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Flame Synthesis of Fe-Doped Co3O4/CNT/NF for Highly Efficient Oxygen Evolution Reaction.
- Source :
- Journal of Electronic Materials; Jul2023, Vol. 52 Issue 7, p4951-4958, 8p
- Publication Year :
- 2023
-
Abstract
- The development of efficient, long-lasting, low-cost, and environment friendly electrocatalysts for oxygen evolution reactions (OER) is imminent in many energy storage and conversion devices. Here, a unique electrocatalyst of Fe-doped Co<subscript>3</subscript>O<subscript>4</subscript> particles loaded on carbon nanotubes (Fe-doped Co<subscript>3</subscript>O<subscript>4</subscript>/CNT/NF) was synthesized by a one-step flame method. This method significantly reduces the reaction time (the whole flame process just maintain ~ 10 s). The doping of iron significantly enhances the activity of the OER, as demonstrated by a reduced overpotential of 232 mV to achieve 10 mA cm<superscript>−2</superscript>, a tiny Tafel slope (34.1 mV dec<superscript>−1</superscript>), and long-lasting durability in an alkaline electrolyte. This work provides a potential possibility for large-scale industrial production. The carbon nanotubes attached with Fe-doped and Co<subscript>3</subscript>O<subscript>4</subscript> nanoparticles were generated in situ by a simple and reliable one-step flame method. Fe-doped and Co<subscript>3</subscript>O<subscript>4</subscript> nanoparticles were immobilized on the surface of the carbon nanotubes, resulting in Co being able to expose more active edges. As a result, the newly designed Fe-doped Co<subscript>3</subscript>O<subscript>4</subscript>/CNT/NF exhibits lower overpotential and Tafel slope. The low cost of the basic materials in this design and the easy and fast preparation method ensure that it can be produced on a large scale. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03615235
- Volume :
- 52
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Journal of Electronic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 164045468
- Full Text :
- https://doi.org/10.1007/s11664-023-10446-2