Continuous synthesis of copper nanoparticles using a polyol process in a milli-channel reactor

Gande, Vamsi Vikram; Pushpavanam, S.

doi:10.1007/s41981-021-00169-y

Cited by 9 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Efforts to synthesize stable zero-valent copper nanoparticles face oxidation susceptibility. However, this challenge can be addressed by employing a copper amine complex as a precursor, ascorbic acid as a reducing agent and polyvinyl pyrrolidone as a capping agent [39]. Moreover, studies indicated that using glycerol in CuNPs synthesis offers advantages such as cost-effectiveness, non-toxic nature, mild reducing properties, efficient supramolecular network establishment that immobilizes metal nanoparticles and prevention of re-oxidation [40].…”

Section: Synthesis Of Nanoparticles and Nanocomposites In Polyolmentioning

confidence: 99%

Polyol Synthesis of Nanoparticles: A Decade of Advancements and Insights

Khulbe,

Kandpal,

Prasad

et al. 2023

ajc

View full text Add to dashboard Cite

This article presents a focused overview of advancements in the field of polyol synthesis of metal, metal oxide nanoparticles and nanocomposites, specifically those reported in the current decade. The aim of this article is to present the pertinent physico-chemical factors associated with nanoparticle synthesis in polyol solutions, highlighting their applications in both biological and industrial domains. The scope of this review article is selective rather than exhaustive, concentrating on noteworthy contributions to polyol nanoparticle synthesis that hold potential for refining synthesis methods. To comprehend the role of polyols in nanoparticle synthesis, an examination of the distinct physical properties of various polyols is crucial. Moreover, understanding the particular functions and mechanisms governing nanoparticle formation is imperative in this context.

show abstract

Section: Synthesis Of Nanoparticles and Nanocomposites In Polyolmentioning

confidence: 99%

Polyol Synthesis of Nanoparticles: A Decade of Advancements and Insights

Khulbe,

Kandpal,

Prasad

et al. 2023

ajc

View full text Add to dashboard Cite

show abstract

“…For commercial-scale production of nanomaterials, batch processes are not desired as it is difficult to maintain uniform quality of the product. This necessitates the need for a continuous process as it facilitates precise particle size control, , good reproducibility, and supports process automation. , …”

Section: Introductionmentioning

confidence: 99%

Continuous Synthesis and Separation of Silver Nanoparticles Using an Aqueous Two-Phase System

Gande,

Savitha,

Pushpavanam

2023

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

Continuous synthesis of metal nanoparticles enables good control on quality and supports process automation. In this work, we have used a biocompatible aqueous two-phase system (ATPS) for the continuous synthesis of nanoparticles. We propose the use of a milli-channel to lower the capillary number. This ensures the dominance of interfacial forces and the system exhibits segmented flow in ATPS. The chaotic advection-based mixing within each slug is exploited for nanoparticle synthesis. Herein, we report for the first time the continuous synthesis and separation of silver nanoparticles using ATPS formed by polyethylene glycol 6000 and tri-sodium citrate. The phase separation in ATPS was explored for nanoparticle trapping at the interface. We investigated six different operating procedures based on the occurrence of mass transfer (ATPS formation) after, during, and before the reaction (synthesis) in both batch and continuous modes of synthesis. We believe the dominance of Van der Waals force over convective force is responsible for nanoparticle trapping at the interface. The physico-chemical properties of the nanoparticle obtained from different synthesis modes were characterized using localized surface plasma resonance and electron microscopy. The continuous mode of operation resulted in the shape-controlled synthesis of a nanoparticle compared to the batch process. The use of two-phase flow in the continuous mode eliminated the additional downstream step for particle separation. This has the potential for high-throughput nanoparticle production at the commercial scale.

show abstract