{"title":"传感缺电子芳烃的冠烯纳米/微线","authors":"Hong Wang, Xiaohe Xu, H. Ji","doi":"10.4081/ND.2012.E1","DOIUrl":null,"url":null,"abstract":"We report the synthesis, characterization, and application of coronene nano/microwires for sensing electron-deficient aromatics. The coronene nano/microwires were prepared by a vapor deposition method. The nano /microwires were approximately 300 nm in diameter and 3-5 mm long. ATR-IR spectroscopy and TG/DTA showed that coronene remains intact and does not undergo polymerization or decomposition during the vapor deposition. Cross-optical polarized microscopy showed a birefringent crystal structure of the coronene microwires. Fluorescent imaging showed that the crystalline coronene nano/microwires can be used as waveguide material. Both the conductivity and fluorescence of the crystalline nano/microwires change selectively in the presence of nitrobenzene vapor, a representative nitroaromatic. This suggests that the coronene nano/ microwires may be used for selective detection of explosives since many explosives belong to a group of electron-deficient nitroaromatics.","PeriodicalId":184845,"journal":{"name":"Nanotechnology Development","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Nano/microwires of coronene for sensing electron-deficient aromatics\",\"authors\":\"Hong Wang, Xiaohe Xu, H. Ji\",\"doi\":\"10.4081/ND.2012.E1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report the synthesis, characterization, and application of coronene nano/microwires for sensing electron-deficient aromatics. The coronene nano/microwires were prepared by a vapor deposition method. The nano /microwires were approximately 300 nm in diameter and 3-5 mm long. ATR-IR spectroscopy and TG/DTA showed that coronene remains intact and does not undergo polymerization or decomposition during the vapor deposition. Cross-optical polarized microscopy showed a birefringent crystal structure of the coronene microwires. Fluorescent imaging showed that the crystalline coronene nano/microwires can be used as waveguide material. Both the conductivity and fluorescence of the crystalline nano/microwires change selectively in the presence of nitrobenzene vapor, a representative nitroaromatic. This suggests that the coronene nano/ microwires may be used for selective detection of explosives since many explosives belong to a group of electron-deficient nitroaromatics.\",\"PeriodicalId\":184845,\"journal\":{\"name\":\"Nanotechnology Development\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-12-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanotechnology Development\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4081/ND.2012.E1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnology Development","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4081/ND.2012.E1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Nano/microwires of coronene for sensing electron-deficient aromatics
We report the synthesis, characterization, and application of coronene nano/microwires for sensing electron-deficient aromatics. The coronene nano/microwires were prepared by a vapor deposition method. The nano /microwires were approximately 300 nm in diameter and 3-5 mm long. ATR-IR spectroscopy and TG/DTA showed that coronene remains intact and does not undergo polymerization or decomposition during the vapor deposition. Cross-optical polarized microscopy showed a birefringent crystal structure of the coronene microwires. Fluorescent imaging showed that the crystalline coronene nano/microwires can be used as waveguide material. Both the conductivity and fluorescence of the crystalline nano/microwires change selectively in the presence of nitrobenzene vapor, a representative nitroaromatic. This suggests that the coronene nano/ microwires may be used for selective detection of explosives since many explosives belong to a group of electron-deficient nitroaromatics.