Single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg) and   LiMAIF(6) (M=Ca, Sr) nanocrystals from cothermolysis of multiple   trifluoroacetates in solution

doi:10.1002/asia.200700054

CORC > 北京大学 > 化学与分子工程学院

	Single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg) and LiMAIF(6) (M=Ca, Sr) nanocrystals from cothermolysis of multiple trifluoroacetates in solution
	Du, Ya-Ping ; Zhang, Ya-Wen ; Yan, Zheng-Guang ; Sun, Ling-Dong ; Gao, Song ; Yan, Chun-Hua
刊名	chemistry an asian journal
	2007
关键词	crystal growth fluorescence fluorides nanostructures synthetic methods SHAPE-CONTROLLED SYNTHESIS RARE-EARTH FLUORIDE UP-CONVERSION SEMICONDUCTOR NANOCRYSTALS OXIDE NANOCRYSTALS MAGNETIC STRUCTURE SIZE CONTROL NANOPARTICLES SUPERLATTICES PHASE
DOI	10.1002/asia.200700054
英文摘要	We report the synthesis of single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg), LiMAlF6 (M=Ca, Sr), and NaMg-F3Yb,Er nanocrystals (quasisquare nanoplates, nanorods, and nanopolygons) by the cothermolysis of multiple trifluoroacetates in hot combined organic solvents (oleic acid, oleylamine, and I-octadecene). The nanocrystals were characterized by XRD, TEM, superconductive quantum interference device (SQUID), and upconversion luminescence spectroscopy. By regulating the polarity of the dispersant, the NaMF3 (M=Mn, Co, Ni) nanoplates were partially aligned to form nanoarrays on copper TEM grids. The sizes of the NaMF3 nanocrystals were easily tuned by the use of proper synthetic conditions such as reaction temperature and time and solvent composition. On the basis of a series of experiments in which the reaction conditions were varied, together with GC-MS and FTIR analysis, the reaction pathways for the formation of these nanocrystals from trifluoroacetate precursors were proposed. The magnetic measurements showed that the differently sized NaMnF3 square plates displayed interesting weak ferromagnetic behavior on the nanometer scale. The strong red upconversion luminescence emitted from the NaMgF3:Yb,Er nanorods under 980-nm near-IR laser excitation suggests that NaMgF3 may be a good candidate host material for red upconversion luminescence.; Chemistry, Multidisciplinary; SCI(E); PubMed; 29; ARTICLE; 8; 965-974; 2
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/198335]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Du, Ya-Ping,Zhang, Ya-Wen,Yan, Zheng-Guang,et al. Single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg) and LiMAIF(6) (M=Ca, Sr) nanocrystals from cothermolysis of multiple trifluoroacetates in solution[J]. chemistry an asian journal,2007.
APA	Du, Ya-Ping,Zhang, Ya-Wen,Yan, Zheng-Guang,Sun, Ling-Dong,Gao, Song,&Yan, Chun-Hua.(2007).Single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg) and LiMAIF(6) (M=Ca, Sr) nanocrystals from cothermolysis of multiple trifluoroacetates in solution.chemistry an asian journal.
MLA	Du, Ya-Ping,et al."Single-crystalline and near-monodispersed NaMF3 (M=Mn, Co, Ni, Mg) and LiMAIF(6) (M=Ca, Sr) nanocrystals from cothermolysis of multiple trifluoroacetates in solution".chemistry an asian journal (2007).