US 12,247,006 B2
Preparing method of linear carbonate compounds
Hyoyoung Lee, Suwon-si (KR); Thi Kim Chau Nguyen, Suwon-si (KR); and Jinsun Lee, Suwon-si (KR)
Assigned to Research & Business Foundation Sungkyunkwan University, Suwon-si (KR); and INSTITUTE FOR BASIC SCIENCE, Daejeon (KR)
Filed by RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR); and INSTITUTE FOR BASIC SCIENCE, Daejeon (KR)
Filed on Nov. 24, 2021, as Appl. No. 17/534,789.
Claims priority of application No. 10-2020-0162052 (KR), filed on Nov. 27, 2020.
Prior Publication US 2022/0169591 A1, Jun. 2, 2022
Int. Cl. C07C 68/04 (2006.01); B01J 21/06 (2006.01); B01J 23/30 (2006.01); B01J 23/50 (2006.01); B01J 35/39 (2024.01)
CPC C07C 68/04 (2013.01) [B01J 21/063 (2013.01); B01J 23/30 (2013.01); B01J 23/50 (2013.01); B01J 35/39 (2024.01)] 9 Claims
 
1. A preparing method of linear carbonate compounds, comprising:
performing a coupling reaction of carbon dioxide in the presence of a titanium dioxide complex,
wherein the titanium dioxide complex has an anatase phase and a rutile phase, a reduced titanium dioxide which is formed by selectively reducing any one of the anatase phase and the rutile phase, and a metallic oxide bound to the reduced titanium dioxide,
wherein the titanium dioxide complex is doped with a metal,
wherein the titanium dioxide complex serves as a photocatalyst so that carbon dioxide is reduced to carbon monoxide, and
wherein the metallic oxide includes a member selected from the group consisting of W, Mo, Cr, Re, Ir, Ta, Hf, Fe, Ni, Cu, Zn, Mn, Y, V, Bi, Sr, Ca, Nb, K, Na, Li, and combinations thereof.