Acquired superoxide-scavenging ability of ceria nanoparticles

Yuanyuan Li, Xiao He, Jun-Jie Yin, Yuhui Ma, P. Zhang, Jingyuan Li, Yayun Ding, Jing Zhang, Yuliang Zhao, Zhifang Chai, Zhiyong Zhang

Research output: Contribution to journalArticlepeer-review

125 Citations (Scopus)


Ceria nanoparticles (nanoceria) are well known as a superoxide scavenger. However, inherent superoxide‐scavenging ability has only been found in the nanoceria with sizes of less than 5 nm and with very limited shape diversity. Reported herein is a strategy to significantly improve the superoxide‐scavenging activity of nanoceria sized at greater than 5 nm. The nanoceria with sizes of greater than 5 nm, with different shapes, and with a negligible Ce3+/Ce4+ ratio can acquire remarkable superoxide‐scavenging abilities through electron transfer. This method will make it possible to develop nanoceria‐based superoxide‐scavengers with long‐acting activity and tailorable characteristics.
Original languageEnglish
Pages (from-to)1832-1835
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number6
Early online date16 Dec 2014
Publication statusPublished - 2 Feb 2015


  • cerium
  • electron transfer
  • nanoparticles
  • oxides
  • surface chemistry


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