Vitamin C-assisted synthesis and gas sensing properties of coaxial In₂O₃ nanorod bundles

详细信息    查看全文

• 作者：Xiaowei LiAuthor Vitae ; Shiting YaoAuthor Vitae ; Jiangyang LiuAuthor Vitae ; Peng Sun ; ^{spmaster2008@163.com" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Yanfeng SunAuthor Vitae ; Yuan GaoAuthor Vitae ; Geyu Lu ; ^{lugy@jlu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Gas sensor ; NO2 ; Microwave hydrothermal ; In2O3 ; Nanorod bundles
• 刊名：Sensors & Actuators: B. Chemical
• 出版年：2015
• 出版时间：1 December 2015
• 年：2015
• 卷：220
• 期：Complete
• 页码：68-74
• 全文大小：2208 K

文摘

In₂O₃ nanorod bundles with well-designed morphology, hierarchical nanostructure and large specific surface area were quickly prepared via microwave hydrothermal method in the presence of vitamin C. The observations of field emission electron microscopy and transmission electron microscopy revealed that the as-prepared In₂O₃ samples were constructed from lots of well-aligned nanorods with average diameter of about 50 nm. To demonstrate their potential application in detecting harmful gases, these bundle-like In₂O₃ samples were applied to fabricate gas sensor and their sensing properties were examined. It was found that the sensors based on such novel In₂O₃ nanorod bundles exhibited high response and excellent selectivity during detecting NO₂ gas at the operating temperature of 100 °C.