Size-dependent solubility of thiol-derivatized gold nanoparticles in supercritical ethane

被引:53
作者
Clarke, NZ [1 ]
Waters, C [1 ]
Johnson, KA [1 ]
Satherley, J [1 ]
Schiffrin, DJ [1 ]
机构
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
关键词
D O I
10.1021/la010794a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
It is shown that alkane thiol-capped gold nanoparticles can be dissolved in supercritical ethane. Importantly, the solubility was found to be dependent on the core diameter thus allowing separation by size. Nanoparticles with a core diameter less than 1.7 mn were soluble in the supercritical fluid.
引用
收藏
页码:6048 / 6050
页数:3
相关论文
共 20 条
[1]   Optical absorption spectra of nanocrystal gold molecules [J].
Alvarez, MM ;
Khoury, JT ;
Schaaff, TG ;
Shafigullin, MN ;
Vezmar, I ;
Whetten, RL .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (19) :3706-3712
[2]  
ATKINS PW, 1999, PHYSICAL CHEM, P665
[3]   Electrochemical charge injection into immobilized nanosized gold particle ensembles: Potential modulated transmission and reflectance spectroscopy [J].
Baum, T ;
Bethell, D ;
Brust, M ;
Schiffrin, DJ .
LANGMUIR, 1999, 15 (03) :866-871
[4]  
BOTTCHER CJF, 1973, THEORY ELECT POLARIS, P86
[5]   SYNTHESIS OF THIOL-DERIVATIZED GOLD NANOPARTICLES IN A 2-PHASE LIQUID-LIQUID SYSTEM [J].
BRUST, M ;
WALKER, M ;
BETHELL, D ;
SCHIFFRIN, DJ ;
WHYMAN, R .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (07) :801-802
[6]   Metallic copper nanoparticle synthesis in AOT reverse micelles in compressed propane and supercritical ethane solutions [J].
Cason, JP ;
Roberts, CB .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (06) :1217-1221
[7]   Supercritical fluid and compressed solvent effects on metallic nanoparticle synthesis in reverse micelles [J].
Cason, JP ;
Khambaswadkar, K ;
Roberts, CB .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (12) :4749-4755
[8]   Electrochemical quantized capacitance charging of surface ensembles of gold nanoparticles [J].
Chen, SW ;
Murray, RW .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (45) :9996-10000
[9]   Gold nanoelectrodes of varied size: Transition to molecule-like charging [J].
Chen, SW ;
Ingram, RS ;
Hostetler, MJ ;
Pietron, JJ ;
Murray, RW ;
Schaaff, TG ;
Khoury, JT ;
Alvarez, MM ;
Whetten, RL .
SCIENCE, 1998, 280 (5372) :2098-2101
[10]   Radiolytically induced formation and optical absorption spectra of colloidal silver nanoparticles in supercritical ethane [J].
Dimitrijevic, NM ;
Bartels, DM ;
Jonah, CD ;
Takahashi, K ;
Rajh, T .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (05) :954-959