Quantitative Measurement of Cooperative Binding in Partially Dissociated Water Dimers at the Hematite "R-Cut" Surface.

ABSTRACT: Water-solid interfaces pervade the natural environment and modern technology. On some surfaces, water-water interactions induce the formation of partially dissociated interfacial layers; understanding why is important to model processes in catalysis or mineralogy. The complexity of the partially dissociated structures often makes it difficult to probe them quantitatively. Here, we utilize normal incidence X-ray standing waves (NIXSW) to study the structure of partially dissociated water dimers (H₂O-OH) at the α-Fe₂O₃(012) surface (also called the (11̅02) or "R-cut" surface): a system simple enough to be tractable yet complex enough to capture the essential physics. We find the H₂O and terminal OH groups to be the same height above the surface wit

SUBMITTER: Ryan PTP 

PROVIDER: S-EPMC11481491 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature