Affiliation:
1. School of Physical Science and Technology ShanghaiTech University Pudong New Area Shanghai 201210 P. R. China
2. Department of Physics University of Science and Technology of China Hefei Anhui 230026 P. R. China
Abstract
AbstractWater interaction with ceria is a fundamental process underpinning catalytic reactions such as water‐gas‐shift and water electrolysis. This review summarizes the investigations of water interactions with the ceria low‐index surfaces [(111), (100), and (110)]. The first part introduces: (a) The atomic structures of the stoichiometric CeO2 and reduced CeOx (x=1.5∼2) thin films, including the characteristics of oxygen vacancies; (b) The anisotropic migration mechanisms of oxygen vacancies and the locations of the entangled polarons in the reduced ceria. The second part reviews water‘s adsorption, desorption, dissociation, and redox properties on the ceria low‐index surfaces studied by DFT, TPD, XPS, RPES, TEM, and SPM methods. The impacts of water coverage, ceria film thickness, strain effect, dopant effect, face stability, and solid‐liquid interface on the interaction between water and ceria are also discussed. At last, this review sheds some light on the future directions and challenges in this topic.
Funder
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Catalysis
Cited by
4 articles.
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