Abello L et al.Vibrational spectra and valence force field of crystalline V2O5[J].Spectrochimica Acta,1983,39:641. |
| [17] | Livage J .Vanadium pentoxide gels[J].CHEMISTRY OF MATERIALS,1991,3:578. |
| [18] | Fauza Jac6 Anaissi et al.Long-term aging of vanadium(Ⅴ) oxide xerogel precursor solutions:Structural and electrochemical implications[J].Electrochimica Acta,2001,47:441. |
| [19] | 吴广明,吴永刚,倪星元,周箴,吴翔,王珏,陈炎.锂离子注入对V2O5薄膜红外振动特性影响[J].材料研究学报,2000(02):210-214. |
| [20] | 韩伟屏;欧阳峰 .V2O5/SiO2界面固溶过程的红外特征[J].催化学报,1989,10(03):268. |
| [21] | Benmoussa M.;Bennouna A.;Ameziane EL.;Ibnouelghazi E. .STRUCTURAL, ELECTRICAL AND OPTICAL PROPERTIES OF SPUTTERED VANADIUM PENTOXIDE THIN FILMS[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1995(1/2):22-28. |
| [22] | 王学进;费允杰 等.氧化钒薄膜的拉曼散射[J].光散射学报,2002,13(04):235. |
| [23] | Sahana MB;Sudakar C;Thapa C;Lawes G;Naik VM;Baird RJ;Auner GW;Naik R;Padmanabhan KR .Electrochemical propertiesOf V2O5 thin films deposited by spin coating[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2007(1/3):42-50. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%