中文摘要：

利用发射光谱原位技术对旋转电极辉光等离子体作用下CH4-H2转化反应进行诊断研究,在300~700 nm波长范围内检测到了C,CH,C2,H和H2等激发态物种的发射谱线。利用H原子发射光谱,通过Boltzmann图解法计算了等离子体的激发温度,该激发温度在6 300~6 600 K之间。同时由谱线展宽计算了电子密度,其数量级在1020m-3。

英文摘要：

Optical emission spectroscopy（OES） was adopted for the first time by our group for in situ diagnosis of the conversion of CH4-H2 under glow discharge plasma at atmospheric pressure with rotary electrodes.The emission of excited species such as excited radicals and atoms（C,CH,C2,H and H2） was detected in the spectra range of 300-700 nm.The spectrum of hydrogen atom was used to figure out the plasma excitation temperature by a Boltzmann plot scheme.It was evaluated that the excitation temperature of hydrogen plasmas under varied discharge conditions is in the range of 6 300-6 600 K.The electron density was calculated based on spectral profile of H lines and its order is about 1020 m-3.