Metal nanoparticle-decorated nanotubes for gas sensing

US11585771B2 · kind B2 · utility

Assignee

• Palo Alto Research Center Incorporated · US

Inventors

• Gabriel Iftime · Mississauga, CA
• Clinton Smith · San Francisco, US
• David Eric Schwartz · Redwood City, US
• Yong-Hang Zhang · Seattle, US
• Vedasri Vedharathinam · Fremont, US

Key dates

• Filing date: Feb 22, 2022
• Grant date: Feb 21, 2023
• Expiry date: Feb 22, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C2026/002
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed herein are methods of producing metal nanoparticle-decorated carbon nanotubes. The methods include forming a reaction mixture by combining a first solution with a second solution, wherein the first solution comprises polymer-coated metal nanoparticles comprising metallic nanoparticles coated with a polymer, and wherein the second solution comprises carbon nanotubes. The methods also include heating the reaction mixture to a temperature greater than a glass transition temperature of the polymer for a time sufficient to cause the polymer-coated metal nanoparticles to bind to the carbon nanotubes forming the metal nanoparticle-decorated carbon nanotubes.