US 12,148,933 B2
Methods for producing alpha-keto acid and pyruvic acid
Miho Yamauchi, Fukuoka (JP); and Tatsuyoshi Morimoto, Fukuoka (JP)
Assigned to JAPAN SCIENCE AND TECHNOLOGY AGENCY, Saitama (JP)
Filed by JAPAN SCIENCE AND TECHNOLOGY AGENCY, Saitama (JP)
Filed on Sep. 13, 2023, as Appl. No. 18/367,719.
Application 18/367,719 is a division of application No. 16/978,306, granted, now 11,784,319, previously published as PCT/JP2019/008691, filed on Mar. 5, 2019.
Claims priority of provisional application 62/638,311, filed on Mar. 5, 2018.
Prior Publication US 2023/0420690 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/90 (2006.01); C07C 51/16 (2006.01); C25B 5/00 (2006.01); H01M 4/88 (2006.01); H01M 4/92 (2006.01); H01M 8/1011 (2016.01); C07C 59/19 (2006.01)
CPC H01M 4/9016 (2013.01) [C25B 5/00 (2013.01); H01M 4/8882 (2013.01); H01M 4/9041 (2013.01); H01M 4/921 (2013.01); H01M 4/926 (2013.01); H01M 8/1013 (2013.01); C07C 51/16 (2013.01); C07C 59/19 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A fuel cell comprising an anode, a cathode and an electrolyte, wherein the anode comprises an electrode catalyst comprising an electrically conductive material carrying a metal or a metal oxide, and having an electrical conductivity at 30°0 C. of 1×10−13 Scm−1 or more;
said metal is one or more transition metals and said metal oxide is an oxide of a transition metal; and
said electrolyte has proton conductivity; and
wherein an a-hydroxycarboxylic acid contacts the anode to generate protons and electrons;
the protons move in the electrolyte and reach the cathode; and
the protons and oxygen are reacted on the cathode to produce water.