Abstract: Apparatus for plasma synthesis of graphitic products including graphene, comprising: a plasma nozzle coupled to a reaction chamber; means for supplying a process gas to the plasma nozzle, the process gas comprising a carbon-containing species; and means for supplying radio frequency radiation to the process gas within the plasma nozzle, so as to produce a plasma within the nozzle in use, and thereby cause cracking of the carbon-containing species; wherein the plasma nozzle is arranged such that an afterglow of the plasma extends into the reaction chamber, the cracked carbon-containing species also passes into the reaction chamber, and the cracked carbon-containing species recombines within the afterglow, so as to form graphitic products including graphene. A method of plasma-synthesising graphitic products including graphene is also provided.
Type:
Application
Filed:
September 25, 2023
Publication date:
January 11, 2024
Applicant:
Levidian Nanosystems Limited
Inventors:
Dale Andrew PENNINGTON, Aaron Robert CLAYTON, Katarzyna Luiza JUDA, Catharina PAUKNER, Lukasz KURZEPA, Robert Henry ST. JOHN COOPER, Krzysztof Kazimierz KOZIOL, Jerome Yi-Zhe JOAUG
Abstract: Apparatus and method are disclosed for plasma synthesis of graphitic products including graphene. A plasma nozzle is coupled to a reaction chamber. A process gas is supplied to the plasma nozzle, the process gas comprising a carbon-containing species. Radio frequency radiation is supplied to the process gas within the plasma nozzle, so as to produce a plasma within the nozzle in use, and thereby cause cracking of the carbon-containing species. The plasma nozzle is arranged such that an afterglow of the plasma extends into the reaction chamber. The cracked carbon-containing species also passes into the reaction chamber, and the cracked carbon-containing species recombines within the afterglow, so as to form the graphitic products including graphene.
Type:
Grant
Filed:
June 12, 2015
Date of Patent:
October 31, 2023
Assignee:
LEVIDIAN NANOSYSTEMS LIMITED
Inventors:
Dale Andrew Pennington, Aaron Robert Clayton, Katarzyna Luiza Juda, Catharina Paukner, Lukasz Kurzepa, Robert Henry St. John Cooper, Krzysztof Kazimierz Koziol, Jerome Yi-Zhe Joaug