Determination of Copper(I) and Copper(II) Oxides on a Copper Powder Surface by Diffuse Reflectance Infrared Fourier Transform Spectrometry
Determination of Copper(I) and Copper(II) Oxides on a Copper Powder Surface by Diffuse Reflectance Infrared Fourier Transform Spectrometry
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漫反射红外傅里叶变换光谱法测定铜粉表面的铜(I)和铜(II)氧化物
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发表时间：
1990
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通讯作者：
T. Ishizuka
中科院分区：
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作者：
A. Tsuge;Y. Uwamino;T. Ishizuka
采用漫反射红外傅里叶变换(DRIFT)光谱法测定铜粉中的CU_2O和CuO。在氧化铜粉的DRIFT谱中观察到Cu_2O峰（640 cm^−1）和CuO肩峰（580-400 cm^−1）。峰高（640 和 520 cm^1）与氧化铜（Cu_2O 和 CuO）浓度之间的线性关系分别在 0-16 和 0-6 wt% 的浓度范围内获得。用三种尺寸分类的粉末构建分析曲线。根据分析曲线的斜率，讨论了粉末粒径对光谱的影响。提出了铜粉中CU_2O和CuO的两种测定方法。一种是使用分析曲线的方法。另一种是使用氧浓度和峰高比（640 和 520 cm^−1）的方法。
Diffuse reflectance infrared Fourier transform (DRIFT) spectrometry was applied to the determination of CU_2O and CuO in Cu powders. The peak of Cu_2O (640 cm^−1) and the shoulder of CuO (580–400 cm^−1) were observed in the DRIFT spectrum of oxidized Cu powder. A linear relationship between the peak heights (640 and 520 cm^1) and the concentrations of copper oxide (Cu_2O and CuO) were obtained in concentration ranges of 0–16 and 0–6 wt%, respectively. Analytical curves were constructed with three size-classified powders. From the slopes of the analytical curves, the effect of particle size of the powders on the spectrum is discussed. Two determination methods of CU_2O and CuO in Cu powders are proposed. One is a method which uses the analytical curves. The other is a method which uses the oxygen concentration and the ratio of peak heights (640 and 520 cm^−1).