Designing Nanotextured Vanadium Oxide-Based Macroscopic Fibers: Application as Alcoholic Sensors
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- 作者：Cé ; line M. Leroy ; Marie-France Achard ; Odile Babot ; Nathalie Steunou ; Pascal Massé ; Jacques Livage ; Laurent Binet ; Nicolas Brun ; Ré ; nal Backov
- 刊名：Chemistry of Materials
- 出版年：2007
- 出版时间：August 7, 2007
- 年：2007
- 卷：19
- 期：16
- 页码：3988 - 3999
- 全文大小：991K
- 年卷期：v.19,no.16(August 7, 2007)
- ISSN：1520-5002
文摘
Composite vanadium oxide/PVA/latex macroscopic fibers have been generated by using an extrusionprocess. Specifically, inorganic vanadium oxide fibers enable the detection of 0.1 ppm of ethanol within3-5 s at 42 
C, which is certainly one of the highest sensitivities to date concerning alcohol sensors.More importantly, by varying the starting latex inclusion contents, the shear rates applied during theextrusion process, and the final appliance of a thermal treatment, we were able to segregate each parameterinvolved within the mechanical and sensing properties associated with these as-synthesized fibers, i.e.,the amount of the organic insulator counterpart, the degree of vanadium oxide ribbons alignment, andthe induced porosity reached upon latex removal. Overall, we found out that all the parameters describedabove and involved within the as-synthesized fibers' mechanical and sensing properties are acting withina partitive action mode rather than a cooperative one.
C, which is certainly one of the highest sensitivities to date concerning alcohol sensors.More importantly, by varying the starting latex inclusion contents, the shear rates applied during theextrusion process, and the final appliance of a thermal treatment, we were able to segregate each parameterinvolved within the mechanical and sensing properties associated with these as-synthesized fibers, i.e.,the amount of the organic insulator counterpart, the degree of vanadium oxide ribbons alignment, andthe induced porosity reached upon latex removal. Overall, we found out that all the parameters describedabove and involved within the as-synthesized fibers' mechanical and sensing properties are acting withina partitive action mode rather than a cooperative one.