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US 2024/0270913 A1Published application
Ion exchange membranes (iems) with ionic ligand-metal complex groups and methods thereof
AssigneeXerox Corporation
InventorsKentaro Morimitsu, Valerie M. Farrugia
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Abstract
An ion-exchange membrane including a polymer such as vinylpyridine, styrene, poly(4-vinylpyridine), or a poly(4-vinylpyridine-co-styrene) copolymer. The ion-exchange membrane also includes an ionic ligand-metal complex bonded to the vinylpyridine by a coordinate covalent bond. The ionic ligand-metal complex may include nickel-bipyridine. The ion-exchange membrane can be a free-standing membrane.
Claims20
An ion-exchange membrane, comprising:
- a polymer comprising vinylpyridine;
- and
- an ionic ligand-metal complex bonded to the vinylpyridine by a coordinate covalent bond.
An ion-exchange membrane, comprising:
- a polymer comprising vinylpyridine and styrene;
- and
- an ionic ligand-metal complex bonded to the polymer by a coordinate covalent bond.
An ion-exchange membrane, comprising:
- a polymer comprising a poly(4-vinylpyridine-co-styrene) copolymer;
- and
- a nickel-bipyridine complex bonded to the polymer by a coordinate covalent bond.
Dependencies are inferred from the claim text.