View : 49 Download: 0

Shape-controlled syntheses of metal oxide nanoparticles by the introduction of rare-earth metals

Title
Shape-controlled syntheses of metal oxide nanoparticles by the introduction of rare-earth metals
Authors
Song, Hyo-WonKim, Na-YoungPark, Ji-eunKo, Jae-HyeonHickey, Robert J.Kim, Yong-HyunPark, So-Jung
Ewha Authors
박소정
SCOPUS Author ID
박소정scopus
Issue Date
2017
Journal Title
NANOSCALE
ISSN
2040-3364JCR Link2040-3372JCR Link
Citation
vol. 9, no. 8, pp. 2732 - 2738
Publisher
ROYAL SOC CHEMISTRY
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
Here, we report the size- and shape-controlled synthesis of metal oxide nanoparticles through the introduction of rare-earth metals. The addition of gadolinium oleate in the synthesis of iron oxide nanoparticles induced sphere-to-cube shape changes of nanoparticles and generated iron oxide nanocubes coated with gadolinium. Based on experimental investigations and density functional theory (DFT) calculations, we attribute the shape change to the facet-selective binding of undecomposed gadolinium oleates. While many previous studies on the shape-controlled syntheses of nanoparticles rely on the stabilization of specific crystal facets by anionic surfactants or their decomposition products, this study shows that the interaction between growing transition metal oxide nanoparticles and rare-earth metal complexes can be used as a robust new mechanism for shape-controlled syntheses. Indeed, we demonstrated that this approach was applicable to other transition metal oxide nanoparticles (i.e., manganese oxide and manganese ferrite) and rare earth metals (i.e., gadolinium, europium, and cerium). This study also demonstrates that the nature of metal-ligand bonding can play an important role in the shape control of nanoparticles.
DOI
10.1039/c6nr07555j
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE