کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10625849 989637 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
NO2 gas sensing properties of Au-functionalized porous ZnO nanosheets enhanced by UV irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
NO2 gas sensing properties of Au-functionalized porous ZnO nanosheets enhanced by UV irradiation
چکیده انگلیسی
Porous ZnO nanosheets were synthesized by thermal evaporation. The morphology, crystal structure, and sensing properties of the ZnO nanosheets to NO2 gas at room temperature under UV illumination were examined. Au nanoparticles with diameters of a few tens of nanometers were distributed over the ZnO nanosheets. The responses of the multiple networked nanosheet gas sensors were improved 1.8-3.3 fold by Au functionalization at NO2 concentrations ranging from 1 to 5 ppm. Furthermore, the Au-functionalized ZnO nanosheet gas sensors showed a considerably enhanced response at room temperature under ultraviolet (UV) illumination. In addition, the mechanisms through which the gas sensing properties of ZnO nanosheets are enhanced by Au functionalization and UV irradiation are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8615-8622
نویسندگان
, , , , ,