US 12,454,766 B2
Electrode catalyst and method for producing amine compound
Miho Yamauchi, Fukuoka (JP); Takashi Fukushima, Fukuoka (JP); and Sho Akai, Fukuoka (JP)
Assigned to JAPAN SCIENCE AND TECHNOLOGY AGENCY, Saitama (JP)
Filed by JAPAN SCIENCE AND TECHNOLOGY AGENCY, Saitama (JP)
Filed on Aug. 26, 2021, as Appl. No. 17/412,426.
Application 17/412,426 is a continuation of application No. PCT/JP2020/008535, filed on Feb. 28, 2020.
Claims priority of application No. 2019-036303 (JP), filed on Feb. 28, 2019.
Prior Publication US 2022/0042188 A1, Feb. 10, 2022
Int. Cl. C25B 3/09 (2021.01); C25B 3/25 (2021.01); C25B 9/19 (2021.01); C25B 11/065 (2021.01); C25B 11/077 (2021.01); C25B 13/00 (2006.01)
CPC C25B 11/077 (2021.01) [C25B 3/09 (2021.01); C25B 9/19 (2021.01); C25B 11/065 (2021.01); C25B 13/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing an amine compound using an electrochemical cell including an anode and a cathode, the method comprising steps of:
supplying water or steam to the anode;
supplying an α-keto acid and a hydroxylamine to the cathode; and
applying a voltage between the anode and the cathode,
wherein on the anode, the water is decomposed to generate protons which reach the cathode;
on the cathode, a reductive amination reaction, in which the α-keto acid and the hydroxylamine are used as raw materials, occurs;
the amine compound is an amino acid;
the cathode comprises an electrode catalyst in which a metal oxide is supported on an electrode support composed of a conductive substance;
the conductive substance comprises one or more metals selected from the group consisting of a transition metal and a metal in Groups 12 to 14, or a carbon-based material;
the metal oxide supported on the electrode support is an oxide of a metal having the same element as the metal comprised in the conductive substance; and
fine particles of a metal oxide wherein the metal is titanium or a metal comprising titanium are further supported on the metal oxide supported on the electrode support.