The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Jun. 22, 2022
Applicant:
Industry-academia Cooperation Group of Sejong University, Seoul, KR;
Inventors:
Nae Sung Lee, Seoul, KR;
Syed Muhammad Zain Mehdi, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/16 (2017.01); B01J 19/08 (2006.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
C01B 32/16 (2017.08); B01J 19/088 (2013.01); B01J 2219/0839 (2013.01); B01J 2219/0845 (2013.01); B82Y 40/00 (2013.01); C01B 2202/06 (2013.01); C01B 2202/22 (2013.01); C01B 2202/36 (2013.01); C01P 2002/04 (2013.01); C01P 2002/54 (2013.01); C01P 2002/82 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2006/80 (2013.01);
Abstract
Disclosed are a multi-wall carbon nanotube (MWCNT) formed using arc discharge and a method for manufacturing the same. The carbon source of the anode and boron that is the doping source, are evaporated through arc discharge and then deposited on the surface of the cathode to form MWCNTs, and boron is evenly distributed in the multi-walls of the MWCNTs. Therefore, the outer diameter of the MWCNT is reduced, high thermal stability is secured, and the effect of improving the field emission characteristics can be obtained.