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

• Type: Article in International Scientific Journal
• Date: 2021

Authors

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

Journal

Title: ChemCatChem

ISSN: 1867-3880

Publisher: Wiley-Blackwell

Indexing

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Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11