Synthesis of spongy gold nanocrystals with pronounced catalytic activities

被引：219
作者：
Rashid, Md. Harunar [1 ]
Bhattacharjee, Rama Ranjan [1 ]
Kotal, Atanu [1 ]
Mandal, Tarun K. [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Polymer Sci Unit, Kolkata 700032, W Bengal, India
来源：
LANGMUIR | 2006年 / 22卷 / 17期
关键词：
D O I：
10.1021/la060939j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A simple and easier chemical method for preparing spongy gold nanocrystals has been developed on the basis of a modified-citrate reduction technique of the corresponding gold salt at 25 degrees C in the absence of template. These nanocrystals possessed autocatalytic behavior and exhibited pronounced catalytic activity in the borohydride reduction of 4-nitrophenol due to their unique spongy morphology.
引用
收藏
页码：7141 / 7143
页数：3
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  • [1] Gold nanocages: Bioconjugation and their potential use as optical imaging contrast agents
    Chen, J
    Saeki, F
    Wiley, BJ
    Cang, H
    Cobb, MJ
    Li, ZY
    Au, L
    Zhang, H
    Kimmey, MB
    Li, XD
    Xia, YN
    [J]. NANO LETTERS, 2005, 5 (03) : 473 - 477
  • [2] Controlled synthesis of high crystalline bismuth sulfide nanorods: using bismuth citrate as a precursor
    Chen, R
    So, MH
    Che, CM
    Sun, HZ
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (42) : 4540 - 4545
  • [3] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology
    Daniel, MC
    Astruc, D
    [J]. CHEMICAL REVIEWS, 2004, 104 (01) : 293 - 346
  • [4] Preparation of PAMAM- and PPI-metal (silver, platinum, and palladium) nanocomposites and their catalytic activities for reduction of 4-nitrophenol
    Esumi, K
    Isono, R
    Yoshimura, T
    [J]. LANGMUIR, 2004, 20 (01) : 237 - 243
  • [5] Quantum-dot-tagged microbeads for multiplexed optical coding of biomolecules
    Han, MY
    Gao, XH
    Su, JZ
    Nie, S
    [J]. NATURE BIOTECHNOLOGY, 2001, 19 (07) : 631 - 635
  • [6] Preparation of gold-dendrimer nanocomposites by laser irradiation and their catalytic reduction of 4-nitrophenol
    Hayakawa, K
    Yoshimura, T
    Esumi, K
    [J]. LANGMUIR, 2003, 19 (13) : 5517 - 5521
  • [7] Ultrasonic-assisted synthesis of monodisperse single-crystalline silver nanoplates and gold nanorings
    Jiang, LP
    Xu, S
    Zhu, JM
    Zhang, JR
    Zhu, JJ
    Chen, HY
    [J]. INORGANIC CHEMISTRY, 2004, 43 (19) : 5877 - 5883
  • [8] The optical properties of metal nanoparticles: The influence of size, shape, and dielectric environment
    Kelly, KL
    Coronado, E
    Zhao, LL
    Schatz, GC
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (03) : 668 - 677
  • [9] Gold nanoparticle-based sensing of "spectroscopically silent" heavy metal ions
    Kim, YJ
    Johnson, RC
    Hupp, JT
    [J]. NANO LETTERS, 2001, 1 (04) : 165 - 167
  • [10] Preparation of silver dendritic nanoparticles using sodium polyacrylate in aqueous solution
    Lee, GJ
    Shin, SI
    Oh, SG
    [J]. CHEMISTRY LETTERS, 2004, 33 (02) : 118 - 119
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