CAJ | 학술논문

以低温水热法制备了TiO2－SnO2复合纳米晶粒，采用提拉法涂敷于带有金电极的氧化铝陶瓷管表面形成敏感薄膜，设计了一种新型的薄膜式氨气传感器。在气体传感器静态测试装置上，测试了氨气传感器敏感特性、温度特性、动态响应、抗干扰和湿度特性。结果表明，以TS6为敏感薄膜的氨气传感器灵敏度为96.3％，动态响应时间为12 s，恢复时间分别为18 s。在汽车上连续使用12个月，响应衰减了6.8％，响应正常时间为6.3个月。表明了以TS6为敏感薄膜的氨气传感器可用于汽车选择性催化还原（ SCR）系统氨气泄露在线检测。
이저온수열법제비료TiO2－SnO2복합납미정립，채용제랍법도부우대유금전겁적양화려도자관표면형성민감박막，설계료일충신형적박막식안기전감기。재기체전감기정태측시장치상，측시료안기전감기민감특성、온도특성、동태향응、항간우화습도특성。결과표명，이TS6위민감박막적안기전감기령민도위96.3％，동태향응시간위12 s，회복시간분별위18 s。재기차상련속사용12개월，향응쇠감료6.8％，향응정상시간위6.3개월。표명료이TS6위민감박막적안기전감기가용우기차선택성최화환원（ SCR）계통안기설로재선검측。
TiO2-SnO2 composite nanocrystalline of ammonia gas sensor were prepared by the low temperature hydrothermal method.A new film-type ammonia gas sensor was designed with TiO 2-SnO2 composite nanocrystallines transferred onto an alumina ceramic tube with Au electrodes by dip-coating method .These characteristic tests of ammonia gas sensors were carried out on the traits of sensitive performance ,dynamic response ,interference and stability in gas sensor static test system .The conclusion was got based on TS6 composite nanocrystalline .It shows that the sensitivity of ammonia gas sensor was 96.3%,the dynamic response time was 12 s,and the recover time was 18 s.The response value of ammonia gas sensor is attenuated about 6.8%,when ammonia gas sensor is applied continually on the automobile about 12 months,and its normal time is 6.3 months.These are ensured that ammo-nia gas sensor based on TS 6 composite nanocrystalline can real-time detect the leaked ammonia concentration on selective catalytic reduction (SCR) system for vehicle.