{"title":"聚(对苯)/ZSM-5复合材料的电导率响应","authors":"P. Phumman, A. Sirivat","doi":"10.1109/NANO.2007.4601372","DOIUrl":null,"url":null,"abstract":"Poly(p-phenylene) (PPP) was chemically synthesized via the oxidative polymerization of benzene and doped with FeCl<sub>3</sub>. Electrical conductivity response of doped PPP (dPPP) towards CO, H<sub>2</sub> and NH<sub>3</sub> was investigated. dPPP shows no response towards CO and H<sub>2</sub>, but it shows a definite negative response to NH<sub>3</sub>. The electrical conductivity sensitivity of dPPP increases with increasing NH<sub>3</sub> concentration. In order to improve sensitivity of the sensor, ZSM-5 zeolite is added into the conductive polymer matrix. The sensitivity of the sensor increases with increasing zeolite content up to 30%. Moreover, the effect of cation type residing in the zeolite pore is investigated: including Na<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub> <sup>+</sup> and H<sup>+</sup>. The electrical conductivity sensitivity of the composites with different cations in the zeolite can be arranged in this order; 50:1 dPPP(90)/KZ23 <50:1 dPPP<50:1 dPPP(90)/NaZ23<50:1 dPPP(90)/NH<sub>4</sub>Z23<50:1 dPPP(90)/HZ23. The variation in sensitivity with cation type can be described in term of the acid-base interaction. The 50:1 dPPP(90)/HZ23 possesses the highest sensitivity of -0.36 since H<sup>+</sup> has the highest acidity which induces more favorable NH<sub>3</sub> adsorption and interaction with the conductive polymer.","PeriodicalId":6415,"journal":{"name":"2007 7th IEEE Conference on Nanotechnology (IEEE NANO)","volume":"67 1","pages":"1085-1088"},"PeriodicalIF":0.0000,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrical conductivity response of poly(p-phenylene)/ZSM-5 composite\",\"authors\":\"P. Phumman, A. Sirivat\",\"doi\":\"10.1109/NANO.2007.4601372\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Poly(p-phenylene) (PPP) was chemically synthesized via the oxidative polymerization of benzene and doped with FeCl<sub>3</sub>. Electrical conductivity response of doped PPP (dPPP) towards CO, H<sub>2</sub> and NH<sub>3</sub> was investigated. dPPP shows no response towards CO and H<sub>2</sub>, but it shows a definite negative response to NH<sub>3</sub>. The electrical conductivity sensitivity of dPPP increases with increasing NH<sub>3</sub> concentration. In order to improve sensitivity of the sensor, ZSM-5 zeolite is added into the conductive polymer matrix. The sensitivity of the sensor increases with increasing zeolite content up to 30%. Moreover, the effect of cation type residing in the zeolite pore is investigated: including Na<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub> <sup>+</sup> and H<sup>+</sup>. The electrical conductivity sensitivity of the composites with different cations in the zeolite can be arranged in this order; 50:1 dPPP(90)/KZ23 <50:1 dPPP<50:1 dPPP(90)/NaZ23<50:1 dPPP(90)/NH<sub>4</sub>Z23<50:1 dPPP(90)/HZ23. The variation in sensitivity with cation type can be described in term of the acid-base interaction. The 50:1 dPPP(90)/HZ23 possesses the highest sensitivity of -0.36 since H<sup>+</sup> has the highest acidity which induces more favorable NH<sub>3</sub> adsorption and interaction with the conductive polymer.\",\"PeriodicalId\":6415,\"journal\":{\"name\":\"2007 7th IEEE Conference on Nanotechnology (IEEE NANO)\",\"volume\":\"67 1\",\"pages\":\"1085-1088\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 7th IEEE Conference on Nanotechnology (IEEE NANO)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NANO.2007.4601372\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 7th IEEE Conference on Nanotechnology (IEEE NANO)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NANO.2007.4601372","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Electrical conductivity response of poly(p-phenylene)/ZSM-5 composite
Poly(p-phenylene) (PPP) was chemically synthesized via the oxidative polymerization of benzene and doped with FeCl3. Electrical conductivity response of doped PPP (dPPP) towards CO, H2 and NH3 was investigated. dPPP shows no response towards CO and H2, but it shows a definite negative response to NH3. The electrical conductivity sensitivity of dPPP increases with increasing NH3 concentration. In order to improve sensitivity of the sensor, ZSM-5 zeolite is added into the conductive polymer matrix. The sensitivity of the sensor increases with increasing zeolite content up to 30%. Moreover, the effect of cation type residing in the zeolite pore is investigated: including Na+, K+, NH4+ and H+. The electrical conductivity sensitivity of the composites with different cations in the zeolite can be arranged in this order; 50:1 dPPP(90)/KZ23 <50:1 dPPP<50:1 dPPP(90)/NaZ23<50:1 dPPP(90)/NH4Z23<50:1 dPPP(90)/HZ23. The variation in sensitivity with cation type can be described in term of the acid-base interaction. The 50:1 dPPP(90)/HZ23 possesses the highest sensitivity of -0.36 since H+ has the highest acidity which induces more favorable NH3 adsorption and interaction with the conductive polymer.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
