Synthesis of palladium nanoparticles using continuous flow microreactor

Sharada, Shaama Mallikarjun; Suryawanshi, Prashant L.; Kumar, P. Rathish; Gumfekar, Sarang P.; Narsaiah, T. Bala; Sonawane, Shirish H.

doi:10.1016/j.colsurfa.2016.03.068

Cited by 42 publications

(15 citation statements)

References 52 publications

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“…As shown in Figure 2B, it was observed that the λ max value obtained is between 480 and 490 nm for all cases at different flow rates in AFR™ in the presence of CTAB surfactant. The heartshaped design in AFR™ gives superior mixing, however, the residence time is higher in the case of AFR™ as compared to the MR and hence the particle size was higher in the case of AFR™ as compared to the MR and also the PSD was more wider in the case of AFR™ as compared to the MR. Due to the higher residence time in AFR™ higher extent of crystal growth of NPs occurs after short nucleation time resulting in higher size and also wider distribution [53][54][55][56]. From the data obtained for the UV absorbance spectra and average particle size (Table 1), it was established that the iron oxide NPs prepared in AFR™ have higher particle size compared to that obtained in the case of the MR, attributed to higher residence time in AFR™.…”

Section: Reaction Mechanism For the Formation Of Iron Oxide Nanopartimentioning

confidence: 76%

Synthesis of iron oxide nanoparticles in a continuous flow spiral microreactor and Corning® advanced flow™ reactor

Suryawanshi

Sonawane

Bhanvase

et al. 2018

Green Processing and Synthesis

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Abstract:In the present work, synthesis of iron oxide nanoparticles (NPs) using continuous flow microreactor (MR) and advanced flow™ reactor (AFR™) has been investigated with evaluation of the efficacy of the two types of MRs. Effect of the different operating parameters on the characteristics of the obtained NPs has also been investigated. The synthesis of iron oxide NPs was based on the co-precipitation and reduction reactions using iron (III) nitrate precursor and sodium hydroxide as reducing agents. The iron oxide NPs were characterized using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy, and X-ray diffraction (XRD) analysis. The mean particle size of the obtained NPs was less than 10 nm at all flow rates (over the range of 20−60 ml/h) in the case of spiral MR, while, in the case of AFR™, the particle size of NPs was below 20 nm with no specific trend observed with the operating flow rates. The XRD and TEM analyses of iron oxide NPs confirmed the crystalline nature and nanometer size range, respectively. Further, magnetic properties of the synthesized iron oxide NPs were studied using electron spin resonance spectroscopy; the resonance absorption peak shows the g-factor values as 2.055 and 2.034 corresponding to the magnetic fields of 319.28 and 322.59 mT for MR and AFR™, respectively.

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Section: Reaction Mechanism For the Formation Of Iron Oxide Nanopartimentioning

confidence: 76%

Synthesis of iron oxide nanoparticles in a continuous flow spiral microreactor and Corning® advanced flow™ reactor

Suryawanshi

Sonawane

Bhanvase

et al. 2018

Green Processing and Synthesis

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“…The mixing junction in microchannels decides the synthesis rate, morphology, and size of the ultimately formed nanoparticle. Sharada et al [ 47 ] carried out the reduction of a palladium precursor (PdCl 2 ) with the help of NaBH 4 to obtain Pd nanoparticles. They used a simple capillary microreactor and injected PdCl 2 and NaBH 4 through the T-junction at the inlet of the capillary illustrated in Figure 4 .…”

Section: Nanoparticles Synthesis Using Microreactorsmentioning

confidence: 99%

Process Intensification Approach Using Microreactors for Synthesizing Nanomaterials—A Critical Review

et al. 2021

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Nanomaterials have found many applications due to their unique properties such as high surface-to-volume ratio, density, strength, and many more. This review focuses on the recent developments on the synthesis of nanomaterials using process intensification. The review covers the designing of microreactors, design principles, and fundamental mechanisms involved in process intensification using microreactors for synthesizing nanomaterials. The microfluidics technology operates in continuous mode as well as the segmented flow of gas–liquid combinations. Various examples from the literature are discussed in detail highlighting the advantages and disadvantages of microfluidics technology for nanomaterial synthesis.

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“…Apart from semiconducting nanoparticles, laminar continuous MDs have also been used to fabricate Ag, palladium, Au, Fe, and polymeric particles . Carboni et al controlled the synthesis of Ag nanoprisms using NaBH 4 (reducing agent), AgNO 3 , trisodium citrate dehydrate (capping agent), and H 2 O 2 (oxidizing agent), using a flow focusing MD, demonstrating for the first time that the optical properties of triangular shaped silver nanoprisms can be tuned in a MD without a seed‐mediated approach ( Figure a).…”

Section: Classification Of Microfluidic Synthesis Systemsmentioning

confidence: 99%

Microfluidic Devices in Fabricating Nano or Micromaterials for Biomedical Applications

Luo

Zhang

et al. 2019

Adv Materials Technologies

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Nano or microsized particles have been a research focus for decades, and the advancement of microfluidic technologies provides alternative strategies for the synthesis of such materials for various applications. Recent advances of using different microfluidic devices (MDs), including continuous laminar flow, segmented flow, droplet‐based, and other non‐chip‐based microreactors, for the synthesis of nano or microsized particles with specific properties are reviewed, along with their biomedical applications. Different categories of particles fabricated in MDs are summarized to highlight the wide application of the processing platform in the development of novel functional materials.

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Synthesis of palladium nanoparticles using continuous flow microreactor

Cited by 42 publications

References 52 publications

Synthesis of iron oxide nanoparticles in a continuous flow spiral microreactor and Corning® advanced flow™ reactor

Synthesis of iron oxide nanoparticles in a continuous flow spiral microreactor and Corning® advanced flow™ reactor

Process Intensification Approach Using Microreactors for Synthesizing Nanomaterials—A Critical Review

Microfluidic Devices in Fabricating Nano or Micromaterials for Biomedical Applications

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