【作者】 刘华俊； 杜娟；

【Author】 Huajun Liu Juan Du (School of Chemical Engineering and Fool science,Xiangfan University,Xiangfan,441053,China)

【机构】 襄樊学院化学工程与食品科学学院；

【摘要】 用Ni（Ac）₂4H₂O、CH₃OH、Cu（CH₃OO O₃）₂、乙酰丙酮作原料,使Ni（Ac）₂2H₂O在CH₃OH中水解得到铜掺杂的Ni（OH）₂溶胶。通过旋涂法制得铜掺杂的Ni（OH）₂薄膜,在400℃煅烧得到铜掺杂的NiO薄膜,并用XRD、HRTEM等检测手段表征了膜的结构,同时研究了它的气敏特性,实验结果发现铜掺杂提高了NiO气敏薄膜元件检测甲醛的灵敏度和选择性,同时降低了检测工作温度。更多还原

【Abstract】 NiO and Cu doped NiO nanometer thin films are prepared by sol-gel method from Ni（Ac）₂·4H₂O、CH₃OH、Copper acetate and acetylacetone.The gas-sensing properties of NiO and Cu doped NiO nanometer thin films are studied.The results of gas sensitivity tests show that Cu doping can improve selectivity and sensitivity of NiO nanometer thin films to HCHO,and causes its working temperature for determining HCHO to decrease.更多还原