Surface segregation

{
  "id": "MLC-T-CHM-011664",
  "term": "Surface segregation",
  "field": "Chemistry",
  "definition": "The phenomenon where certain components of a multi-component material preferentially accumulate at the surface or interface compared to their bulk concentration. This redistribution is driven by a reduction in surface free energy. It can significantly alter the surface properties, such as catalytic activity or corrosion resistance.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1816 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/surface-segregation/"
}