Growth of colloidal gold nanostars and nanowires induced by palladium doping

被引：31

作者：

Krichevski, Olga ^{[1
]}

Markovich, Gil ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

LANGMUIR | 2007年 / 23卷 / 03期

关键词：

D O I：

10.1021/la062500x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gold-palladium nanocrystals with starlike shapes and high aspect ratio nanowires were grown in a surfactant solution. The incorporation of palladium into the growing gold nanostructures induced nanowire formation with high yield. Kinetic control of the metal deposition rate through tuning of the pH value to about 5 was crucial for the nanowire growth. The nanostructures were characterized by high-resolution electron microscopy and energy-dispersive X-ray spectroscopy. The Au-Pd nanowires were deposited on functionalized silicon wafers.

引用

页码：1496 / 1499

页数：4

共 11 条

[1] Beyond Archimedean solids: Star polyhedral gold nanocrystals [J].

Burt, JL ;

Elechiguerra, JL ;

Reyes-Gasga, J ;

Montejano-Carrizales, JM ;

Jose-Yacaman, M .

JOURNAL OF CRYSTAL GROWTH, 2005, 285 (04) :681-691

[2] Surface atomic defect structures and growth of gold nanorods [J].

Gai, PL ;

Harmer, MA .

NANO LETTERS, 2002, 2 (07) :771-774

[3] Dependence of the gold nanorod aspect ratio on the nature of the directing surfactant in aqueous solution [J].

Gao, JX ;

Bender, CM ;

Murphy, CJ .

LANGMUIR, 2003, 19 (21) :9065-9070

[4] Wet chemical synthesis of silver nanorods and nanowires of controllable aspect ratio [J].

Jana, NR ;

Gearheart, L ;

Murphy, CJ .

CHEMICAL COMMUNICATIONS, 2001, (07) :617-618

[5] Wet chemical synthesis of high aspect ratio cylindrical gold nanorods [J].

Jana, NR ;

Gearheart, L ;

Murphy, CJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (19) :4065-4067

[6] Growth and form of gold nanorods prepared by seed-mediated, surfactant-directed synthesis [J].

Johnson, CJ ;

Dujardin, E ;

Davis, SA ;

Murphy, CJ ;

Mann, S .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (06) :1765-1770

[7] Formation of gold-silver nanowires in thin surfactant solution films [J].

Krichevski, O ;

Tirosh, E ;

Markovich, G .

LANGMUIR, 2006, 22 (03) :867-870

[8] Anisotropic metal nanoparticles: Synthesis, assembly, and optical applications [J].

Murphy, CJ ;

San, TK ;

Gole, AM ;

Orendorff, CJ ;

Gao, JX ;

Gou, L ;

Hunyadi, SE ;

Li, T .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (29) :13857-13870

[9] Gold nanorods:: Synthesis, characterization and applications [J].

Pérez-Juste, J ;

Pastoriza-Santos, I ;

Liz-Marzán, LM ;

Mulvaney, P .

COORDINATION CHEMISTRY REVIEWS, 2005, 249 (17-18) :1870-1901

[10] Room temperature, high-yield synthesis of multiple shapes of gold nanoparticles in aqueous solution [J].

Sau, TK ;

Murphy, CJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (28) :8648-8649

← 1 2 →