Enhanced gas selectivity induced by surface active oxygen in SnO/SnO2 heterojunction structures at different temperatures
文献类型：期刊论文
| 作者 | Yin Guilin; Sun Jianwu; Zhang Fang; Yu Weiwei; Peng Fang; sun yan; Chen Xin; Xu Lei; Lu Jing; Luo Chao |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2019 |
| 卷号 | 9期号:4页码:1903-1908 |
| 关键词 | P-N HETEROJUNCTIONS SENSING PERFORMANCE SNO2 NANORODS HETEROSTRUCTURE SENSOR MICROSTRUCTURES NANOCRYSTALS NANOSPHERES FABRICATION NANOFIBERS |
| DOI | 10.1039/c8ra09965k |
| 英文摘要 | The development of heterojunction structures has been considered as an important step for sensing materials. In this report, 3D hierarchical SnO-SnO2 heterojunction structures were synthesized and developed via simple one-pot hydrothermal synthesis without any extra processes. The prepared 3D samples exhibit high sensitivity, benefiting from the synergistic effects of SnO and SnO2. Interestingly, SnO-SnO2 hybrid structures exhibited distinctly different sensitivities at 180 and 280 degrees C, and the sensitivity can achieve values of 47.69 and 41.56 toward ethanol and acetone, respectively, at concentrations of 100 ppm. A mechanistic analysis of the sensitivity and concentration-dependence revealed that the oxygen species on the surface were O- and O2- at different temperatures. Therefore, the temperature selectivity of the sample may be due to the different activities of the active oxygen species. Moreover, the composition also shows excellent stability at operating temperatures. The high sensing sensitivity and selectivity is promising for practical VOC gas detection; this also offers a new perspective for the design of multifunctional sensing materials. |
| WOS记录号 | WOS:000457783900018 |
| 源URL | [http://202.127.2.71:8080/handle/181331/12396]  |
| 专题 | 上海技术物理研究所_上海技物所 |
| 推荐引用方式 GB/T 7714 | Yin Guilin,Sun Jianwu,Zhang Fang,et al. Enhanced gas selectivity induced by surface active oxygen in SnO/SnO2 heterojunction structures at different temperatures[J]. RSC ADVANCES,2019,9(4):1903-1908. |
| APA | Yin Guilin.,Sun Jianwu.,Zhang Fang.,Yu Weiwei.,Peng Fang.,...&He Dannong.(2019).Enhanced gas selectivity induced by surface active oxygen in SnO/SnO2 heterojunction structures at different temperatures.RSC ADVANCES,9(4),1903-1908. |
| MLA | Yin Guilin,et al."Enhanced gas selectivity induced by surface active oxygen in SnO/SnO2 heterojunction structures at different temperatures".RSC ADVANCES 9.4(2019):1903-1908. |
入库方式： OAI收割
来源：上海技术物理研究所
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