Phase Separation of an Unsymmetrical Disulfide SAM at an Evaporated Au(111) Electrode Monitored by Reductive Desorption and the Electrochemical Response of Cytochrome c

The surface structure of an unsymmetrical disulfide (hexadecyl 4-pyridyl disulfide) modified Au(lll) evaporated electrode has been evaluated using the redox behavior of cytochrome c and the electrochemical reductive desorption reaction. Controlling the modification time, either a homogeneous SAM or a phase-separated SAM was prepared.