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:
Feb. 02, 2021
Filed:
Sep. 03, 2019
Applicant:
City University of Hong Kong, Kowloon, HK;
Inventors:
Assignee:
City University of Hong Kong, Kowloon, HK;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/96 (2006.01); C01B 32/158 (2017.01); C01B 32/168 (2017.01); C01B 32/16 (2017.01); C01B 32/164 (2017.01); B01J 21/18 (2006.01); B01J 35/00 (2006.01); B01J 35/06 (2006.01); H01M 12/06 (2006.01);
U.S. Cl.
CPC ...
H01M 4/9041 (2013.01); B01J 21/185 (2013.01); B01J 35/0013 (2013.01); B01J 35/06 (2013.01); C01B 32/158 (2017.08); C01B 32/16 (2017.08); C01B 32/164 (2017.08); C01B 32/168 (2017.08); H01M 4/96 (2013.01); C01B 2202/22 (2013.01); H01M 12/06 (2013.01);
Abstract
A method of making carbon nanotubes doped with iron, nitrogen and sulphur for an oxygen reduction reaction catalyst includes the steps of mixing an iron containing oxidising agent with a sulphur-containing dye to form a fibrous fluctuate of reactive templates and using these for in-situ polymerisation of an azo compound to form polymer-dye nanotubes, adding an alkali to precipitate magnetite, and subjecting the nanotubes to pyrolysis, acid leaching, and heat treatment.