Absence of platinum enhancement of a photoreaction on TiO2-CO photooxidation on Pt/TiO2(110)

被引:82
作者
Linsebigler, A [1 ]
Rusu, C [1 ]
Yates, JT [1 ]
机构
[1] UNIV PITTSBURGH,DEPT CHEM,CTR SURFACE SCI,PITTSBURGH,PA 15260
关键词
D O I
10.1021/ja953601c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The influence of deposited Pt metal clusters on the CO photooxidation reaction on the TiO2(110) surface was investigated. An enhancement in the CO photooxidation reaction rate or yield is not observed in the presence of Pt metal clusters on the TiO2(110) surface. These results indicate that kinetic models involving Schottky-barrier electron trapping in metal deposits leading to enhanced electron-hole pair lifetimes are not applicable in the case of CO photooxidation on Pt/TiO2(110).
引用
收藏
页码:5284 / 5289
页数:6
相关论文
共 34 条
[1]   ELECTRON-ENERGY LOSS SPECTROSCOPIC STUDY OF CO ON PT(111) [J].
AVERY, NR .
JOURNAL OF CHEMICAL PHYSICS, 1981, 74 (07) :4202-4203
[2]   THIN-FILM MODELS OF STRONG METAL SUPPORT INTERACTION CATALYSTS - PLATINUM ON OXIDIZED TITANIUM [J].
BELTON, DN ;
SUN, YM ;
WHITE, JM .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (09) :1690-1695
[3]   METHODS IN SEMICONDUCTOR SURFACE-CHEMISTRY [J].
BOZACK, MJ ;
MUEHLHOFF, L ;
RUSSELL, JN ;
CHOYKE, WJ ;
YATES, JT .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1987, 5 (01) :1-8
[4]   DESIGN CONSIDERATIONS FOR SIMPLE GAS DOSERS IN SURFACE SCIENCE APPLICATIONS [J].
CAMPBELL, CT ;
VALONE, SM .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1985, 3 (02) :408-411
[5]   HETEROGENEOUS PHOTOCATALYSIS [J].
FOX, MA ;
DULAY, MT .
CHEMICAL REVIEWS, 1993, 93 (01) :341-357
[6]   INTRINSIC DEFECTS OF TIO2(110) - INTERACTION WITH CHEMISORBED O2, H-2, CO, AND CO2 [J].
GOPEL, W ;
ROCKER, G ;
FEIERABEND, R .
PHYSICAL REVIEW B, 1983, 28 (06) :3427-3438
[7]  
GOPEL W, 1984, SURF SCI, V139, P133
[8]  
Gratzel M, 1989, HETEROGENEOUS PHOTOC
[9]   PHOTOLYSIS OF CHEMISORBED DIOXYGEN ON PD(111) - DEPENDENCE ON PHOTON ENERGY [J].
HANLEY, L ;
GUO, XC ;
YATES, JT .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (11) :7220-7227
[10]   HETEROGENEOUS PHOTOCATALYTIC OXIDATION OF HYDROCARBONS ON PLATINIZED TIO2 POWDERS [J].
IZUMI, I ;
DUNN, WW ;
WILBOURN, KO ;
FAN, FRF ;
BARD, AJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1980, 84 (24) :3207-3210