Congcong Chi

Congcong Chi

Associate Professor,Shaanxi University of Science and Technology

Presentation Title:

Synthesis of High Aspect Ratio of Silver Nanowires with Nickle Chloride

Time: TBD

Presentation Abstract:

Synthesis of High Aspect Ratio of Silver Nanowires with Nickle Chloride Congcong Chi (1,2,3*) , Jinfeng Lu (1) , Liang Xia (1) , Zhao Wang (1) , Meng Zhang (1) (1) College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xiʹan 710021, China (2) Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty paper, Shaanxi University of Science & Technology, Xiʹan 710021, China (3) National Experimental Teaching Demonstration Center of Light Chemistry Engineering, Shaanxi University of Science & Technology, Xiʹan 710021, China Silver nanowire is good for conductive ink and flexible transparent conductive film, due to its high transmittance and fine conductivity. Herein, polyol method and solvothermal method were used for the preparation of silver nanowires, with silver nitrate as silver source, ethylene glycol as reducing agent, polyvinyl pyrrolidone (PVP) as growth agent. Silver nanowires with low diameter and high aspect ratio were prepared by adding Nickel hexahydrate dichloride (NiCl 2 ·6H 2 O) as an complexing agent, which was beneficial for better uniformity and higher aspect ratio. The effect of reaction time, the concentration of NiCl 2 , the molar ratio of PVP to AgNO 3 on the silver morphology were discussed. Fig.1 SEM images of silver nanowires synthesized at different conditions (a: 160℃, 4 hours, NiCl 2 concentration 200μM, molar ratio of PVP to AgNO 3 1.5; b: 160℃, 10 hours, NiCl 2 concentration 200μM, molar ratio of PVP to AgNO 3 2:1)

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