Catalase‐Based Air‐Cathode for Biocompatible Zinc–Air Battery

zu Verbundenen Objekten

Abstract: The use of catalase (CAT) from bovine liver as an electrocatalyst in the air electrode of a primary zinc–air battery (ZAB) with neutral electrolyte (pH 7.4) is reported. First, the use of Nafion for immobilizing CAT onto electrode surface allowed to obtain long‐term stability of the catalytic activity of CAT. Besides, analysis of the CAT and CAT‐Nafion as catalysts for oxygen reduction reaction (ORR) was carried out by linear sweep voltammetry (LSV) using a rotating ring‐disk electrode (RRDE), demonstrating a four‐electron ORR mechanism. Finally, CAT and CAT‐Nafion were tested as air electrodes in flooded ZAB and compared against human hemoglobin‐based ZAB. Our results demonstrated the significant influence of the protein coating of the heme groups on the ZAB performance, affecting greatly the discharge capacity and the power density.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Catalase‐Based Air‐Cathode for Biocompatible Zinc–Air Battery ; day:13 ; month:11 ; year:2024 ; extent:6
ChemCatChem ; (13.11.2024) (gesamt 6)

Urheber
García‐Caballero, Valentín
López‐León, Miguel
Abad, José
Mellado, José M. Rodríguez
Giner‐Casares, Juan J.
Romero, Antonio J. Fernández
Cano, Manuel

DOI
10.1002/cctc.202401343
URN
urn:nbn:de:101:1-2411141328258.031417138420
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:33 MESZ

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Beteiligte

  • García‐Caballero, Valentín
  • López‐León, Miguel
  • Abad, José
  • Mellado, José M. Rodríguez
  • Giner‐Casares, Juan J.
  • Romero, Antonio J. Fernández
  • Cano, Manuel

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