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Surface-binding-mediated growth of monodisperse cobalt-doped ceria nanocrystals
Qiu N(裘南); Zhang J(张静); Zheng LR(郑黎荣); Chang GC(常广才); 吴自玉;Qiu, N; Zhang, J; Zheng, LR; Chang, GC; Hashishin, T; Ohara, S; Wu, ZY
Source PublicationRSC ADVANCES
AbstractIn this study, we explore a new strategy to tailor the growth process of monodisperse nanocrystals. By means of X-ray diffraction, high-resolution transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray fluorescence spectrometry, and X-ray absorption spectroscopy, it is found that the growth of ceria followed Ostwald ripening, and polydispersed ceria nanocrystals were obtained in a hydrothermal condition. With the addition of cobalt to the growing ceria nanocrystals, cobalt acted as a surface dopant and preferred to bind on the surface of large-sized ceria nanocrystals via Co-O-Ce bonds. The binding could modulate the Ostwald ripening process and narrow the size distribution. With the competition between cobalt dopants and Ce monomers onto the surface of nanocrystals, monodisperse cobalt-doped nanocrystals were formed. This route is expected to be applicable to a variety of monodisperse doped nanocrystals.
Subject AreaChemistry
Indexed BySCI ; ADS
WOS IDWOS:000334681800026
ADS Bibcode2014RSCAd...416033Q
ADS URLhttps://ui.adsabs.harvard.edu/abs/2014RSCAd...416033Q
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2014RSCAd...416033Q/citations
Citation statistics
Cited Times:1 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Qiu N,Zhang J,Zheng LR,et al. Surface-binding-mediated growth of monodisperse cobalt-doped ceria nanocrystals[J]. RSC ADVANCES,2014,4(31):16033-16038.
APA 裘南.,张静.,郑黎荣.,常广才.,吴自玉;Qiu, N.,...&Wu, ZY.(2014).Surface-binding-mediated growth of monodisperse cobalt-doped ceria nanocrystals.RSC ADVANCES,4(31),16033-16038.
MLA 裘南,et al."Surface-binding-mediated growth of monodisperse cobalt-doped ceria nanocrystals".RSC ADVANCES 4.31(2014):16033-16038.
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