Controllable Synthesis and Growth Mechanism of Ceria Nanocubes by Template-Free Hydrothermal Method

Hepeng Zhang, Bo Yang, Huan Li, Chen Wu, Wenbin Wang, Baoliang Zhang, Qiuyu Zhang, Chongyin Zhang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Different crystal planes of CeO2 have a different number of broken bonds, surface energy and catalytic activities, so preparing the CeO2 with different exposed planes has attracted extensive attention. In recent years, the preparation of CeO2 nanocubes with {100} exposed plane has been a real hotspot of research because of its good catalytic performance. Based on the research about the alkali concentration, reaction temperature and reaction time, the formation mechanism of CeO2 nanocubes was explored. It is believed that the dissolution-recrystallization process is accelerated in the condition of strong base, high temperature and high pressure. In other word, the Ostwald ripening process is strengthened, which is the decisive factor for the formation of CeO2 nanocubes.

Original languageEnglish
Article number1700233
JournalCrystal Research and Technology
Volume53
Issue number1
DOIs
StatePublished - Jan 2018

Keywords

  • ceria nanocubes
  • growth mechanism
  • template-free hydrothermal methods

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