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

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 mol...

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Main Authors: Jie-Jun Zhu, Cai-Xia Kan, Jian-Guo Wan, Min Han, Guang-Hou Wang
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2011/982547
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spelling doaj-069a0eb45e0c4d598248423ebfe27b1a2020-11-24T22:48:55ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292011-01-01201110.1155/2011/982547982547High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol ProcessJie-Jun Zhu0Cai-Xia Kan1Jian-Guo Wan2Min Han3Guang-Hou Wang4National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, ChinaCollege of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, ChinaNational Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, ChinaPolyvinyl 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.http://dx.doi.org/10.1155/2011/982547
collection DOAJ
language English
format Article
sources DOAJ
author Jie-Jun Zhu
Cai-Xia Kan
Jian-Guo Wan
Min Han
Guang-Hou Wang
spellingShingle Jie-Jun Zhu
Cai-Xia Kan
Jian-Guo Wan
Min Han
Guang-Hou Wang
High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
Journal of Nanomaterials
author_facet Jie-Jun Zhu
Cai-Xia Kan
Jian-Guo Wan
Min Han
Guang-Hou Wang
author_sort Jie-Jun Zhu
title High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
title_short High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
title_full High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
title_fullStr High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
title_full_unstemmed High-Yield Synthesis of Uniform Ag Nanowires with High Aspect Ratios by Introducing the Long-Chain PVP in an Improved Polyol Process
title_sort high-yield synthesis of uniform ag nanowires with high aspect ratios by introducing the long-chain pvp in an improved polyol process
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2011-01-01
description 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.
url http://dx.doi.org/10.1155/2011/982547
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