کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
741570 894253 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on humidity sensing properties based on composite materials of Li-doped mesoporous silica A-SBA-15
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Study on humidity sensing properties based on composite materials of Li-doped mesoporous silica A-SBA-15
چکیده انگلیسی

P-SBA-15 and A-SBA-15 and LiCl-A-SBA-15 (X) were prepared and characterized by IR and XRD. These different characteristic results suggest that these materials have the similar mesoporous structure. The dopant of LiCl improves the pure A-SBA-15 sorption ability to moisture. A resistive-type humidity sensor is fabricated on a ceramic substrate with Ag-Pd interdigital electrodes. The testing results on humidity sensing properties show that the material with 15 wt.% LiCl as a dopant has the best sensing properties to humidity. The discussion on the sensing principle suggests that the protons are the domination carrier in a low humidity range and ions in a high humidity range. The complex impedance plots support this discussion result.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 128, Issue 2, 15 January 2008, Pages 482–487
نویسندگان
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