分别在不同H＋离子浓度的酸性环境下,采用溶胶-凝胶法制备纳米多孔WO3粉体。利用粉末X射线衍射仪（XRD）、扫描电子显微镜（SEM）、傅立叶变换红外光谱仪（FT-IR）等分析手段对不同条件下制备的粉末样品晶体结构、微观形貌、透射光谱特性及化学健态结构进行对比研究。结果表明,在其它制备条件相同的情况下,强酸环境可以有效增加溶胶-凝胶的反应速度,而且有利于形成WO3材料的非晶化,可得到呈现交联网状的纳米级多孔结构。
The nanoporous WO3 powder was prepared by sol-gel method at strong and weak acid condition,respectively.The crystal structure,microstructure,transmittance and chemical performance of the samples were compared through XRD,SEM,FT-IR spectra.Results show that strong acid condition can improve the reaction velocity,facilitate the formation of non-crystal,and be beneficial to forming the network structure.
参考文献
| [1] | 张金伟,刁训刚,王怀义,黄俊,舒远杰.基底沉积温度对WO3薄膜电致变色特性的影响[J].宇航材料工艺,2007(05):43-45. |
| [2] | Kim, YS .Thermal treatment effects on the material and gas-sensing properties of room-temperature tungsten oxide nanorod sensors[J].Sensors and Actuators. B, Chemical,2009(1):297-304. |
| [3] | Sharma N.;Deepa M.;Varshney P.;Agnihotry SA. .FTIR and absorption edge studies on tungsten oxide based precursor materials synthesized by sol-gel technique[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2002(2):129-137. |
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%