<i>In situ</i> X-ray Synchrotron Studies Reveal the Nucleation and Topotactic Transformation of Iron Sulfide Nanosheets.

ABSTRACT: Iron sulfides (Fe_xS_y), including greigite (Fe₃S₄), are key materials in geological processes and technological applications. However, in the context of colloidal synthesis, the mechanism by which these nanoparticles form remains unexplored. Here, we employ in situ X-ray diffraction and photon-in photon-out spectroscopic studies to elucidate the reaction pathway of Fe(acac)₃ and thioacetamide (TAA) in benzyl alcohol (BA), which yields crumpled Fe₃S₄ nanosheets. Using powder X-ray diffraction (PXRD), we identify FeS (mackinawite) as a crystalline intermediate whose anisotropic growth, driven by its layered crystal structure, governs the crumpled nanosheet-like morphology of Fe₃S₄

SUBMITTER: Zito CA 

PROVIDER: S-EPMC12752459 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature