NiCo Nanoneedles on 3D Carbon Nanotubes/Carbon Foam Electrode as an Efficient Bi-Functional Catalyst for Electro-Oxidation of Water and MethanolShow others and affiliations
2021 (English)In: Catalysts, E-ISSN 2073-4344, Vol. 11, no 4, article id 500Article in journal (Refereed) Published
Abstract [en]
In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.
Place, publisher, year, edition, pages
MDPI, 2021. Vol. 11, no 4, article id 500
Keywords [en]
NiCo bi-functional catalyst, CNTs, carbon foam, OER, MOR
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:umu:diva-182708DOI: 10.3390/catal11040500ISI: 000642861000001Scopus ID: 2-s2.0-85104110259OAI: oai:DiVA.org:umu-182708DiVA, id: diva2:1548778
2021-05-032021-05-032023-09-05Bibliographically approved