Electrohydrodynamically formed structures of carbonaceous material

US10920334B2 · kind B2 · utility

Assignee

• THE TRUSTEES OF PRINCETON UNIVERSITY · US

Inventors

• Ilhan A. Aksay · Princeton, US
• Valerie Alain-Rizzo · Princeton Junction, US
• Michael Bozlar · Princeton, US
• David J. Bozym · Princeton, US
• Daniel M. Dabbs · Princeton, US
• Nicholas Szamreta · Sayreville, US
• Cem Bulent USTUNDAG · Plainsboro, US

Key dates

• Filing date: Mar 21, 2017
• Grant date: Feb 16, 2021
• Expiry date: Oct 20, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2204/22
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method for the electrohydrodynamic deposition of carbonaceous materials utilizing an electrohydrodynamic cell comprising two electrodes comprised of a conductive material, by first combining a solid phase comprising a carbonaceous material and a suspension medium, placing the suspension between the electrodes, applying an electric field in a first direction, varying the intensity of the electric field sufficiently to drive lateral movement, increasing the electrical field to stop the lateral transport and fix the layers in place, then removing the applied field and removing the electrodes. Among the many different possibilities contemplated, the method may advantageously utilize: varying the spacing between the electrodes; removing the buildup from one or both electrodes; placing the electrodes into different suspensions; adjusting the concentration, pH, or temperature of the suspension(s); and varying the direction, intensity or duration of the electric fields.