ZnO Nanorods Synthesized in Large-scale via Sonochemical Method and its Sensing Potential Towards Methyl Mercaptan
A novel and simple approach has been developed for a large-scale synthesis of ZnO nanorods using ultrasound radiation. Double-pod-like ZnO nanorods were directly grown from the starting precursors of zinc nitrate hydrate Zn(NO3)26H2O and hexamethylene tetramine (HMT) in deionized water without any templates or seeds. The obtained double-pod-like product had a diameter ranging from 80 to 150 nm and length ranging from 1 to 5 um. Scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscope (TEM) revealed that these products are of high purity, hexagonal and of single-crystalline structure. The ZnO nanorods synthesized were utilized for gas sensing application. Alumina plate consists of Pt interdigitated electrode was used as sensor substrate. The as-prepared products were transferred to the surface of substrate by screen printing method to fabricate the gas sensor. The sensing properties of the sensor were investigated toward methyl mercaptan (CH3SH). The sensor shows good and fast response towards methyl mercaptan at a fixed operating temperature. The high sensitivity may be ascribed to the high surface area and aspect ration of the double-pod-like nanomaterial.
ZnO nanorod sonochemical double-pod-like gas sensing methyl mercaptan
Shao-Lin Zhang Sun-Min Park Jun-Boo Yu Jeung-Soo Huh
Department of Sensor and Display Engineering Kyungpook National University, San-Gyuk dong 1370, Pook Department of Nano-Science and Technology Kyungpook National University, San-Gyuk dong 1370, Pook-gu Department of Materials Science and Metallurgy Kyungpook National University, San-Gyuk dong 1370, Po Department of Sensor and Display Engineering, Kyungpook National University, San-Gyuk dong 1370, Poo
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
493-496
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）