Salt-mediated polyol synthesis of silver nanowires in a continuous-flow tubular reactor

Chou, Kan‐Sen; Hsu, Chung-Yen; Liu, Bo‐Tau

doi:10.1039/c5ra00320b

Cited by 7 publications

(3 citation statements)

References 41 publications

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“…Flow chemistry is now seen as a reliable approach for the synthesis of simple organic compounds [ 1 – 6 ], complex large molecular weight medicinal drugs [ 7 – 12 ], polymeric materials [ 13 – 15 ], nanomaterials (metallic, bimetallic, composites, metal oxides, etc.) [ 16 – 18 ], catalysts [ 7 , 19 ], etc. In the recent times, the applicability of this tool has been extended for the synthesis of high value drugs involving multiple reaction steps including separation protocols [ 8 – 9 20 ].…”

Section: Reviewmentioning

confidence: 99%

Assessing the possibilities of designing a unified multistep continuous flow synthesis platform

Sharma¹,

Acharya²,

Shukla³

et al. 2018

Beilstein J. Org. Chem.

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The multistep flow synthesis of complex molecules has gained momentum over the last few years. A wide range of reaction types and conditions have been integrated seamlessly on a single platform including in-line separation as well as monitoring. Beyond merely getting considered as ‘flow version’ of conventional ‘one-pot synthesis’, multistep flow synthesis has become the next generation tool for creating libraries of new molecules. Here we give a more ‘engineering’ look at the possibility of developing a ‘unified multistep flow synthesis platform’. A detailed analysis of various scenarios is presented considering 4 different classes of drugs already reported in the literature. The possible complexities that an automated and controlled platform needs to handle are also discussed in detail. Three different design approaches are proposed: (i) one molecule at a time, (ii) many molecules at a time and (iii) cybernetic approach. Each approach would lead to the effortless integration of different synthesis stages and also at different synthesis scales. While one may expect such a platform to operate like a ‘driverless car’ or a ‘robo chemist’ or a ‘transformer’, in reality, such an envisaged system would be much more complex than these examples.

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Section: Reviewmentioning

confidence: 99%

Assessing the possibilities of designing a unified multistep continuous flow synthesis platform

Sharma¹,

Acharya²,

Shukla³

et al. 2018

Beilstein J. Org. Chem.

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show abstract

“…The synthesis herein referred to is very often carried out with the presence of a mediating agent [21,22], which, with the silver ions occurring in the reaction environment, forms sparsely soluble compounds, e.g., chlorides [23], bromides [24], sulphides [20] and carbonates [25]. The addition of mediating agents provides electrostatic stabilisation of the newly formed nuclei.…”

Section: Introductionmentioning

confidence: 99%

Rapid Synthesis of Silver Nanowires in the Polyol Process with Conventional and Microwave Heating

2023

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Silver nanowires (AgNWs) represent an excellent material for many advanced applications due to their thermal and electrical properties. However, synthesising materials with the desired characteristics requires knowledge of the parameters affecting their size and an appropriate fabrication method. This paper presents a study on the synthesis of silver nanowires using the polyol process by conventional and microwave heating. Various polyols (1,2-ethanediol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol) with different viscosities and dielectric properties were used as reductants. It resulted in nanowires with an average diameter of 119–198 nm. It was found that, in contrast to the viscosity and dielectric constant of the alcohol used, the heating method had a limited effect on the average diameter and length value of the final product. The performed studies indicate an optimal strategy for fabricating one-dimensional silver nanostructures using the polyol method.

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“…Although the flow microreaction technology resulted in the production of a series of nanomaterials, most of these were still limited in the milligram-scale for lab research [ 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. To our knowledge, there are very few reports on the flow-chemistry synthesis of Ag NWs in mass production (i.e., kilogram-scale) [ 27 , 28 , 29 ]. In fact, compared to batch reaction, flow microreaction makes it relatively easy to increase production capacity via proportionately scaling-up the synthetic reactor or the system.…”

Section: Introductionmentioning

confidence: 99%

Scalable Production of High-Quality Silver Nanowires via Continuous-Flow Droplet Synthesis

Yang

Jiang

et al. 2022

Nanomaterials

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Silver nanowires (Ag NWs) have shown great potential in next-generation flexible displays, due to their superior electronic, optical, and mechanical properties. However, as with most nanomaterials, a limited production capacity and poor reproduction quality, based on the batch reaction, largely hinder their application. Here, we applied continuous-flow synthesis for the scalable and high-quality production of Ag NWs, and built a pilot-scale line for kilogram-level per day production. In addition, we found that trace quantities of water could generate sufficient vapor as a spacer under high temperature to efficiently prevent the back-flow or mixed-flow of the reaction solution. With an optimized synthetic formula, a mass production of pure Ag NWs of 36.5 g/h was achieved by a multiple-channel, continuous-flow reactor.

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Salt-mediated polyol synthesis of silver nanowires in a continuous-flow tubular reactor

Abstract: Silver nanowires were successfully synthesized by a polyol reduction method in a continuous-flow reactor with a yield of 2 g h−1.

Cited by 7 publications

References 41 publications

Assessing the possibilities of designing a unified multistep continuous flow synthesis platform

Assessing the possibilities of designing a unified multistep continuous flow synthesis platform

Rapid Synthesis of Silver Nanowires in the Polyol Process with Conventional and Microwave Heating

Scalable Production of High-Quality Silver Nanowires via Continuous-Flow Droplet Synthesis

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