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From Ultrathin Two-Dimensional Djurleite Nanosheets to One-Dimensional Nanorods Comprised of Djurleite Nanoplates: Synthesis, Characterization, and Formation Mechanism
Yi, Luoxin; Gao, Mingyuan
2011-04-01
Source PublicationCRYSTAL GROWTH & DESIGN
ISSN1528-7483
Volume11Issue:4Pages:1109-1116
AbstractSn-doped ultrathin copper sulfide nanosheets of 209 +/- 33 nm and nanoplates of 36.0 +/- 5.9 nm were synthesized by pyrolyzing copper(II) acetylacetonate (Cu(acac)(2)) in dodecanethiol in the presence of different amounts of SnCl4 center dot 5H(2)O. The large nanosheets appeared in hexagonal and quasi-triangular shapes, while the small nanoplates presented mainly triangular shapes. Transmission electron microscopy (TEM) studies revealed that both nanosheets and nanoplates tended to form face-to-face stacking, which was further confirmed by X-ray diffraction studies. Such a self-assembling tendency became so strong for the small nanoplates that they formed one-dimensional (1D) self-assembled nanorods of 365 +/- 145 nm. Atomic force microscopy studies revealed that the thickness of nanosheets was around 6.4-6.6 angstrom. The powder X-ray diffraction and high resolution TEM investigations demonstrated that the resultant two-dimensional (2D) nanocrystals are of monoclinic djurleite (Cu31S16). Further investigations on different control samples revealed that Sn could partly replace Cu in forming lamellar supramolecular structures which actually acted as the precursors for the ultrathin 2D djurleite nanocrystals. Because of the excellent thermal stability and protective effects, the Sn-dodecanethiol complexes survived the pyrolysis of Cu(acac)(2) and preferentially attached on {100} facets of the resultant djurleite nanocrystals. Consequently, the growth of djurleite nanocrystals along the [100] direction was blocked, resulting in 2D Cu31S16 nanocrystals. The dipole-dipole interaction along the [100] direction and the hydrophobic interaction between the nanoplates were the main driving force for the formation of 1D superstructures of the nanoplates.
DOI10.1021/cg101322s
Indexed BySCI
Language英语
WOS IDWOS:000289050100036
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73356
Collection中国科学院化学研究所
Corresponding AuthorGao, Mingyuan
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yi, Luoxin,Gao, Mingyuan. From Ultrathin Two-Dimensional Djurleite Nanosheets to One-Dimensional Nanorods Comprised of Djurleite Nanoplates: Synthesis, Characterization, and Formation Mechanism[J]. CRYSTAL GROWTH & DESIGN,2011,11(4):1109-1116.
APA Yi, Luoxin,&Gao, Mingyuan.(2011).From Ultrathin Two-Dimensional Djurleite Nanosheets to One-Dimensional Nanorods Comprised of Djurleite Nanoplates: Synthesis, Characterization, and Formation Mechanism.CRYSTAL GROWTH & DESIGN,11(4),1109-1116.
MLA Yi, Luoxin,et al."From Ultrathin Two-Dimensional Djurleite Nanosheets to One-Dimensional Nanorods Comprised of Djurleite Nanoplates: Synthesis, Characterization, and Formation Mechanism".CRYSTAL GROWTH & DESIGN 11.4(2011):1109-1116.
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