Pengcheng C Chen

US Patent:

20200407812, Dec 31, 2020

Filed:

Jun 26, 2020

Appl. No.:

16/913461

Inventors:

- Evanston IL, US
Liban Jibril - Evanston IL, US
Pengcheng Chen - Evanston IL, US

International Classification:

C21D 1/607
B01J 19/00

Abstract:

Disclosed herein are methods for forming one or more nanoparticles. The methods include depositing a solution comprising a block copolymer and a metal salt into one or more square pyramidal nanoholes formed in a substrate, and annealing the substrate to provide a single nanoparticle in each of the one or more square pyramidal nanoholes.

US Patent:

20200310248, Oct 1, 2020

Filed:

Mar 27, 2020

Appl. No.:

16/832453

Inventors:

- Evanston IL, US
Pengcheng Chen - Evanston IL, US
Yuan Liu - Evanston IL, US
Jingshan Du - Evanston IL, US

International Classification:

G03F 7/00
C09D 11/102
C08K 5/56
C08G 65/48

Abstract:

A method of preparing a metal nanoparticle can include depositing an ink on a substrate using nanolithography to form a polymer reactor, wherein the ink comprises at least one metalloporphyrin functionalized polymer comprising a metal ion, porphyrin, and a polyethylene oxide polymer; and thermally annealing the polymer nanoreactor under conditions sufficient to form the nanoparticle. The thermal annealing can include a first stage that includes annealing the polymer nanoreactor at a temperature of about 100 C. to about 350 C. for a time sufficient to aggregate the metal ions in the polymer reactor, and a second stage that includes annealing the aggregated polymer nanoreactor at a temperature of about 500 C. to about 600 C. for a time sufficient to reduce the metal ion and decompose a polymer component of the polymer nanoreactor to thereby form the metal nanoparticle.