通过用紫外-可见-近红外光谱、X射线光电子能谱及透射电镜等手段对采用反向胶束合成法,以二乙基磺基琥珀酸钠(AOT)形成的反胶束为模板制备出的导电聚合物聚3,4乙烯二氧噻吩(PEDOT)纳米粒子对HCl气体敏感性进行研究.沉积有纳米粒子的QCM器件对2.0×10~(-5)气体响应时间为20s,具有较好的响应恢复特性,能够有效探测低浓度(5×10~(-6))气体,气敏特性明显优于普通PEDOT粒子.
Based on a new type of conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT),this paper focused on the preparation and gas sensitivity of PEDOT nanostructure with reversed micelle method.PEDOT nanoparticles were characterized to gas sensitivity by different methods,such as ultraviolet/visible (UV-Vis) spectroscopy,X-ray photoelectron spectroscopy (XPS) and so on.The latest investigation of gas sensitivity of PEDOT nanoparticles to HCl gas was carried out,and it has been found that the response time of PEDOT nanoparticles deposited QCM to 2.0×10~(-5) HCl gas was about 20s and well reproducible sensitivity of QCM device was achieved.Furthermore,the nanoparticles exhibited well detecting ability to lower gas concentration (5×10~(-6)) than conventional one.
参考文献
| [1] | 李永舫.导电聚合物[J].化学进展,2002(03):207-211. |
| [2] | 李永舫 .[J].复旦大学学报,2004,6:468-481. |
| [3] | 薛怀国,沈之荃,张一烽,李永舫.导电聚合物传感器的研究进展[J].化学通报,2001(07):402-406. |
| [4] | Rain M K;Adaini M;Faraci P et al.[J].Polymer,2000,41(02):7499-7506. |
| [5] | Vilanova X.;Brezmes J.;Calderer J.;Correig X.;Llobet E. .Numerical simulation of the electrode geometry and position effects on semiconductor gas sensor response[J].Sensors and Actuators, B. Chemical,1998(1/3):425-431. |
| [6] | 罗利军,谭学才,邹小勇,蔡沛祥.导电聚合物传感器的研究进展[J].分析测试学报,2005(04):122-127. |
| [7] | Ichinohe D;Arai T;Kise H .[J].Synthetic Metals,1997,110(01):17-22. |
| [8] | Choi J W;Han M G;Kim S Y et al.[J].Synthetic Metals,2004,141:293-299. |
| [9] | 徐祖顺;易昌凤.聚合物纳米粒子[M].北京:化学工业出版社,2006 |
| [10] | Skompska M;Mieczkowski J;Holze R;Heinze E .In situ conductance studies of p- and n-doping of poly(3,4-dialkoxythiophenes)[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,2005(1):9-17. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%