US 12,227,412 B2
Porous one-dimensional polymeric graphitic carbon nitride-based nanosystems for catalytic conversion of carbon monoxide and carbon dioxide under ambient conditions
Kamel Abdelmoniem Mohamed Eid, Sharkia (EG); and Aboubakr Moustafa Abdullah, Giza (EG)
Assigned to Qatar University, Doha (QA)
Filed by QATAR UNIVERSITY, Doha (QA)
Filed on Oct. 20, 2020, as Appl. No. 17/075,582.
Application 17/075,582 is a division of application No. 16/846,020, filed on Apr. 10, 2020, granted, now 11,299,395.
Claims priority of provisional application 62/960,946, filed on Jan. 14, 2020.
Prior Publication US 2021/0047183 A1, Feb. 18, 2021
Int. Cl. C01B 21/06 (2006.01); B01D 53/04 (2006.01); B01J 27/24 (2006.01)
CPC C01B 21/0605 (2013.01) [B01D 53/04 (2013.01); B01J 27/24 (2013.01); B01D 2257/504 (2013.01); C01P 2002/01 (2013.01); C01P 2002/10 (2013.01); C01P 2002/52 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/16 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of reducing CO2, comprising
providing a CO2 gas mixture comprising at least 1% CO;
providing a catalyst to contact the CO2 gas mixture, wherein the catalyst comprises a graphitic-like carbon nitride nanostructure; and
performing a CO2 reduction reaction;
wherein the nanostructure is doped atomically with one or more metal elements, wherein the one or more metal elements comprise a metal element selected from the group consisting of gold (Au), palladium (Pd), and platinum (Pt);
wherein the nanostructure comprises at least one of nanotubes, nanorods, or nanofibers;
wherein the nanostructure is additionally characterized by at least one of the following features:
(i) wherein the nanostructure is doped with 1-1.2 wt. % Au/Pd or 1-1.2 wt. % Pt/Pd; or
(ii) wherein the nanostructure is selected from the group consisting of a carbon nitride nanotube doped with Au and Pd (Au/Pd/gC3N4NT), a carbon nitride nanofiber doped with Au and Pd (Au/Pd/gC3N4NF), and a carbon nitride nanorod doped with Pt and Pd (Pt/Pd/CN nanorod).