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Low-temperature topotactic oxidation using the solid-state oxidant Zr-doped CeO2.

Masanagi AbeHideyuki KawasokoTomoteru Fukumura
Published in: Chemical communications (Cambridge, England) (2021)
A new topotactic oxidation was developed using the solid-state oxidant Zr-doped CeO2. For the anti-ThCr2Si2 type Y2O2Bi, which became superconducting via oxygen intercalation during solid-state oxidation at 1000 °C, the topotactic oxidation enabled not only the oxygen intercalation at a much lower temperature of 200 °C, hampering the segregation of impurity phases, but also the highest superconducting transition temperature for Y2O2Bi.
Keyphrases
  • solid state
  • visible light
  • hydrogen peroxide
  • quantum dots
  • electron transfer
  • pet imaging
  • highly efficient
  • room temperature