Dynamics of NO reduction by H2 on Rh(111): Velocity and angular distributions of the N2 product
Dynamics of NO reduction by H2 on Rh(111): Velocity and angular distributions of the N2 product
复制标题
Rh(111) 上 H2 还原 NO 的动力学：N2 产品的速度和角度分布
DOI：
10.1063/1.471349
复制
发表时间：
1996
影响因子：
4.4
通讯作者：
S. Sibener
中科院分区：
文献类型：
--
作者：
J. Colonell;K. Gibson;S. Sibener
在低氮覆盖度范围内，测量了Rh（111）表面上H_2还原NO生成N_2的速度和角分布随表面温度的变化。角和速度分布都很好地拟合双峰形式。高能量通道的平均平移能量约为预期在表面温度下容纳的分子的6倍，具有异常尖锐的角分布和依赖于角度的速度分布。低能量通道也是超热的，平均平移能量约为热能量的两倍，呈余弦角分布，速度分布与角度无关。对数据进行的统计分析表明，高能通道的特征可能在于对法向速度和总能量的约束;低能通道的特征可能在于对速度的单一约束。
The velocity and angular distributions of N2 produced from the reduction of NO by H2 on Rh(111) have been measured in the low nitrogen coverage limit as a function of surface temperature. Both the angular and velocity distributions are well fit by bimodal forms. The high energy channel has average translational energies about six times that expected for molecules accommodated at the surface temperature, an unusually sharp angular distribution, and angle dependent velocity distributions. The low energy channel is also hyperthermal, with average translational energies about twice thermal, a cosine angular distribution, and velocity distributions which are independent of angle. Application of surprisal analysis to the data shows that the high energy channel may be characterized by constraints on the normal velocity and the total energy; the low energy channel may be characterized by a single constraint on the velocity.
T.Matsushima：“钯(110) 和重建铂(110)(1×2) 表面上一氧化碳氧化过程中产物解吸的空间和速度分布”表面科学(1993)。
DOI：
--
发表时间：
--
期刊：
影响因子：
--
作者：
通讯作者：
--