Polyoxometalates (Sep 2024)

From confined growth to enhanced peroxidase-like activity: Nucleation of a phosphate-mediated FeIII–CeIII–oxo cluster inside the {P8W48} nanoreactor

  • Hong-Xin Sheng,
  • Bo-Yang Lin,
  • Chao-Qin Chen,
  • Jing Du,
  • Peng Yang

Journal volume & issue
Vol. 3, no. 3
p. 9140060


Read online

Novel structures of polyoxometalates can be obtained by confining the synthons within specific nanospaces. This capability is what the confined synthetic method excels at. Within the cavity of {P8W48}, a novel multicomponent cluster comprising cationic FeIII and CeIII heterometals and PO43− oxyanions was successfully nucleated for the first time. Alongside examining the structure and composition of this host–guest assembly, thorough investigations were conducted into the enhanced peroxidase-like activity induced by the Fenton-active metallic species. Preliminary studies on a colorimetric sensor based on [{FeIII8CeIII4O2(OH)12(H2O)8(PO4)2}(P8W48O184)]26− yielded promising results, demonstrating its ability to detect ascorbic acid with high sensitivity and specificity.