Picosecond study of the population lifetime of CO(v=1) chemisorbed on SiO2‐supported rhodium particles
Picosecond study of the population lifetime of CO(v=1) chemisorbed on SiO2‐supported rhodium particles
复制标题
SiO2 负载的铑颗粒化学吸附 CO(v=1) 的群体寿命的皮秒研究
DOI：
10.1063/1.455626
复制
发表时间：
1988
影响因子：
4.4
通讯作者：
J. Stephenson
中科院分区：
文献类型：
--
作者：
E. Heilweil;R. Cavanagh;J. Stephenson
激发态寿命的红外泵浦-探针表征表明，CO 与孤立金属位点 (T1=140±20 ps) 结合的持续时间比观察到的 CO 与直径约 35 A 的金属颗粒 (≤18 ps) 结合的信号持续时间更长，这表明较大金属颗粒中存在电子-空穴激发。
Infrared pump–probe characterization of the excited state lifetimes reveals that CO bound to isolated metal sites (T1=140±20 ps) persists longer than the signal observed for CO bound to ≈35 A diameter metal particles (≤18 ps), suggesting paticipation of electron–hole excitations in the larger metal particles.