TY - JOUR
T1 - Adsorption of hydrogen on Al(111) and Al(110)
T2 - coverage and temperature dependence of adsorption states
AU - Kondoh, H.
AU - Hara, M.
AU - Domen, K.
AU - Nozoye, H.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1993/5/10
Y1 - 1993/5/10
N2 - Although hydrogen adsorbed on aluminum surfaces is a simple-looking adsorption system, the interaction between them has been found to be very peculiar; that is, a large amount of aluminum hydride molecules such as Al2H6 and/or AlH3 desorb from H/Al(111), while they desorb hardly from H/Al(110). In order to investigate the adsorption states of hydrogen on the two different aluminum surfaces, we have studied these systems by TPD, LEED, and HREELS. Hydrogen atoms adsorb in the island-growth manner on Al(111) at 85 K from the initial stage of adsorption and form a surface aluminum hydride after annealing the surface. The hydrogen adsorption on Al(110) at 85 K exhibits sequential site filling in contrast to H/Al(111) and displays a (1 × 2) reconstruction after annealing.
AB - Although hydrogen adsorbed on aluminum surfaces is a simple-looking adsorption system, the interaction between them has been found to be very peculiar; that is, a large amount of aluminum hydride molecules such as Al2H6 and/or AlH3 desorb from H/Al(111), while they desorb hardly from H/Al(110). In order to investigate the adsorption states of hydrogen on the two different aluminum surfaces, we have studied these systems by TPD, LEED, and HREELS. Hydrogen atoms adsorb in the island-growth manner on Al(111) at 85 K from the initial stage of adsorption and form a surface aluminum hydride after annealing the surface. The hydrogen adsorption on Al(110) at 85 K exhibits sequential site filling in contrast to H/Al(111) and displays a (1 × 2) reconstruction after annealing.
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U2 - 10.1016/0039-6028(93)90745-6
DO - 10.1016/0039-6028(93)90745-6
M3 - Article
AN - SCOPUS:0027592539
SN - 0039-6028
VL - 287-288
SP - 74
EP - 78
JO - Surface Science
JF - Surface Science
IS - PART 1
ER -