کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1462622 989636 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication and CO gas-sensing properties of Pt-functionalized Ga2O3 nanowires
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Fabrication and CO gas-sensing properties of Pt-functionalized Ga2O3 nanowires
چکیده انگلیسی

Ga2O3 one-dimensional (1D) nanostructures were synthesized using an evaporation technique. The morphology, crystal structure and enhanced sensing properties of the Ga2O3 nanostructures functionalized with Pt to CO gas at 100 °C were examined. The diameter and lengths of the 1D nanostructures ranged from a few tens to a few hundreds of nanometers and up to a few hundreds of micrometers, respectively. Pt nanoparticles with diameters of a few tens of nanometers were distributed over the Ga2O3 nanowires. Multiple networked gas sensors fabricated from these Pt-functionalized Ga2O3 nanowires exhibited enhanced electrical responses to CO gas. The responses of the nanowires were improved 27.8, 26.1, 22.0 and 16.9 fold at CO concentrations of 10, 25, 50, and 100 ppm, respectively, Compared to the bare Ga2O3 nanowires. The mechanism responsible for the enhanced gas sensing properties of the Pt-functionalized Ga2O3 nanowires is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 38, Issue 5, July 2012, Pages 3563–3567
نویسندگان
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