Generation of metal nanoparticles in a microchannel reactor

Wagner, Julian; Kirner, T.; Mayer, Günter; Albert, Jens; Köhler, J. Michael

doi:10.1016/j.cej.2003.11.021

Cited by 156 publications

(90 citation statements)

References 27 publications

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“…Drop or particle formation technique using microchannels, microfluidic arrays or microreactors has been proposed as a novel method for preparation of micro-sized liquid drops, metal nanoparticles, nanoscale particles of phospholipids and solid lipid microspheres (Sugiura et al, 2000;Takagi et al, 2004;Wagner et al, 2004;Jahn et al, 2004;Van der Graaf et al, 2005;Salazar-Alvarez et al, 2006;Vladisavljevi c et al, 2008;Kockmann et al, 2008;Ying et al, 2008). Due to relatively more stable fluid field and effective mass transfer efficiency in these microsystems, the obtained drops or nanoparticles always have narrow size distribution.…”

Section: Introductionmentioning

confidence: 99%

Formation of solid lipid nanoparticles in a microchannel system with a cross-shaped junction

Zhang

Yun

Shen

et al. 2008

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 99%

Formation of solid lipid nanoparticles in a microchannel system with a cross-shaped junction

Zhang

Yun

Shen

et al. 2008

Chemical Engineering Science

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“…Microfluidic technologies offer a variety of advantages over traditional technologies in the synthesis of nanoparticles, including a shorter reaction time, less sample consumption and a uniform particle size. In the case of gold nanoparticles synthesis, some preliminary examples have been recently described by Wagner et al (2004). Using sodium borohydride or ascorbic acid as the reducing agents and various microreactor configurations, the authors optimized the experimental parameters to obtain narrow size distributions which were at average two times narrower than those obtained in a conventional synthesis.…”

Section: Synthesis In Microfluidic Systemmentioning

confidence: 98%

Gold nanoparticle synthesis in microfluidic systems and immobilisation in microreactors designed for the catalysis of fine organic reactions

Ftouni

Girardon

Penhoat³

et al. 2011

Microsyst Technol

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Our work is focused on two applications of fine tunable microfluidic systems, first to optimize heterogeneous size nanoparticle synthesis and second to build catalytic microreactors for advanced organic reactions. The first part of our work consists in the use of an original microfluidic setup for gold nanoparticle synthesis, which allows a high control of the reaction parameters as the reactants flow, the concentration, the temperature, and the reaction time. We show that using such microfluidic systems permit a better control of the reaction parameters for producing homodispersed 1-2 nm gold nanoparticle. The second part of our work deals with the incorporation of gold nanoparticles into silica capillaries to build catalytic microreactors dedicated to fine chemical reactions. Our strategy consists in the immobilization of gold nanopadiegolirticles onto the inner surface (2D dispersion) or into the inner volume (3D dispersion) of functionalized silica microcapillaries. Characterizations show that by different functionalization procedures, those gold nanoparticles are well anchored inside the microcapillary.

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“…[108] Es wurde über Synthesen von Gold-, [109][110][111][112][113][114] Silber-, [32,115] Kupfer- [116] und Palladiumnanopartikeln [117] in Mikrofluidikreaktoren berichtet. Aufgrund ihrer stark gesteigerten Lichtabsorption (Mie-Streuung) im Bereich der Plasmonenresonanzwellenlänge [118][119][120] Abbildung 14).…”

Section: Synthese Metallischer Nanopartikelunclassified

Mikrofluidik in der anorganischen Chemie

2010

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In den letzten Jahren hat die Mikrofluidik in der Chemie stark an Bedeutung gewonnen. Miniaturisierte chemische Vorrichtungen ermöglichen einen kontrollierten Flüssigkeitstransport und schnelle chemische Reaktionen und sind darüber hinaus Kosten sparend, wenn man sie mit konventionellen Reaktoren vergleicht. Sowohl in der (Bio‐)Analytik als auch in der organischen Synthese werden diese Vorteile bereits ausgiebig genutzt, weniger hingegen in der anorganische Chemie und den Materialwissenschaften. Dennoch wird diese Thematik auch in der Anorganik bei der Entwicklung von Mikroreaktoren für die Trennung und selektive Extraktion von Metallionen gestreift. Bei Funktionsmaterialien wird die Mikrofluidik hauptsächlich für Verbesserungen in der Synthese von Nanopartikeln (besonders von Metall‐, Metalloxid‐ und Halbleiternanopartikeln) eingesetzt. Mikrofluidiktechniken können auch für die Entwicklung von komplizierteren anorganischen (Hybrid‐)Materialien genutzt werden.

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Generation of metal nanoparticles in a microchannel reactor

Cited by 156 publications

References 27 publications

Formation of solid lipid nanoparticles in a microchannel system with a cross-shaped junction

Formation of solid lipid nanoparticles in a microchannel system with a cross-shaped junction

Gold nanoparticle synthesis in microfluidic systems and immobilisation in microreactors designed for the catalysis of fine organic reactions

Mikrofluidik in der anorganischen Chemie

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