Improved size control of large palladium nanoparticles by a seeding growth method

被引：76

作者：

Lu, LH ^{[1
]}

Wang, HS ^{[1
]}

Xi, SQ ^{[1
]}

Zhang, HJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2002年 / 12卷 / 02期

关键词：

D O I：

10.1039/b109797k

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：

A new approach to the preparation of large palladium nanoparticles with diameters between 25 and 100 nm is presented. In this approach PdCl42- ions are reduced on the surface of performed 12-nm-diameter gold "seeds'' by the introduction of ascorbic acid. The resultant particles exhibit improved monodispersity relative to previous work. Interestingly, these nanoparticles possess Au-Pd core-shell structures. The method can be scaled up to produce 50-110 mg of large palladium nanoparticles.

引用

页码：156 / 158

页数：3

共 21 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles
Ahmadi, TS
Wang, ZL
Green, TC
Henglein, A
ElSayed, MA
[J]. SCIENCE, 1996, 272 (5270) : 1924 - 1926
[2] Hydroxylamine seeding of colloidal Au nanoparticles in solution and on surfaces
Brown, KR
Natan, MJ
[J]. LANGMUIR, 1998, 14 (04) : 726 - 728
[3] Seeding of colloidal Au nanoparticle solutions. 2. Improved control of particle size and shape
Brown, KR
Walter, DG
Natan, MJ
[J]. CHEMISTRY OF MATERIALS, 2000, 12 (02) : 306 - 313
[4] Alkanethiolate-protected palladium nanoparticles
Chen, SW
Huang, K
Stearns, JA
[J]. CHEMISTRY OF MATERIALS, 2000, 12 (02) : 540 - 547
[5] Dhas NA, 1997, J PHYS CHEM B, V101, P6834
[6] Some interesting properties of metals confined in time and nanometer space of different shapes
El-Sayed, MA
[J]. ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (04) : 257 - 264
[7] THE COLLOID-CHEMICAL APPROACH TO NANOSTRUCTURED MATERIALS
FENDLER, JH
MELDRUM, FC
[J]. ADVANCED MATERIALS, 1995, 7 (07) : 607 - 632
[8] CONTROLLED NUCLEATION FOR REGULATION OF PARTICLE-SIZE IN MONODISPERSE GOLD SUSPENSIONS
FRENS, G
[J]. NATURE-PHYSICAL SCIENCE, 1973, 241 (105): : 20 - 22
[9] Colloidal palladium nanoparticles:: Reduction of Pd(II) by H2;: PdcoreAushellAgshell particles
Henglein, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (29): : 6683 - 6685
[10] Wet chemical synthesis of silver nanorods and nanowires of controllable aspect ratio
Jana, NR
Gearheart, L
Murphy, CJ
[J]. CHEMICAL COMMUNICATIONS, 2001, (07) : 617 - 618

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