Scalable process for producing exfoliated defect-free, non-oxidised 2-dimensional materials in large quantities

US10304937B2 · kind B2 · utility

Assignee

• THE PROVOST, FELLOWS, FOUNDATION SCHOLARS, AND THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN · IE

Inventors

• Jonathan Coleman · Dublin, IE
• Keith Paton · Dublin, IE

Key dates

• Filing date: Mar 14, 2014
• Grant date: May 28, 2019
• Expiry date: Jul 16, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for exfoliating untreated 3-dimensional material to produce a 2-dimensional material, said process comprising the steps of mixing the untreated 3-dimensional material in a liquid to provide a mixture; applying shear force to said mixture to exfoliate the 3-dimensional material and produce dispersed exfoliated 2-dimensional material in solution; and removing the shear force applied to said mixture, such that the dispersed exfoliated 2-dimensional material remains free and unaggregated in solution.