Aqueous carbon dioxide foam stabilized by organic Janus nanosheets and preparation method and application thereof

US12305106B2 · kind B2 · utility

Assignee

• China University of Petroleum—Beijing · CN

Inventors

• Qichao Lv · Beijing, CN
• Tongke Zhou · Beijing, CN
• Zhengen Gao · Beijing, CN
• Abdolhossein Hemmati-Sarapardeh · Beijing, CN
• Zilong Liu · Hangzhou City, CN
• Hossein Jalalifar · Beijing, CN
• Rong Zheng · San Jose, US
• Longxuan Li · 象珠镇, CN
• Zhaoxia Dong · Beijing, CN

Key dates

• Filing date: May 24, 2023
• Grant date: May 20, 2025
• Expiry date: Sep 19, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An aqueous carbon dioxide foam stabilized by organic Janus nanosheets, a preparation method and application thereof. The preparation method can be provided as: S1: subjecting molecules with hydrophobic tail to spontaneous and ordered arrangement in a mixture of ethanol and water; S2: adding molecules with hydrophilic head to the solution of S1, and adjusting a pH value to 6.0-6.5 to perform a synthesis of organic Janus nanosheet monomers; S3: adding ethanol to the solution of S2, and adjusting the pH value to 6.0-6.5 to perform a heating reflux; then adjusting the pH value to 7.0-8.0, and adding sodium ethylate, adjusting a temperature to 70-85° C. to perform a reaction under an inert atmosphere, and then adjusting the pH to 8.0-9.0, and stirring to be completely dissolved. The aqueous CO2 foam is prepared from CO2 and a liquid phase.