Kinetic and spectroscopic analysis of NH3 decomposition under R.F. Plasma at moderate pressures
Kinetic and spectroscopic analysis of NH3 decomposition under R.F. Plasma at moderate pressures
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DOI：
10.1007/bf00566373
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发表时间：
1981-03
影响因子：
3.6
通讯作者：
R. D'agostino;F. Cramarossa;S. Benedictis;G. Ferraro
中科院分区：
文献类型：
--
作者：
R. D'agostino;F. Cramarossa;S. Benedictis;G. Ferraro
NH3的等离子体分解已被研究作为停留时间，功率输入，和压力的函数。该过程遵循明显的零级动力学，这可以解释的基础上的动力学机制，涉及作为初始步骤的N-H键的断裂从振动旋转激发modecules。电子激发态NH 2、NH、H和N2的发射光的同时光谱观测已被用来证实所提出的机理，并表明NH 2和NH是连续的中间物种，分解过程的最后一步是双分子复合NH+NH→N2+H2。
The plasma decomposition of NH3has been studied as a function of the residence time, power input, and pressure. The process follows apparently zero-order kinetics, which can be interpreted on the basis of a kinetic mechanism involving as initial step the rupture of an N-H bond from vibro-rotationally excited modecules. Simultaneous spectroscopic observations of the emission light due to electronically excited NH2, NH, H, and N2have been used to confirm the suggested mechanism and to show that NH2and NH are successive intermediate species and that the final step of the decomposition process is the bimolecular recombination NH+NH→N2+H2.