Precise and rapid size selection and targeted deposition of nanoparticle populations using CO2 gas expanded liquids

被引：78

作者：

McLeod, MC ^{[1
]}

Anand, M ^{[1
]}

Kitchens, CL ^{[1
]}

Roberts, CB ^{[1
]}

机构：

[1] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA

来源：

NANO LETTERS | 2005年 / 5卷 / 03期

关键词：

D O I：

10.1021/nl047966j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper demonstrates the rapid and precise size selection of nanoparticle populations using the pressure tunable solvent properties of CO2-expanded liquids. Specifically, by pressurizing and expanding a single organic solution with carbon dioxide gas, ligand-stabilized silver particles of desired mean size were size selectively precipitated at desired locations. Compared to current techniques, this CO2-expanded liquid approach provides for faster and more efficient particle size separation, reduction in organic solvent usage, and pressure tunable size selection.

引用

收藏

页码：461 / 465

页数：5

相关论文

共 26 条

[11] Carbon dioxide as a solubility "switch" for the reversible dissolution of highly fluorinated complexes and reagents in organic solvents: Application to crystallization [J].

Jessop, PG ;

Olmstead, MM ;

Ablan, CD ;

Grabenauer, M ;

Sheppard, D ;

Eckert, CA ;

Liotta, CL .

INORGANIC CHEMISTRY, 2002, 41 (13) :3463-3468

[12] Water in carbon dioxide microemulsions: An environment for hydrophiles including proteins [J].

Johnston, KP ;

Harrison, KL ;

Clarke, MJ ;

Howdle, SM ;

Heitz, MP ;

Bright, FV ;

Carlier, C ;

Randolph, TW .

SCIENCE, 1996, 271 (5249) :624-626

[13] Copper nanoparticle synthesis in compressed liquid and supercritical fluid reverse micelle systems [J].

Kitchens, CL ;

Roberts, CB .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2004, 43 (19) :6070-6081

[14] Volume expansions and vapor-liquid equilibria of binary mixtures of a variety of polar solvents and certain near-critical solvents [J].

Kordikowski, A ;

Schenk, AP ;

VanNielen, RM ;

Peters, CJ .

JOURNAL OF SUPERCRITICAL FLUIDS, 1995, 8 (03) :205-216

[15] CO2-expanded liquid deposition of ligand-stabilized nanoparticles as uniform, wide-area nanoparticle films [J].

McLeod, MC ;

Kitchens, CL ;

Roberts, CB .

LANGMUIR, 2005, 21 (06) :2414-2418

[16] SYNTHESIS AND CHARACTERIZATION OF NEARLY MONODISPERSE CDE (E = S, SE, TE) SEMICONDUCTOR NANOCRYSTALLITES [J].

MURRAY, CB ;

NORRIS, DJ ;

BAWENDI, MG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (19) :8706-8715

[17] Synthesis and characterization of monodisperse nanocrystals and close-packed nanocrystal assemblies [J].

Murray, CB ;

Kagan, CR ;

Bawendi, MG .

ANNUAL REVIEW OF MATERIALS SCIENCE, 2000, 30 :545-610

[18] CRYSTALLIZATION OF OPALS FROM POLYDISPERSE NANOPARTICLES [J].

OHARA, PC ;

LEFF, DV ;

HEATH, JR ;

GELBART, WM .

PHYSICAL REVIEW LETTERS, 1995, 75 (19) :3466-3469

[19] Non-fluorous polymers with very high solubility in supercritical CO2 down to low pressures [J].

Sarbu, T ;

Styranec, T ;

Beckman, EJ .

NATURE, 2000, 405 (6783) :165-168

[20] Nanocrystal and nanowire synthesis and dispersibility in supercritical fluids [J].

Shah, PS ;

Hanrath, T ;

Johnston, KP ;

Korgel, BA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (28) :9574-9587