Surface properties of Ga-Cu based liquid-metal alloys: impact of Cu dilution, topography, and alloy liquefaction.

ABSTRACT: We studied the surface properties of Ga-Cu based liquid metal alloys - a promising material system for supported catalytically active liquid metal solutions (SCALMSs). The impact of Cu dilution in the (liquid) Ga matrix is in-detail investigated by X-ray and UV photoelectron spectroscopy (XPS/UPS) and machine-learned-force field (ML-FF) calculations. With decreasing Cu content, microscopic and macroscopic Ga-Cu model samples exhibit a shift of the Cu 2p core level line to higher binding energies (E _b) as well as a correspondingly shifted and narrowed d-band with respect to pure Cu, which we ascribe to site isolation. To study the property evolution of Ga-Cu at SCALMS reaction conditions, i.e., where Cu is present in liquid Ga, additional XPS measurements were perfo

SUBMITTER: Hsieh TE 

PROVIDER: S-EPMC12818026 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature