Continuous flow synthesis of VO2 nanoparticles or nanorods by using a microreactor

Title: Continuous flow synthesis of VO2 nanoparticles or nanorods by using a microreactor

The invention provides a method for producing composite nanoparticles, the method using a first compound capable of transitioning from a monoclinic to a tetragonal rutile crystal state upon heating, and having the steps of subjecting the first compound to a hydrothermal synthesis to create anisotropic crystals of the compound; encapsulating the first compound with a second compound to create a core-shell construct; and annealing the construct as needed. Also provided is a device for continuously synthesizing composite nanoparticles, the device having a first precursor supply and a second precursor supply; a mixer to homogeneously combine the first precursor and second precursor to create a liquor; a first microreactor to subject the liquor to hydrothermic conditions to create an\isotropic particles in a continuous operation mode; and a second microreactor for coating the particles with a third precursor to create a core-shell construct.

Inventors:: Li, Jie; Sun, Yugang; Muehleisen, Ralph T.; Guzowski, Leah B.; Yan, Xiaojie; Dull, Samuel; Castano, Ioannina

Issue Date:: 2018-05-22

OSTI Identifier:: 1452900

Assignee:: UCHICAGO ARGONNE, LLC (Chicago, IL) ANL

Patent Number(s):: 9,975,804

Application Number:: 15/487,276

Contract Number:: AC02-06CH11357

Resource Relation:: Patent File Date: 2017 Apr 13

Research Org:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 36 MATERIALS SCIENCE

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Other works cited in this record:

Controlled growth of monodisperse silica spheres in the micron size range
journal, January 1968

Stöber, Werner; Fink, Arthur; Bohn, Ernst
Journal of Colloid and Interface Science, Vol. 26, Issue 1, p. 62-69
DOI: 10.1016/0021-9797(68)90272-5

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