Optimization of cobalt on CNT towards the oxygen evolution reaction and its synergy with iron (II) phthalocyanine as bifunctional oxygen electrocatalyst

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Rafael Morais (Author) FEUP; Rey-Raap, N (Author) Other; Figueiredo, JL (Author) Other; Manuel Fernando R Pereira (Author) FEUP

Journal

Title: Catalysis Today

Vol. 418

ISSN: 0920-5861

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus

Associated Projects

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

BiCat4Energy - Electrocatalisadores bifuncionais baseados em materiais de carbono isentos de metais nobres para a produção de energia renovável: melhoramento da tecnologia da Célula de Combustível Unitária Regenerativa.

Other information

Authenticus ID: P-00Y-66T

DOI: 10.1016/j.cattod.2023.114057

Abstract (EN): Monometallic cobalt catalysts supported on carbon nanotubes (Co/CNT) were optimized for the oxygen evolu-tion reaction (OER). The optimized Co/CNT catalyst was physically mixed with another catalyst composed of carbon nanotubes and iron phthalocyanine to achieve an electrocatalyst able to catalyse both the OER and the oxygen reduction reaction (ORR). A 1:1 mass ratio provided a similar OER electroactivity in comparison to the monometallic catalyst (1.64 V) and a high half-wave potential (0.88 V), which is much higher than that of the commercial Pt/C (0.83 V). This sample also produced the lowest potential gap (0.76 V), which is much lower than the commercial electrocatalysts and most state-of-the-art carbon-supported electrocatalysts.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10