Influence of subsurface, charged impurities on the adsorption of chlorine at TiO2(110)

被引:21
作者
Batzill, M [1 ]
Hebenstreit, ELD [1 ]
Hebenstreit, W [1 ]
Diebold, U [1 ]
机构
[1] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA
基金
美国国家科学基金会; 美国国家航空航天局;
关键词
D O I
10.1016/S0009-2614(02)01635-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Adsorption of chlorine on TiO2(110) surfaces modified by subsurface impurity atoms was studied by scanning tunneling microscopy. Adsorption was found to be suppressed in the vicinity of positively charged subsurface donor atoms. The reduced adsorption is explained by an increased electron affinity close to the impurity atoms that renders these sites energetically unfavorable for acceptor-like adsorbates. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:319 / 323
页数:5
相关论文
共 15 条
[1]  
BATZILL M, IN PRESS PHYS REV B
[2]   THE ROLE OF METAL-ION DOPANTS IN QUANTUM-SIZED TIO2 - CORRELATION BETWEEN PHOTOREACTIVITY AND CHARGE-CARRIER RECOMBINATION DYNAMICS [J].
CHOI, WY ;
TERMIN, A ;
HOFFMANN, MR .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (51) :13669-13679
[3]   High transient mobility of chlorine on TiO2(110):: Evidence for "cannon-ball" trajectories of hot adsorbates [J].
Diebold, U ;
Hebenstreit, W ;
Leonardelli, G ;
Schmid, M ;
Varga, P .
PHYSICAL REVIEW LETTERS, 1998, 81 (02) :405-408
[4]  
DIEBOLD U, 2002, SURF SCI REP, V293, P1
[5]   Nano-scale properties of defects in compound semiconductor surfaces [J].
Ebert, P .
SURFACE SCIENCE REPORTS, 1999, 33 (4-8) :121-303
[6]   HETEROGENEOUS PHOTOCATALYSIS [J].
FOX, MA ;
DULAY, MT .
CHEMICAL REVIEWS, 1993, 93 (01) :341-357
[7]   The adsorption of chlorine on TiO2(110) studied with scanning tunneling microscopy and photoemission spectroscopy [J].
Hebenstreit, ELD ;
Hebenstreit, W ;
Geisler, H ;
Ventrice, CA ;
Hite, DA ;
Sprunger, PT ;
Diebold, U .
SURFACE SCIENCE, 2002, 505 (1-3) :336-348
[8]   ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].
HOFFMANN, MR ;
MARTIN, ST ;
CHOI, WY ;
BAHNEMANN, DW .
CHEMICAL REVIEWS, 1995, 95 (01) :69-96
[9]   Visible light driven V-doped TiO2 photocatalyst and its photooxidation of ethanol [J].
Klosek, S ;
Raftery, D .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (14) :2815-2819
[10]   PHOTOCATALYSIS ON TIO2 SURFACES - PRINCIPLES, MECHANISMS, AND SELECTED RESULTS [J].
LINSEBIGLER, AL ;
LU, GQ ;
YATES, JT .
CHEMICAL REVIEWS, 1995, 95 (03) :735-758