Real-time observation of interfacial ions during electrocrystallization.

ABSTRACT: Understanding the electrocrystallization mechanisms of metal cations is of importance for many industrial and scientific fields. We have determined the transitional structures during underpotential deposition (upd) of various metal cations on Au(111) electrode using time-resolved surface X-ray diffraction and step-scan IR spectroscopy. At the initial stage of upd, a characteristic intensity transient appears in the time-resolved crystal truncation rod depending on metal cations. Metal cations with relatively high coordination energies of hydration water are deposited in two steps: first, the hydrated metal cations approached the surface and are metastably located at the outer Helmholtz plane, then they are deposited via the destruction of the hydration shell. However, Tl⁺ and Ag

SUBMITTER: Nakamura M 

PROVIDER: S-EPMC5430517 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature