Formation of cobalt ferrite nanopowders in an impinging-jets microreactor

Abstract

The dependence of cobalt ferrite nanosized powder production process on the synthesis method and conditions was studied. The paper shows the possibility for producing nanocrystalline CoFe 2 O 4 with an average particle size of 12 nm under conditions of an impinging-jets microreactor at room temperature. The influence exerted by the parameters of process implementation in the microreactor on phase formation in the CoO-Fe 2 O 3 -H 2 O system was analyzed.

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

“…At the same time, the organization of such conditions that allow the reagents to be distributed at the molecular or ionic level with the necessary degree of uniformity of their distribution in micro-volumes is an obvious prerequisite for obtaining nanoparticles with specified characteristics. Previously, the possibility of synthesis of nanoscale particles of oxides and fluorides in microreactors with impinging jets [67][68][69][70] and in microreactors with intensely swirling flows [67,[71][72][73][74] was experimentally proved. The influence of specific energy dissipation rate on micromixing quality was demonstrated experimentally by means of iodide-iodate method widely used for microreactors with ultimate level of micromixing [74].…”