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US 12,424,636 B2Granted
Carbon-based solid acid
AssigneeNissan Chemical Corporation
InventorsShoichi Kondo, Taichi Nakazawa, Takamasa Kikuchi, Yuki Nohara, Mitsuyoshi Kawashima
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Abstract
Provided is a material which can be used in a catalyst layer for a fuel cell and exhibits proton conductive properties. The present invention is directed to a carbon-based solid acid comprising a carbon material having a sulfonic acid group through a linker.
Claims13
A carbon-based solid acid comprising a carbon material having a sulfonic acid group through a linker, which has a structure represented by the following formula (1):
- wherein G represents graphene optionally having at least one member selected from the group consisting of a hydroxyl group, a carboxyl group, a carbonyl group, a formyl group, a sulfonic acid group, an oxysulfonic acid group, a carboxylic acid anhydride structure, a chromene structure, a lactone structure, an ester structure, and an ether structure, k represents an integer of 1 to 5, j represents an integer of 1 to 3, m represents an integer of 1 to 10, and n represents an integer of 2 to 4.
Dependencies are inferred from the claim text.