کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146737 1497375 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micro-contacted self-assembled tungsten oxide nanorods for hydrogen gas sensing
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Micro-contacted self-assembled tungsten oxide nanorods for hydrogen gas sensing
چکیده انگلیسی
Electron beam lithography was used to fabricate platinum μ-contacts over tungsten oxide nanorods formed on a mica substrate. This made possible the measurement of sensorial response of these self-assembled tungsten oxide nanorods to hydrogen gas for the first time. The nanorods were prepared by thermal evaporation from an oxide source. Consequently, two types of conductometric sensors were assembled: a) percolating network of nanorods and b) set of individually contacted WO3 nanorods. The preparation procedures are described in detail and the comparison of response of both types of assemblies is given. The first sensorial measurements revealed a good response of the b) type of sensor and the minimum repeatedly detected concentration of H2 was 50 ppm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 2, 12 January 2017, Pages 1344-1352
نویسندگان
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