Design of Superior Ethanol Gas Sensor Based on Al-Doped NiO Nanorod-Flowers

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• 作者：Chen Wang ; Xiaobiao Cui ; Jiangyang Liu ; Xin Zhou ; Xiaoyang Cheng ; Peng Sun ; Xiaolong Hu ; Xiaowei Li ; Jie Zheng ; Geyu Lu
• 刊名：ACS Sensor
• 出版年：2016
• 出版时间：February 26, 2016
• 年：2016
• 卷：1
• 期：2
• 页码：131-136
• 全文大小：557K
• ISSN：2379-3694

文摘

The pure and Al-doped NiO nanorod-flowers with uniform sizes and well-defined morphologies were synthesized for the first time by a facile solvothermal reaction. As the gas sensing materials of MOS gas sensors, their sensing properties were investigated systematically. The results indicated that the 2.15 at% Al-doped NiO nanorod-flowers showed improved gas sensing properties compared to those of pure NiO nanorod-flowers. The incorporation of Al ions with NiO nanocrystals adjusts the carrier concentration, and induces the change of the oxygen deficiency and chemisorbed oxygen of NiO nanorod-flowers. Thus, the doping of Al³⁺ into NiO nanorod-flowers should be a promising method for designing and fabricating the high performance gas sensor.