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High-concentration Facile Synthesis of Self-assembled Micronsized Flower Silver Particles by Stainless Steel- Assisted Vitamin C Reduction Method
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High-concentration Facile Synthesis of Self-assembled Micronsized Flower Silver Particles by Stainless Steel- Assisted Vitamin C Reduction Method
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Jiangsu University of Technology Natural Science Foundation (KYY11101)

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    摘要:

    以AgNO3為原料，在不銹鋼輔助的條件下，通過Vc還原的方法快速合成了微米花球狀A(yù)g。產(chǎn)物的形貌和相結(jié)構(gòu)用掃描電子顯微鏡（SEM）、透射電子顯微鏡（TEM）和X 射線粉末衍射（XRD）進行了表征。通過改變反應(yīng)溫度和不銹鋼可以獲得1~6 μm的片狀花球Ag和棒狀花球Ag。對花狀A(yù)g的形成機理進行了探討，其花狀結(jié)構(gòu)由多個納米片或納米棒團聚而成。

    Abstract:

    Self-assembled micronsized flower silver (Ag) particles were synthesized using AgNO3 as starting material by a stainless steel assisted vitamin C (Vc) reduction method. X-ray diffractometer (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to characterize the phases and the morphologies of the products. The results show that the micronsized flower Ag particles with 1~ 6 μm size can be rapidly and routinely produced on relatively large scales, which are composed of nanoplates or nanorods with the thickness of around 200 nm. The growth process of the micronsized flower Ag particles was investigated and their growth mechanism was proposed. It is revealed that the micronsized flower Ag particles might be assembled from small particles step by step. The presence of stainless steel and temperature plays an important role in determining the geometric shape and the size of micronsized flower Ag particles.

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張春勇,關(guān)明云,鄭純智,舒 莉,張國華,吳 桐. High-concentration Facile Synthesis of Self-assembled Micronsized Flower Silver Particles by Stainless Steel- Assisted Vitamin C Reduction Method[J].稀有金屬材料與工程,2014,43(12):2943~2947.[Zhang Chunyong, Guan Mingyun, Zheng Chunzhi, Shu Li, Zhang Guohua, Wu Tong. High-concentration Facile Synthesis of Self-assembled Micronsized Flower Silver Particles by Stainless Steel- Assisted Vitamin C Reduction Method[J]. Rare Metal Materials and Engineering,2014,43(12):2943~2947.]
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  • 收稿日期:2013-12-16
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  • 在線發(fā)布日期: 2015-04-16
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