Hydrogen adatoms on TiO2(110)-(1 x 1) characterized by scanning tunneling microscopy and electron stimulated desorption

被引:162
作者
Suzuki, S [1 ]
Fukui, K [1 ]
Onishi, H [1 ]
Iwasawa, Y [1 ]
机构
[1] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
关键词
D O I
10.1103/PhysRevLett.84.2156
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Hydrogen atoms adsorbed on TiO2(110)-(1 x 1) surfaces have been characterized by scanning tunneling microscopy (STM) combined with electron stimulated desorption (ESD) technique. Certain amounts of H atoms are unexpectedly found on the TiO2 surfaces annealed at 900 K. Two forms of adsorption were discriminated in STM images from the different sensitivity to ESD and tentatively assigned to hydroxyl-type (O-H) and hydride-type (Ti-H) species.
引用
收藏
页码:2156 / 2159
页数:4
相关论文
共 23 条
[1]   A systematic study of the surface energetics and structure of TiO2(110) by first-principles calculations [J].
Bates, SP ;
Kresse, G ;
Gillan, MJ .
SURFACE SCIENCE, 1997, 385 (2-3) :386-394
[2]   Relaxation of TiO2(110)-(1x1) using surface X-ray diffraction [J].
Charlton, G ;
Howes, PB ;
Nicklin, CL ;
Steadman, P ;
Taylor, JSG ;
Muryn, CA ;
Harte, SP ;
Mercer, J ;
McGrath, R ;
Norman, D ;
Turner, TS ;
Thornton, G .
PHYSICAL REVIEW LETTERS, 1997, 78 (03) :495-498
[3]   Intrinsic defects on a TiO2(110)(1x1) surface and their reaction with oxygen:: a scanning tunneling microscopy study [J].
Diebold, U ;
Lehman, J ;
Mahmoud, T ;
Kuhn, M ;
Leonardelli, G ;
Hebenstreit, W ;
Schmid, M ;
Varga, P .
SURFACE SCIENCE, 1998, 411 (1-2) :137-153
[4]   Evidence for the tunneling site on transition-metal oxides: TiO2(110) [J].
Diebold, U ;
Anderson, JF ;
Ng, KO ;
Vanderbilt, D .
PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1322-1325
[5]   Atom-resolved image of the TiO2(110) surface by noncontact atomic force microscopy [J].
Fukui, K ;
Onishi, H ;
Iwasawa, Y .
PHYSICAL REVIEW LETTERS, 1997, 79 (21) :4202-4205
[6]  
Gates B. C, 1992, CATALYTIC CHEM
[7]   The influence of soft vibrational modes on our understanding of oxide surface structure [J].
Harrison, NM ;
Wang, XG ;
Muscat, J ;
Scheffler, M .
FARADAY DISCUSSIONS, 1999, 114 :305-312
[8]  
Henrich V. E. C. P. A., 1994, SURFACE SCI METAL OX
[9]   Surface relaxation of rutile TiO2(110)-(1x1) from ion shadowing/blocking measurements [J].
Hird, B ;
Armstrong, RA .
SURFACE SCIENCE, 1999, 420 (2-3) :L131-L137
[10]   Characterization and chemical design of oxide surfaces [J].
Iwasawa, Y .
11TH INTERNATIONAL CONGRESS ON CATALYSIS - 40TH ANNIVERSARY, PTS A AND B, 1996, 101 :21-34