Insights on catalytic mechanism of CeO2 as multiple nanozymes  

作　　者：Yuanyuan Ma Zhimin Tian Wenfang Zhai Yongquan Qu 

机构地区：[1]Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology,School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi’an,710072,China

出　　处：《Nano Research》2022年第12期10328-10342,共15页纳米研究（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21872109 and 52002314);China Postdoctoral Science Foundation(Nos.2018M633504 and 2018M633749);Authors also acknowledge the support from the Fundamental Research Funds for the Central Universities(Nos.D5000210829,D5000210601,and G2021KY05102);Funds Shaanxi Province(No.2021JM-589)。

摘　　要：CeO2 with the reversible Ce3+/Ce4+redox pair exhibits multiple enzyme-like catalytic performance,which has been recognized as a promising nanozyme with potentials for disease diagnosis and treatments.Tailorable surface physicochemical properties of various CeO2 catalysts with controllable sizes,morphologies,and surface states enable a rich surface chemistry for their interactions with various molecules and species,thus delivering a wide variety of catalytic behaviors under different conditions.Despite the significant progress made in developing CeO2-based nanozymes and their explorations for practical applications,their catalytic activity and specificity are still uncompetitive to their counterparts of natural enzymes under physiological environments.With the attempt to provide the insights on the rational design of highly performed CeO2 nanozymes,this review focuses on the recent explorations on the catalytic mechanisms of CeO2 with multiple enzyme-like performance.Given the detailed discussion and proposed perspectives,we hope this review can raise more interest and stimulate more efforts on this multi-disciplinary field.

关 键 词：heterogeneous catalysis CERIA nanozyme oxygen vacancy 

分 类 号：O64[理学—物理化学]