Piezo-photocatalysis over high-nuclearity titanium-oxide cluster via lead heterocoordination enhances activity by piezoelectric effect.

ABSTRACT: Piezoelectric materials usually exist in solid-state forms with obscure structures, hindering atomic-level understanding of structure-property relationships. Here, we report the piezoelectric high-nuclearity titanium-oxide molecular cluster, Ti₂₆Pb₁₀, constructed via a dopant metal coordination strategy. The cluster framework comprises 26 Ti atoms linked by binuclear units, with 10 Pb²⁺ ions anchored through distinct coordination: 2 embedded and 8 surface exposed. Ti₂₆Pb₁₀ displays a piezoelectric constant 5.5 times higher than PbTiO₃, as confirmed by piezoresponse force microscopy. Density functional theory simulations reveal stress-induced lattice distortion and bandgap shifts. Critically, leveraging piezo-photocatalytic s

SUBMITTER: Liu L 

PROVIDER: S-EPMC12710690 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature