| Budget Amount *help |
¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
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| Research Abstract |
We studied the mechanism of reaction and dynamics of hydroxyl species and hydrogen atom on Cu(110) at a single-molecule level. By tunnel electrons from the STM tip, the vibration mode of a water molecule is excited, which decays into the motion of hydrogen atom. By collaboration with theory groups, we determined the identity of the vibration modes and their frequencies. It was also found that the oxygen adatom on the surface plays a crucial role in dissociating water molecules into hydroxyl dimer. This indicates that the impurity oxygen atom is the active site for the reaction of water molecules on the copper surface. On the other hand, sulfur atom is not reactive to water molecules; we reveal essential difference between two chalcogen atoms in the catalytic activity.
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