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Fabrication and characterization of nano silver powder prepared by spray pyrolysis

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Abstract

Silver powder was fabricated by spray pyrolysis, using 2%–20% AgNO3 solution, 336–500 mL/h flux of AgNO3 solution, 0.28–0.32 MPa flux of carrier gas and in the 620–820 °C temperature range. The effects of furnace set temperature, concentration of AgNO3 aqueous solution, flux of AgNO3 aqueous solution as well as carrier gas on the morphology and particle size distribution of silver powder, were investigated. The experimental results showed that with the high concentration of AgNO3 aqueous solution, the average grain size of silver decreased with the increasing of furnace set temperature. But the gain size distribution was not homogenous, the discontinuous grain growth occurred. With the low concentration of AgNO3 aqueous solution, the higher furnace set temperature made the nano sliver grains sintered together to grow. Nano silver powder about 100 nm was fabricated by spray pyrolysis, using 2wt% AgNO3 solutions, 336 mL/h flux of AgNO3 aqueous solution, 0.32 MPa flux of carrier gas at 720 °C furnace set temperature.

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Authors and Affiliations

  1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan, 430070, China

    Qiaoxin Zhang  (章桥新)

  2. State Key Laboratory of Advanced Technology for Materials Synthesis & Processing, Wuhan University of Technology, Wuhan, 430070, China

    Qiaoxin Zhang  (章桥新), Hao Liu, Xiaohui Wang, Xiaoliang Shi & Xinglong Duan

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  1. Qiaoxin Zhang  (章桥新)
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  2. Hao Liu
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  3. Xiaohui Wang
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  4. Xiaoliang Shi
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  5. Xinglong Duan
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Correspondence to Qiaoxin Zhang  (章桥新).

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Zhang, Q., Liu, H., Wang, X. et al. Fabrication and characterization of nano silver powder prepared by spray pyrolysis. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 871–874 (2009). https://doi.org/10.1007/s11595-009-6871-x

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  • DOI: https://doi.org/10.1007/s11595-009-6871-x

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