Recent advances in micro reaction technology

Wiles, Charlotte; Watts, Paul

doi:10.1039/c1cc00089f

Cited by 247 publications

(112 citation statements)

References 181 publications

(170 reference statements)

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“…However, characterizing fast and highly exothermal reactions exhibit a high risk in conventional equipment [7]. Here, miniaturized equipment can lower the risk potential and enable accurate measurements with low consumption of chemicals [8].…”

Section: Introductionmentioning

confidence: 99%

Reaction Calorimetry for Exothermic Reactions in Plate‐Type Microreactors Using Seebeck Elements

et al. 2017

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Dedicated to Professor Rüdiger Lange on the occasion of his 65th birthdayA flexible reactor and measurement setup to safely obtain thermokinetic data for exothermic chemical reactions in plate-type microreactors is presented. Precise heat flux measurement is realized by means of Seebeck elements and allows for direct as well as space-and time-resolved heat flux determination across the reactor. The microreactor used in this work is manufactured from poly(vinylidene fluoride) foils and consists of 11 SZ-shaped mixing channel elements. The Seebeck elements are calibrated by the Joule effect, while its performance is demonstrated in heat transfer and neutralization reaction experiments. Furthermore, the local resolution enables an estimation of mixing time scale for rapid reactions. A comparison of obtained results indicates good accordance with literature data and is the base of further investigations using the calorimeter.

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Section: Introductionmentioning

confidence: 99%

Reaction Calorimetry for Exothermic Reactions in Plate‐Type Microreactors Using Seebeck Elements

et al. 2017

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“…Several advantages derive from this strategy, including continuous product formation, simple catalyst separation and its re-use, and less waste. Microreactors exhibit large surface-to-volume ratios which, along with an improved heat and mass transfer, offer a huge surface available for functionalization, a key feature in the heterogenization of a chemical process [2][3][4]. As pointed out by Kirschning et al [5] already some years ago, organic chemistry is moving towards a new dawn characterized by the use of enabling techniques and the quest for new synthetic technology platforms.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Acid Catalysis Using a Perfluorosulfonic Acid Monolayer-Functionalized Microreactor

Ricciardi¹,

Huskens²,

Verboom³

2013

J Flow Chem

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The inner walls of a glass microreactor were functionalized in a one-step procedure with a single layer of a strong perfluoroalkylsulfonic acid. The applicability of the catalytic device was demonstrated in the successful hydrolysis of benzaldehyde dimethyl acetal in acetonitrile, achieving quantitative conversion within a residence time of only 60 s. Furthermore, the catalytic system showed high conversion for the Friedlander quinoline synthesis between 2-aminobenzophenone and ethyl acetoacetate. The cyclization of pseudoionone in methylcyclohexane proved the wide applicability of the acid-functionalized microreactor also for reactions carried out in apolar media. The platform showed activity for 6 h to 2 days, depending on the solvent, and was reactivated by simple treatment with the catalyst precursor.

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“…6,7 Among various microfluidic technology that have been developed, microreactor systems are becoming increasing popular for fabricating materials. 8,9 Compared to conventional batch reactions, the microreactor shows unique advantages such as continuous processing and highly controlled reaction conditions. 2 As a crucial component in a microreactor device, micromixers play a crucial role in fully mixing of different reagents.…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet-assisted microfluidic generation of ferroelectric composite particles

Zhang

You

et al. 2016

Biomicrofluidics

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We report on the feasible fabrication of microfluidic devices for ferroelectric polymers' synthesis in a rapid and stable fashion. Utilizing micro-mixing and flowfocusing in microchannels, poly(vinylidene fluoride-trifluoroethylene) and copper phthalocyanine are uniformly dispersed in one hydrogel particle, which are then demonstrated to immediate and complete on-chip steady polymerization by moderate ultraviolet treatment. The advantage of our droplet-based microfluidic devices is generating versatile particles from simple spheres to disks or rods, and the lengths of particles can be precisely tuned from 30 to 400 lm through adjusting the flow rates of both disperse and oil phases. In addition, this mixed technique allows for the continuous production of dielectric microparticles with controlled dielectric properties between 10 and 160. Such a microfluidic device offers a flexible platform for multiferroic applications. V C 2016 AIP Publishing LLC.

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Recent advances in micro reaction technology

Cited by 247 publications

References 181 publications

Reaction Calorimetry for Exothermic Reactions in Plate‐Type Microreactors Using Seebeck Elements

Reaction Calorimetry for Exothermic Reactions in Plate‐Type Microreactors Using Seebeck Elements

Heterogeneous Acid Catalysis Using a Perfluorosulfonic Acid Monolayer-Functionalized Microreactor

Ultraviolet-assisted microfluidic generation of ferroelectric composite particles

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