التفاصيل البيبلوغرافية
| العنوان: |
Electrospinning SnO2 fibers with 3D interconnected structure for efficient soot catalytic combustion. |
| المؤلفون: |
Zhu, Silun, Shi, Shuying, Xie, Yongshuai, Xu, Chonghe, Zhang, Xiaoqian, Peng, Ying, Wang, Xinqiang, Yu, Gang, Zhu, Luyi, Zhang, Guanghui, Xu, Dong |
| المصدر: |
Journal of Materials Science; Dec2020, Vol. 55 Issue 34, p16083-16095, 13p, 2 Color Photographs, 2 Diagrams, 3 Charts, 8 Graphs |
| مصطلحات موضوعية: |
SOOT, COMBUSTION, FIBERS, CHEMICAL stability, ELECTROSPINNING |
| مستخلص: |
In this paper, SnO2 fibers with three-dimensional (3D) interconnected structure were successfully obtained by a simple electrospinning technique with both high quality and reproducibility. The microstructure, physicochemical properties were characterized (FT-IR, XRD, SEM, HR-TEM, TG-DSC, N2-BET, XPS, H2-TPR, O2-TPD) extensively. The catalytic activity was tested in temperature-programmed oxidation (TPO) of model soot. The influence of the heat-treated temperature on the catalysts physicochemical properties and reactivity was evaluated. The fibers were fluffy and self-supporting after heat-treated which could provide a beneficial environment favored by soot catalytic combustion. SnO2 fibers exhibited good thermal stability in phase structures and morphologies at least 900 °C. The SnF-500 exhibited the highest catalytic activity with T10, T50 and T90 at 410 °C, 450 °C and 474 °C. With the increase in the sintering temperature, the crystallinity of SnO2 fiber increases and the Sn–O-Sn bond strengthens, resulting in a decrease in the catalytic activity of the catalyst as the BET surface area and surface oxygen decrease. Our studies provide insights into SnO2 fibers for soot catalytic. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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