Thermo-chemical environment-dependent vacancy formation in Fe₂WO₆: A DFT study.

ABSTRACT: Fe₂WO₆, known for its potential in photocatalytic and electrocatalytic applications due to its chemical stability and band structure, can exhibit various defects that influence its performance. Density functional theory (DFT) calculations were employed to determine the formation energies of iron, tungsten, and oxygen vacancies under different thermo-chemical environments within the Fe-W-O ternary system. The study reveals that oxygen vacancies are more likely to form in reducing environments rich in FeO and Fe₃O₄ and it can offer practicality through facilitating the formation of reactive oxygen species (ROS), which contribute to photocatalytic performance. Meanwhile, the formation of iron vacancies is more readily achieved in oxygen-rich conditi

SUBMITTER: Seo K 

PROVIDER: S-EPMC11535975 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature