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US 11,446,648 B2Granted
Porphyrin-based catalysts for water splitting
AssigneeKing Faisal University
InventorsMamdouh E. Abdelsalam, Ibrahim A. Elghamry
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Abstract
The porphyrin-based catalysts for water splitting are composites of porphyrin or metalloporphyrin active ingredients, conductive carbon (e.g., graphene sheets, vapor grown carbon fiber, carbon black, etc.), and a polymer or binder that may be coated on a glassy carbon electrode. The polymer or binder may be Nafion oil or polyvinylidine difluoride. The porphyrin may be a porphyrin having a transition metal or hydrogen at its center, and may be halogenated and/or have a thiophene substituent.
Claims4
A composite electrode, comprising:
- a glassy carbon electrode;
- and
- a porphyrin catalyst coated on the glassy carbon electrode;
- wherein the porphyrin catalyst comprises a composite having a mixture of:
- a porphyrin compound;
- conductive carbon;
- and
- a polymer binder selected from the group consisting of Nafion oil and polyvinylidene difluoride;
- and
- wherein the porphyrin compound has the formula:
- wherein M is H2, Co, Ni, Cu, or Zn, and X is F, CI, or Br.
8 more elements
Dependencies are inferred from the claim text.