Solventless nanoparticles synthesis under low pressure.
In the present study, metal nanocrystals were obtained by the very easy, economical, and nontoxic thermal decomposition method and stabilized by coating oleate without any solvent. These nanocrystals have a highly crystalline structure due to a high decomposition temperature (~563-573 K) at low pressure and very narrow distribution. The prepared Fe3O4 nanocrystals were controlled by the annealing time and vacuum pressure. A TEM image of monodispersed Fe3O4 nanocrystals showed the 2D assembly of nanocrystals, demonstrating their uniformity. The particle size is 10.6 +/- 1.2 nm. TEM images of silver nanocrystals a showed 2D assembly with 9.5 +/- 0.7 nm. An electron diffraction image and X-ray diffraction of the nanocrystals showed the highly crystalline nature of metal nanocrystals.
Department of Chemistry, Pukyong National University, Namgu, Busan, South Korea.
Hyun Gil
HG
Cha
Don Keun
DK
Lee
Young Hwan
YH
Kim
Chang Woo
CW
Kim
Chung Sup
CS
Lee
Young Soo
YS
Kang
D052203:Ferrosoferric Oxide / Q000737:chemistry*; D008854:Microscopy, Electron; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D019301:Oleic Acid / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010316:Particle Size; D011312:Pressure; D012835:Silver Nitrate / Q000737:chemistry; D013696:Temperature; D014961:X-Ray Diffraction
D009942:Organometallic Compounds; D019301:Oleic Acid; C013173:osteum; D012835:Silver Nitrate; D052203:Ferrosoferric Oxide