Hydrogen Adatoms on <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>TiO</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mo>(</mo><mn>110</mn><mo>)</mo><mi>−</mi><mo>(</mo><mn>1</mn><mo>×</mo><mn>1</mn><mo>)</mo></math></span> Characterized by Scanning Tunneling Microscopy and Electron Stimulated Desorption

Shushi Suzuki; Ken-ichi Fukui; Hiroshi Onishi; Yasuhiro Iwasawa

doi:10.1103/PhysRevLett.84.2156

Hydrogen Adatoms on ${TiO}_{2} (110) - (1 \times 1)$ Characterized by Scanning Tunneling Microscopy and Electron Stimulated Desorption

Shushi Suzuki, Ken-ichi Fukui, Hiroshi Onishi, and Yasuhiro Iwasawa

Phys. Rev. Lett. 84, 2156 – Published 6 March 2000

Abstract

Hydrogen atoms adsorbed on ${TiO}_{2} (110) - (1 \times 1)$ 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 ${TiO}_{2}$ 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.

Received 18 October 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.2156

Authors & Affiliations

Shushi Suzuki, Ken-ichi Fukui, Hiroshi Onishi^*, and Yasuhiro Iwasawa^†

Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

^*Present address: Kanagawa Academy of Science and Technology, KSP East-404, Sakado, Takatsu-ku, Kawasaki-shi 213-0012, Japan.
^†Corresponding author. Electronic address: iwasawa@chem.s.u-tokyo.ac.jp