کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5357051 | 1503655 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Si doping influence on the catalytic performance of Pt/TiO2 mesoporous film catalyst for low-temperature methanol combustion
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Si doping influence on the catalytic performance of Pt/TiO2 mesoporous film catalyst for low-temperature methanol combustion Si doping influence on the catalytic performance of Pt/TiO2 mesoporous film catalyst for low-temperature methanol combustion](/preview/png/5357051.png)
چکیده انگلیسی
A series of Si-doped mesoporous TiO2 thin films with anatase phase were synthesized and used as the supporters of Pt catalyst for low-temperature catalytic combustion of gaseous methanol. The introduced Pt ions were processed by a simple photo-reduction method. The catalytic performance of thin film catalysts with different Si doping content were measured by gas chromatography method. It was found that the catalytic performance of Pt/TiO2 can be improved a lot by Si doping and the optimized value of Si/Ti ratio is 0.1. At this point, Pt/TiO2 exhibited the best catalytic activity towards methanol combustion reaching up to 92.8% at 100 °C. This conversion rate was 13.2% higher than that of the catalyst without doping. Moreover, the mechanism for Si affecting on the catalytic performance was proposed based on the XRD, FT-IR, SEM, TEM, N2 adsorption-desorption and XPS characterizations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 309, 1 August 2014, Pages 144-152
Journal: Applied Surface Science - Volume 309, 1 August 2014, Pages 144-152
نویسندگان
Zhangzhang Zheng, Xiaohong Wang, Jun Liu, Jinhua Xiao, Zhiyu Hu,