Ammonia fuel cell
A fuel cell is an ammonia fuel cell using an ammonia-containing fuel. A catalyst used for an anode of the fuel cell is a ruthenium complex having two first ligands and one second ligand, and the first ligand is pyridine or a condensed cyclic pyridine compound with or without a substituent, and the second ligand is 2,2′-bipyridyl-6,6′-dicarboxylic acid with or without a substituent on a pyridine ring.
1. An ammonia fuel cell using an ammonia-containing fuel, wherein
a catalyst used for an anode of the fuel cell is a ruthenium complex having two first ligands and one second ligand, wherein
the first ligand is pyridine or a condensed cyclic pyridine compound with or without a substituent, and
the second ligand is 2,2′-bipyridyl-6,6′-dicarboxylic acid with or without a substituent on a pyridine ring.
2. The ammonia fuel cell according to claim 1 ,
wherein the catalyst is a ruthenium complex expressed by any of Chemical Formula (A) to Chemical Formula (C),
(where Py denotes pyridine with or without an alkyl group, an alkoxy group, an aryl group or a halogen atom in 4-position or isoquinoline with or without an alkyl group, an alkoxy group, an aryl group or a halogen atom in 6-position; R denotes an alkyl group, an alkoxy group, an aryl group or a halogen atom, and X denotes a monovalent anion).
3. The ammonia fuel cell according to claim 1 , wherein ammonia as the fuel is generated by a reaction of an ammonium salt and a base in situ.
4. The ammonia fuel cell according to claim 3 ,
wherein the base is a pyridine with or without a substituent in at least one of 2-position to 6-position.
5. The ammonia fuel cell according to claim 4 ,
wherein the base is 2,4,6-collidine.
6. The ammonia fuel cell according to claim 2 ,
wherein ammonia as the fuel is generated by a reaction of an ammonium salt and a base in situ.
7. The ammonia fuel cell according to claim 6 ,
wherein the base is a pyridine with or without a substituent in at least one of 2-position to 6-position.
8. The ammonia fuel cell according to claim 7 ,
wherein the base is 2,4,6-collidine.