Water oxidation electrocatalyst: A new application area for Ruthner powder waste material
| Autor: | Amin Taghdiri, Mostafa Alishahi, Soghra Ghorbanzadeh, S. A. Hosseini |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Materials science
020502 materials Oxygen evolution chemistry.chemical_element 02 engineering and technology Overpotential Electrocatalyst 7. Clean energy Industrial and Manufacturing Engineering 12. Responsible consumption chemistry.chemical_compound Electrophoretic deposition 0205 materials engineering chemistry Chemical engineering Mechanics of Materials Electrode Ceramics and Composites Layer (electronics) Carbon Cetrimonium bromide |
| Zdroj: | Boletín de la Sociedad Española de Cerámica y Vidrio. 61:336-346 |
| ISSN: | 0366-3175 |
| DOI: | 10.1016/j.bsecv.2021.01.002 |
| Popis: | Ruthner powder is a by-product of the steel hot-rolling process. This study introduces a new application area for this waste material by investigating its activity for the oxygen evolution reaction. Ruthner powder with the α-Fe2O3 phase structure was deposited on the carbon paper substrates using the electrophoretic deposition (EPD) process to fabricate the electrodes. The effect of the concentration of cetrimonium bromide ([CTAB]) and the Ruthner powder ([RP]) in the EPD cell on the morphology and activity of the electrodes were investigated by SEM, LSV, and EIS techniques. The results revealed the formation of a homogenous layer on the carbon paper when [CTAB] and [RP] were respectively 0.4 g.l−1 and 0.2 g.l−1. The obtained electrode showed the best activity among all fabricated electrodes. In particular, its onset overpotential and overpotential at a current density of 10 mA.cm−2 were respectively 85% and 25% lower than those of bare carbon electrodes. |
| Databáze: | OpenAIRE |
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