Dynamik von Stufen auf Au (1 1 n) Elektroden in elektrochemischer Umgebung [Elektronische Ressource] / Mohammad Al-Shakran

Dynamik von Stufen auf Au (1 1 n) Elektroden in elektrochemischer Umgebung Inaugural – Dissertation zur Erlangung des Doktorgrades der Mathematisch – Naturwissenschaftlichen Fakultät der Heinrich – Heine – Universität Düsseldorf vorlegt von Mohammad Al-Shakran aus Al-Ramtha (JORDANIEN) Jülich,Februar 2011 Dynamics of Steps on Au(1 1 n) Electrodes in Electrochemical Environment A dissertation in Candidacy for a Doctoral Degree in Natural Sciences submitted to the Faculty of Mathematics and Natural Sciences of the Heinrich – Heine – University Düsseldorf By M.Sc. of Physics Mohammad Al-Shakran From Al-Ramtha, Jordan Jülich,February 2011 Abstract This thesis deals with the study of the dynamics of surface defects on stepped Au(100) surface in electrochemical environment using electrochemical scanning tunneling microscope. The first aim of this thesis is to study the evolution of step bunches with time as a function of electrode potential. In previous studies, the evolution of step bunches with time has been performed for surfaces under vacuum conditions, however it was rarely studied in electrochemistry. The aim of this thesis is to fill this gap.