Abnormal IR effects of Pt nanostructured surfaces upon CO chemisorption due to interaction and electron-hole damping.
The abnormal IR effects (AIREs) characterized by a positive-going peak of platinum (Pt) nanostructured surface generated in a square-wave potential treatment upon CO molecule chemisorption was observed and analyzed with a consideration of the interparticle interaction and electron-hole damping between nanoislands and CO molecules. A theoretical simulation shows that the islanded nanostructured Pt surfaces, which gives rise to interparticle interaction, coupling with electron-hole mechanism, may contribute to the origins of positive-going peak (AIREs) observed by in situ Fourier transformation IR (FTIR) experiments.
Wu
Chen-Xu
CX
Soft Condensed Matter Lab, Department of Physics, Xiamen University, Xiamen 361005, People's Republic of China. sgsun@xmu.edu.cn
Lin
Hai
H
Chen
You-Jiang
YJ
Li
Wen-Xuan
WX
Sun
Shi-Gang
SG