Surfactant-free Hydrothermal Synthesis and Sensitivity Characterization of Pd-doped SnO2 Nano Crystals on Multiwalled Carbon Nanotubes
文献类型：会议论文
| 作者 | Tan, Ruiqin; Guo, Yanqun; Shen, Wenfeng; Jiang, Kemin; Xu, Tiefeng; Song, Weijie |
| 出版日期 | 2012 |
| 会议日期 | DEC 05-08, 2011 |
| 关键词 | GAS COMPOSITE SENSOR NANOCRYSTALS PALLADIUM GROWTH ANODE |
| 卷号 | 8409 |
| DOI | 10.1117/12.923814 |
| 英文摘要 | In the present study, a simple approach has been presented to in situ deposition of Pd-doped well-crystallized SnO2 nanocrystals on the surface of multiwalled carbon nanotubes (MWCNTs) in the ethanol solution of SnCl2. The morphology, microstructure and surface chemistry of the as-prepared nanocomposites were characterized by high resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. The HRTEM and XRD results show that the well-crystallized SnO2 nanocrystals with uniform crystal size (about 5 nm) tightly and homogenously coat on the entire surface of the MWCNTs. The carboxylic function groups on the MWCNTs surface may supply nucleation sites for facilitating the in situ deposition of SnO2 nanocrystals. The XPS results reveal that the chemical states of the nanocomposites and the dopant of Pd mainly exists in two chemical states as Pd2+ and Pd4+. The response of the 2.5 at% Pd-doped SnO2/MWCNTs nanocomposites to 1000 ppm NO at the temperature of 250 degrees C behaviors better, whose response time is about 70 s and the sensitivity is about 4.62. |
| 会议录出版者 | Proceedings of SPIE |
| 学科主题 | Engineering ; Science & Technology - Other Topics ; Materials Science ; Optics |
| ISSN号 | 0277-786X |
| ISBN号 | 978-0-8194-9087-2 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23654]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Tan, Ruiqin,Guo, Yanqun,Shen, Wenfeng,et al. Surfactant-free Hydrothermal Synthesis and Sensitivity Characterization of Pd-doped SnO2 Nano Crystals on Multiwalled Carbon Nanotubes[C]. 见:. DEC 05-08, 2011. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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