Abstract
The polyol synthesis method is a popular approach for fabricating long silver nanowires. Additionally, the polyol method has been claimed to produce various shapes and sizes of nanoparticles by altering certain parameters of the reaction, such as the molecular weight of the solvent. Yet the effect of varying the molecular weight of the polyol solvent on the synthesis product is not well understood, since studies that report an effect that the solvent use substantially different procedures. Here, we analyze the effect of changing the polyol solvent, from ethylene glycol to poly(ethylene glycol) with different molecular weights, on the shape and size of silver nanoparticles using the same procedure. Using ethylene glycol, silver nanowires (up to 2 μm in length) are synthesized, similar to what has been widely reported. Under the same conditions, poly(ethylene glycol) of any molecular weight yields shorter nanoparticles (<500 nm) with different shapes. Additionally, the impacts that synthesis variables have differ with polyol molecular weight. Using ethylene glycol, chloride ions are required to obtain nanowires; the length of which can be shortened by adjusting the reaction time or the concentration of capping agent. Using poly(ethylene glycol), these synthesis variables have different outcomes: chloride ions do not affect the yield of anisotropic nanoparticles; neither does the concentration of the capping agent.
| Original language | English |
|---|---|
| Article number | 115067 |
| Journal | Materials Research Express |
| Volume | 6 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Oct 11 2019 |
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Keywords
- nanoparticles
- nanowiresethylene glycol
- poly(ethylene glycol)
- polyol
- silver
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Surfaces, Coatings and Films
- Polymers and Plastics
- Metals and Alloys
Cite this
Investigation of the role of polyol molecular weight in the polyol synthesis of silver nanoparticles. / Tracey, Jill I.; Aziz, Seerat; O'Carroll, Deirdre M.
In: Materials Research Express, Vol. 6, No. 11, 115067, 11.10.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation of the role of polyol molecular weight in the polyol synthesis of silver nanoparticles
AU - Tracey, Jill I.
AU - Aziz, Seerat
AU - O'Carroll, Deirdre M.
PY - 2019/10/11
Y1 - 2019/10/11
N2 - The polyol synthesis method is a popular approach for fabricating long silver nanowires. Additionally, the polyol method has been claimed to produce various shapes and sizes of nanoparticles by altering certain parameters of the reaction, such as the molecular weight of the solvent. Yet the effect of varying the molecular weight of the polyol solvent on the synthesis product is not well understood, since studies that report an effect that the solvent use substantially different procedures. Here, we analyze the effect of changing the polyol solvent, from ethylene glycol to poly(ethylene glycol) with different molecular weights, on the shape and size of silver nanoparticles using the same procedure. Using ethylene glycol, silver nanowires (up to 2 μm in length) are synthesized, similar to what has been widely reported. Under the same conditions, poly(ethylene glycol) of any molecular weight yields shorter nanoparticles (<500 nm) with different shapes. Additionally, the impacts that synthesis variables have differ with polyol molecular weight. Using ethylene glycol, chloride ions are required to obtain nanowires; the length of which can be shortened by adjusting the reaction time or the concentration of capping agent. Using poly(ethylene glycol), these synthesis variables have different outcomes: chloride ions do not affect the yield of anisotropic nanoparticles; neither does the concentration of the capping agent.
AB - The polyol synthesis method is a popular approach for fabricating long silver nanowires. Additionally, the polyol method has been claimed to produce various shapes and sizes of nanoparticles by altering certain parameters of the reaction, such as the molecular weight of the solvent. Yet the effect of varying the molecular weight of the polyol solvent on the synthesis product is not well understood, since studies that report an effect that the solvent use substantially different procedures. Here, we analyze the effect of changing the polyol solvent, from ethylene glycol to poly(ethylene glycol) with different molecular weights, on the shape and size of silver nanoparticles using the same procedure. Using ethylene glycol, silver nanowires (up to 2 μm in length) are synthesized, similar to what has been widely reported. Under the same conditions, poly(ethylene glycol) of any molecular weight yields shorter nanoparticles (<500 nm) with different shapes. Additionally, the impacts that synthesis variables have differ with polyol molecular weight. Using ethylene glycol, chloride ions are required to obtain nanowires; the length of which can be shortened by adjusting the reaction time or the concentration of capping agent. Using poly(ethylene glycol), these synthesis variables have different outcomes: chloride ions do not affect the yield of anisotropic nanoparticles; neither does the concentration of the capping agent.
KW - nanoparticles
KW - nanowiresethylene glycol
KW - poly(ethylene glycol)
KW - polyol
KW - silver
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UR - http://www.scopus.com/inward/citedby.url?scp=85073622400&partnerID=8YFLogxK
U2 - 10.1088/2053-1591/ab494c
DO - 10.1088/2053-1591/ab494c
M3 - Article
AN - SCOPUS:85073622400
VL - 6
JO - Materials Research Express
JF - Materials Research Express
SN - 2053-1591
IS - 11
M1 - 115067
ER -