Local structure and phase transitions within ordered electrochemical adlayers: Some new insights from in situ scanning tunneling microscopy

摘要: The application of in situ atomic-resolution scanning tunneling microscopy (STM) to the elucidation local structure and potential-induced phase transitions within ordered adlayers on monocrystalline metal electrodes is discussed, illustrated primarily for compressed CO Pt(111). value additional structural information adsorbate binding sites that can be obtained from infrared reflection-absorption spectroscopy (IRAS) as well potentiodynamic STM imaging tactics emphasized. atomic-level nanoscale alterations wrought upon Pt(111)/CO adlayer by bismuth predosing are described a further illustration synergetic spatial surface-bonding provided IRAS. A comparison made between potential-dependent characteristics with iodide gold platinum low-index electrodes. Possible reasons marked differences phase-transition behavior these nonmetallic briefly along comparisons analogous ultrahigh vacuum environments.