Oxidation of Metal Surfaces - Science
2002年9月20日 · At the heart of metal oxidation is the complex interaction of oxygen with the metal surface. The initial stage of oxidation requires a supply of atomic oxygen, together with sufficient mobility of metal atoms on the surface.
Atomic-scale understanding of oxidation mechanisms of …
2022年5月1日 · The initial stage of surface oxidation, i.e., from the solid-oxygen interaction to the surface reconstruction, will be systematically introduced at the atomic level. Finally, the oxidation mechanisms of nanomaterials, including nanoparticles, nanowires, and Two-dimensional (2D) materials, will be discussed and compared with bulk oxidation.
Subsurface oxygen at transition metal surfaces: Its direct atom ...
2024年9月15日 · Clarifying how oxygen is incorporated into the subsurface region of metal surfaces is a crucial step towards a robust understanding of the initial oxidation of metals. Due to lack of direct atomic-resolution imaging of subsurface oxygen, the atomistic mechanisms of oxygen-metal interactions and the role of subsurface oxygen remain elusive.
How the anisotropy of surface oxide formation influences the ... - Nature
2021年1月4日 · In situ PEEM imaging of ongoing H 2 oxidation allows a direct comparison of the local reactivity of metallic and oxidised Rh surfaces for the very same different stepped surface structures,...
Defect-driven selective metal oxidation at atomic scale
2021年1月25日 · Here, the authors show the atomic-scale dynamics of surface oxidation at coherent planar defects in Ag and Pd, revealing how twins and stacking-faults selectively oxidize metallic nanocrystals.
Atomic-Scale Insights into the Oxidation of Aluminum
We reveal that oxidation of Al(100) occurs via island growth and surface oxidation, whereas for Al(111), the oxide can grow along an atomic plane below the uppermost surface layer. This has important implications for optimizing the corrosion, aesthetic and insulating properties of aluminum oxide coatings for a wide range of applications.
Theoretical insights into the surface physics and chemistry of …
2020年5月27日 · Understanding how defects form, couple, propagate, agglomerate or repel each other and influence the surface properties of reducible oxides is only now coming into the grasp of modern theory and...
Surface Oxidation and Wetting Synergistic Effect of Liquid Metals
2023年5月7日 · It is revealed that the magnitude of current density on the surface of liquid metals, caused by galvanic corrosion behavior between liquid metals and copper particles, is the key factor influencing the dominance of different surface processes of liquid metals.
Revealing atomic-to-nanoscale oxidation mechanisms of metallic ...
2023年9月1日 · The general mechanism of a surface oxidation process is through the reaction of adsorbed oxygen with metal atoms. Thermodynamically, this is an inevitable process because metals have a strong driving force to transform to their low-energy oxide state.
O2 Activation by Metal Surfaces: Implications for Bonding and ...
2017年11月8日 · The activation of O 2 on metal surfaces is a critical process for heterogeneous catalysis and materials oxidation. Fundamental studies of well-defined metal surfaces using a variety of techniques have given crucial insight into the mechanisms, energetics, and dynamics of O 2 adsorption and dissociation.