Patent ID: 11897766
Assignee: SHOEI CHEMICAL INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method for producing copper-selenide nanoparticles by flow process, the method comprising:
forming a flowable copper precursor by combining a copper starting material and a ligand;
forming a flowable selenium precursor by suspending a selenium starting material in a liquid;
forming a flowable copper-selenium mixture by combining the flowable copper precursor and the flowable selenium precursor, the flowable copper-selenium mixture including a lower-polarity solvent;
forming a segmented flow of the flowable copper-selenium mixture by appending a segment of an immiscible, non-reacting fluid to each of a series of fixed-length segments of the flowable copper-selenium mixture;
forming a solution containing copper-selenide nanoparticles by conducting the segmented flow of the flowable copper-selenium mixture through at least one heating unit; and
isolating the nanoparticles of copper selenide in an oxygen-depleted environment, including combining the solution containing copper-selenide nanoparticles and a deoxygenated, higher-polarity solvent to precipitate the nanoparticles of copper selenide, the higher-polarity solvent being more polar than the lower-polarity solvent.