Laser driven generation of single atom Fe-N-C catalysts for the oxygen reduction reaction

Madrid, Ainhoa ; Tolosana-Moranchel, Álvaro ; García, Álvaro ; Rojas, Sergio ; Bartolome, Fernando ; Pakrieva, Ekaterina (Universidad de Zaragoza) ; Simonelli, Laura ; Martinez, Gema ; Hueso, Jose L. (Universidad de Zaragoza) ; Santamaria, Jesus (Universidad de Zaragoza)

Resumen: Single-Atom Catalysts (SACs) have emerged as the ultimate solutions in challenging systems bridging the gap between homogeneous and heterogeneous catalysts. However, feasible synthesis methods are necessary to stabilize single metal atoms, increase catalyst loadings and scale up the synthesis. Due to its sluggish kinetics, the oxygen reduction reaction (ORR) is the main source of irreversibility in proton exchange membrane fuel cells (PEMFC). The most promising candidates to replace Pt-based catalysts for the ORR in fuel cells are the so-called Fe-N/C catalysts. These catalysts display high ORR activity in acidic and alkaline electrolytes. In this work, we propose a laser-driven pyrolysis approach to generate Fe-N/C SACs that involves decomposition of aerosolized iron-phthalocyanines. The resulting catalyst displays ORR activity in acidic and alkaline electrolytes, with competitive half-potential and kinetic current density values in comparison with state-of-the-art electrocatalysts.

Idioma: Inglés

DOI: 10.1016/j.cej.2024.155363

Año: 2024

Publicado en: Chemical Engineering Journal 498 (2024), 155363 [11 pp.]
ISSN: 1385-8947

Financiación: info:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-S
Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2020-114926RB-I00
Financiación: info:eu-repo/grantAgreement/ES/UZ-DGA/T57-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CNS2022-135911
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2020-115159GB-I00
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2020-116712RB-C21

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)