Matter of age: growing anisotropic gold nanocrystals in organic media

被引：35

作者：

Gaikwad, Anil V. ^{[1
]}

Verschuren, Peter ^{[1
]}

Kinge, Sachin ^{[2
]}

Rothenberg, Gadi ^{[1
]}

Eiser, Erika ^{[1
]}

机构：

[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1018 WV Amsterdam, Netherlands

[2] Univ Twente, Inst Nanotechnol, MESA, NL-7500 AE Enschede, Netherlands

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2008年 / 10卷 / 07期

关键词：

D O I：

10.1039/b715112h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigated the influence of the reduction state of gold ions on the growth of gold nanocrystals in N,N-dimethyl formamide (DMF). While freshly prepared solutions of AuCl3 produce spherical nanocrystals, aged precursor solutions containing mainly Au+ ions and Au-0 atoms lead to various branched nanoparticles. Furthermore, we show that also the amount of the reducing and stabilisation agent tetra-n-octylammonium formate (TOAF) plays a decisive role on the shape of the nanocrystals, allowing us to grow triangular and cubic nanoparticles.

引用

页码：951 / 956

页数：6

共 65 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles [J].

Ahmadi, TS ;

Wang, ZL ;

Green, TC ;

Henglein, A ;

ElSayed, MA .

SCIENCE, 1996, 272 (5270) :1924-1926

[2] Nanocluster nucleation, growth, and then agglomeration kinetic and mechanistic studies: A more general, four-step mechanism involving double autocatalysis [J].

Besson, C ;

Finney, EE ;

Finke, RG .

CHEMISTRY OF MATERIALS, 2005, 17 (20) :4925-4938

[3] A mechanism for transition-metal nanoparticle self-assembly [J].

Besson, C ;

Finney, EE ;

Finke, RG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (22) :8179-8184

[4]

Bönnemann H, 2001, EUR J INORG CHEM, P2455

[5] DRIFTS studies of carbon monoxide coverage on highly dispersed bimetallic Pt-Cu and Pt-An catalysts [J].

Chandler, BD ;

Pignolet, LH .

CATALYSIS TODAY, 2001, 65 (01) :39-50

[6] Monopod, bipod, tripod, and tetrapod gold nanocrystals [J].

Chen, SH ;

Wang, ZL ;

Ballato, J ;

Foulger, SH ;

Carroll, DL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (52) :16186-16187

[7] Synthesis and characterization of truncated triangular silver nanoplates [J].

Chen, SH ;

Carroll, DL .

NANO LETTERS, 2002, 2 (09) :1003-1007

[8] Shape controlled growth of gold nanoparticles by a solution synthesis [J].

Chen, Y ;

Gu, X ;

Nie, CG ;

Jiang, ZY ;

Xie, ZX ;

Lin, CJ .

CHEMICAL COMMUNICATIONS, 2005, (33) :4181-4183

[9]

Chuang SSC, 2005, SPR-CATAL, V18, P186

[10] Solvent-induced shape evolution of PVP protected spherical silver nanoparticles into triangular nanoplates and nanorods [J].

Deivaraj, TC ;

Lala, NL ;

Lee, JY .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 289 (02) :402-409

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