writer：Han Jina; Youju Huang; Jiawen Jian*
keywords：nitric oxide
source：期刊
specific source：Sensors and Actuators B 206 (2015) 107–110
Issue time：2015年
Selective sensing of nitric oxide (NO) in exhaust for so far reported exhaust gas sensors, particularly, without any interference from the coexist hydrocarbons (e.g., C3H6) is still a challengeable issue. In this research, Cr2O3 with various microstructures were successfully synthesized via hydrothermal route and used as sensing-electrodes (SEs) for detection of NO at high temperatures. Surprisingly, Cr2O3 with plate-like microstructure demonstrated high selectivity towards NO against C3H6. In addition, the sensing performance of the plate-like Cr2O3 towards NO was found to be unaffected by the change of oxygen concentration at 475 degrees C. (C) 2014 Elsevier B.V. All rights reserved.