کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
222544 464276 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile synthesis of hexagonal brick-shaped SnO2 and its gas sensing toward triethylamine
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Facile synthesis of hexagonal brick-shaped SnO2 and its gas sensing toward triethylamine
چکیده انگلیسی


• Hexagonal brick-shaped SnO2 (HBSS) was synthesized by using o-phthalic acid.
• Well-dispersed HBSS exhibits a good selectivity and response to triethylamine.
• HBSS is an efficient material for detecting low-concentration amine gases.

Nanosized tin dioxide was synthesized by one-step method using o-phthalic acid and tin tetrachloride as raw materials. The morphology and structure were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The gas-sensing properties of as-synthesized SnO2 were also investigated. The as-synthesized SnO2 shows hexagonal brick-like shape and its size is about 50 nm. The hexagonal brick-shaped SnO2 (HBSS) exhibits high sensitivity and selectivity to low-concentration triethylamine (TEA) at low operating temperature. The maximum response of the well-dispersed HBSS to 1 ppm and 100 ppm TEA is 3 and 70, respectively. The response and recovery time upon exposure to 1 ppm TEA is 3 s and 9 s, respectively, which suggests that the well-dispersed HBSS is an efficient sensor material for detecting low-concentration triethylamine gas.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 1, Issue 4, December 2013, Pages 1380–1384
نویسندگان
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