CAJ | 학술논문

以硝酸锌、氢氧化钠为原料，通过水热/煅烧法制备结构新颖的厚度在20 nm至40 nm之间的钌掺杂花瓣状氧化锌纳米片。采用粉末X射线衍射仪、场发射扫描电镜、氮气吸附法、气敏测试系统对产物进行物相、结构形貌、比表面积、气敏性能等的表征。结果表明，钌掺杂氧化锌纳米片对乙醇和丙酮气体的灵敏度高，探测浓度低，响应和恢复迅速。在360°C和100×10-6的条件下，对乙醇和丙酮的灵敏度分别达到33和67。在10×10-6的乙醇和丙酮气体中，其响应和恢复速度分别为4 s和9 s，3 s和10 s.
이초산자、경양화납위원료，통과수열/단소법제비결구신영적후도재20 nm지40 nm지간적조참잡화판상양화자납미편。채용분말X사선연사의、장발사소묘전경、담기흡부법、기민측시계통대산물진행물상、결구형모、비표면적、기민성능등적표정。결과표명，조참잡양화자납미편대을순화병동기체적령민도고，탐측농도저，향응화회복신속。재360°C화100×10-6적조건하，대을순화병동적령민도분별체도33화67。재10×10-6적을순화병동기체중，기향응화회복속도분별위4 s화9 s，3 s화10 s.
Petal-like ZnO nanosheets were synthesized with zinc nitrate hexahydrate and sodium hydroxide as starting materials in ammonia and ethanol mixture solution. RuO2 modified ZnO nanosheets were also prepared by a calcination route. The as-prepared products were characterized by X-ray powder diffraction and field emission scanning electron microscopy, and its specific BET surface area was calculated by nitrogen adsorption method. The sensitivity, response and recovery speed were examined. The results show that RuO2 modified petal-like ZnO based sensor exhibits a high sensitivity, a low detection limit, fast response and recovery properties to ethanol and acetone. The sensitivities of the RuO 2 modified petal-like ZnO based sensor to 100×10-6 ethanol and acetone at 360 °C are 33 and 67, respectively. The response and recovery times of the sensor are 4 s and 9 s to 10×10-6 ethanol, and are 3 s and 10 s to 10×10-6 acetone, respectively.