High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process | Zendy

Jiejun Zhu | Zendy; Caixia Kan | Zendy; Jianguo Wan | Zendy; Min Han | Zendy; Guanghou Wang | Zendy

Open Access

High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process

Author(s) -

Jiejun Zhu,

Caixia Kan,

Jianguo Wan,

Min Han,

Guanghou Wang

Publication year - 2011

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2011/982547

Subject(s) - polyol , materials science , nanowire , yield (engineering) , chemical engineering , aspect ratio (aeronautics) , nanotechnology , adsorption , composite material , polyurethane , organic chemistry , chemistry , engineering

Polyvinyl pyrrolidone (PVP) with different molecular weights was used as capping agent to synthesize silver nanowires through a polyol process. The results indicated that the yields and aspect ratios of silver nanowires were controlled by the chain length of PVP and increased with increasing the molecular weight (MW) of PVP. When the long-chain PVP-K90 (MW= 800,000) was used, the product was uniform in size and was dominated by nanowires with high aspect ratios. The growth mechanism of the nanowires was studied. It is proposed that the chemical adsorption of Ag+ on the PVP chains at the initial stage promotes the growth of Ag nanowires.

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