Enhanced room-temperature ammonia-sensing properties of polyaniline-modified WO3 nanoplates derived via ultrasonic spray process
文献类型：期刊论文
| 作者 | Fan, GJ; Chen, DL; Li, T; Yi, SS; Ji, HP; Wang, Y; Zhang, ZT; Shao, G; Fan, BB; Wang, HL |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2020-06-01 |
| DOI | 10.1016/j.snb.2020.127892 |
| 文献子类 | Article |
| 英文摘要 | Low-temperature detection of ammonia (NH3) is of great significance in environmental control and human health. This paper reports an ultrasonic spray-assisted in-situ polymerization method to grow polyaniline (PANI) on the WO3 nanoplates derived by an intercalation-exfoliation process. The as-obtained WO3 @PANI (UWP-x) nanocomposites were designed with various aniline/WO3 molar ratios (x). The characterization analyses of chemical compositions and microstructure using XRD, XPS, FT-IR, SEM and TEM indicate that the WO3 @PANI samples consist of single-crystal WO3 nanoplates anchored with PANI nanoparticles. The NH3-sensing behaviors of the WO3@PANI nanocomposites were systematically evaluated. The WO3@PANI nanocomposites show higher NH3 -sensing performance than the WO3 nanoplates or PANI nanocrystals under same operating conditions. The optimized sample of UWP-2.5 is obviously sensitive to 0.5 ppm NH3, and exhibits a high response of 34 upon exposure to 100 ppm NH3 at room temperature with high stability and selectivity. Control experiments indicated that the ultrasonic spray process has played a vital role in forming PANI/WO3 nanocomposites with high NH3-sensing performance. Due to the proper anchoring and positive synergistic effect of PANI andWO(3) species, the newly-developed ultrasonic spray-assisted in-situ polymerization method provides a facile way to achieve high-performance room-temperature NH3-sensing materials. |
| WOS关键词 | NANOCOMPOSITE THIN-FILM ; CONDUCTING FILMS ; SENSOR ; GAS ; NH3 ; PERFORMANCE ; NANOSTRUCTURES ; SENSITIVITY ; EFFICIENT ; GRAPHENE |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28033]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Fan, GJ,Chen, DL,Li, T,et al. Enhanced room-temperature ammonia-sensing properties of polyaniline-modified WO3 nanoplates derived via ultrasonic spray process[J]. SENSORS AND ACTUATORS B-CHEMICAL,2020. |
| APA | Fan, GJ.,Chen, DL.,Li, T.,Yi, SS.,Ji, HP.,...&Sun, J.(2020).Enhanced room-temperature ammonia-sensing properties of polyaniline-modified WO3 nanoplates derived via ultrasonic spray process.SENSORS AND ACTUATORS B-CHEMICAL. |
| MLA | Fan, GJ,et al."Enhanced room-temperature ammonia-sensing properties of polyaniline-modified WO3 nanoplates derived via ultrasonic spray process".SENSORS AND ACTUATORS B-CHEMICAL (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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