New Opportunity for Carbon-Supported Ni-based Electrocatalysts: Gas-Phase CO2 Methanation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Goncalves, LPL (Autor) Outra; Serov, A (Autor) Outra; McCool, G (Autor) Outra; Dicome, M (Autor) Outra; Sousa, JPS (Autor) Outra; O.S.G.P. Soares (Autor) FEUP; Bondarchuk, O (Autor) Outra; Petrovykh, DY (Autor) Outra; Lebedev, OI (Autor) Outra; Manuel Fernando R Pereira (Autor) FEUP; Kolen'ko, YV (Autor) Outra

Revista

Título: ChemCatChem

ISSN: 1867-3880

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00V-H96

DOI: 10.1002/cctc.202101284

Abstract (EN): The cost-effectiveness and excellent performance of conductive-carbon-supported Ni-based electrocatalysts make them attractive materials for hydrogen oxidation and evolution reactions. However, they were previously unused in gas-phase hydrogenation reactions. In this work, we have expanded the applicability of commercially available advanced Ni/C, NiMo/C and NiRe/C materials from electrocatalysis to heterogeneous catalysis of CO2 methanation. Our catalytic testing efforts indicate that the monometallic Ni/C material demonstrates the best CO2 methanation properties, achieving an excellent CO2 conversion of 83 % at 400 degrees C with nearly complete selectivity to CH4 of 99.7 %, plus exhibiting intact performance during 90 h of time-on-stream testing. Such catalytic properties are among the highest reported to date among carbon-supported Ni-based methanation catalysts. Excellent performance of Ni/C stems from the good dispersion of the Ni nanoparticles over N-containing carbon support material.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11