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RESEARCH PRODUCT
Continuous-Flow Synthesis of Ni(0) Nanoparticles Using a Cone Channel Nozzle or a Micro Coaxial-Injection Mixer
Ingo MinrathJulian SchüleinJulian SchüleinRainer PommersheimHolger LöweHolger Löwesubject
Fluid Flow and Transfer ProcessesMaterials scienceOrganic ChemistryHydrazineNozzleAnalytical chemistryNanoparticleNanochemistrychemistry.chemical_elementResidence time (fluid dynamics)chemistry.chemical_compoundNickelchemistryChemical engineeringChemistry (miscellaneous)Tube (fluid conveyance)Coaxialdescription
To synthesize nickel(0) nanoparticles by wet chemical reduction using hydrazine with an average size distribution below 100 nm, two different reactor concepts were developed. With a cone channel nozzle, the reactant solutions were sprayed into a batch for further processing and reduction at elevated temperatures. Another concept uses a micro-coaxial injection mixer connected to a heated tube to establish a fully continuously operating reactor. To shorten the time for reduction of the nickel, salt temperatures up to 180 °C are applied. To avoid uncontrolled residence time, the whole system was pressurized up to 80 bar. Approximately 80 L reactant solution, i.e., 1 kg nickel(0) nanoparticles, could be processed within 30 h.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-03-23 | Journal of Flow Chemistry |