Controllable synthesis of ceria nanoparticles with uniform reactive {100} exposure planes

Yong Chen, Shuhui Lv, Chunlin Chen, Changjun Qiu, Xiangfang Fan, Zhongchang Wang

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    We investigate, by a systematic first-principles calculation, the surface energies of ceria {100} crystal planes with adsorption of 13 kinds of nonmetallic elements and nine kinds of metallic elements. We predict theoretically that adsorption of nonmetallic B, C, F, Si, P, S, Cl, Br, OH, and I and metallic Sr, La, Mg, Na, K, Y, Ca, and Ba can stabilize the ceria {100} planes through lowering their surface energies. Experimentally, we purposely select KOH as a mineralizing agent by taking into account the calculated surface energies and the factors in hydrothermal synthesis, and demonstrate a successful production of cube-shaped ceria nanoparticles of high purity via carefully optimizing the synthesis parameters. Further comprehensive transmission electron microscopy study identifies all the exposure planes of the cube-shaped ceria nanoparticles as the uniform {100} crystal planes. As a result of this unique morphology, the nanoparticles are found to show markedly enhanced UV-absorption capability as compared to either octahedron-shaped ceria nanoparticles or bulk ceria.

    Original languageEnglish
    Pages (from-to)4437-4443
    Number of pages7
    JournalJournal of Physical Chemistry C
    Volume118
    Issue number8
    DOIs
    Publication statusPublished - 2014 Feb 27

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Energy(all)
    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films

    Fingerprint

    Dive into the research topics of 'Controllable synthesis of ceria nanoparticles with uniform reactive {100} exposure planes'. Together they form a unique fingerprint.

    Cite this