| Title: | Unveiling the Electronic Interaction in ZnO/PtO/Pt Nanoarrays for Catalytic Detection of Triethylamine with Ultrahigh Sensitivity |
| Author(s): | Zheng L; Xie J; Liu X; Yang C; Zheng W; Zhang J; |
| Address: | "College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "The detection of harmful volatile organic compounds is of great significance to environmental quality and human health. However, it still remains a challenge to achieve high detection sensitivity at a relatively low temperature. Herein, an ultrasensitive catalytic sensor for the detection of triethylamine (TEA) based on ZnO/PtO/Pt nanoarray thin films was realized. Sensor measurements reveal that the PtO/Pt sensitizer dramatically reduces the working temperature from 195 degrees C of a pristine ZnO sensor to 125 degrees C of ZnO/PtO/Pt sensors. The ZnO/PtO/Pt sensors exhibit an extremely high response of 3513 to 50 ppm TEA, which is three orders of magnitude higher than that of pristine ZnO. Meanwhile, an ultralow limit of detection of 8.3 ppb is achieved. The outstanding performances are superior to those in most previous reports on TEA detection. Mechanistic investigations reveal that the outstanding performances are ascribed to the strong electronic interaction between PtO and ZnO and the catalytic spillover effect of Pt" |
| Keywords: | electronic sensitization gas sensor nanocatalysts platinum volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEZheng, Lingli Xie, Jiayue Liu, Xianghong Yang, Chen Zheng, Wei Zhang, Jun eng 2020/09/16 ACS Appl Mater Interfaces. 2020 Oct 14; 12(41):46267-46276. doi: 10.1021/acsami.0c09130. Epub 2020 Oct 1" |
