Catalytic Activity Evaluation of the Molten Salt-Modified Novel Ni Electrodes for Urea Electrooxidation in Alkaline Solutions
Abstract
:1. Introduction
2. Experimental Details
2.1. Sample Preparation
2.2. Molten Salts Treatment
2.3. Instrumental Analysis
2.4. Electrochemical Activity Evaluation
3. Results and Discussion
3.1. Molten Salt Treatment of Ni Electrode
3.2. Instrumental Characterization of Porous Electrodes
3.3. Evaluation of Catalytic Activity of Molten Salts Modified Ni Electrodes
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Material | KOH/NaOH + Urea | Onset Potential, V | Current Density/Potential | ECSA mFcm−2 | Ref. |
---|---|---|---|---|---|
α-Ni(OH)2-PNF | 1 M + 0.5 M | 1.317 vs. RHE | 10 mAcm−2/1.37 V | 7.00 | [30] |
Ni nanowires | 5 M + 3.0 M | 0.25 vs. Ag/AgCl | 50 mAcm−2/0.5 V | 25.21 | [31] |
NiFe/NiFeO/N | 1 M + 0.33 M | 1.43 vs. RHE | 68 mAcm−2/1.7 V | - | [32] |
NiCo2O4@CoS/NF | 1 M + 0.33 M | 0.37 vs. Ag/AgCl | 78 mAcm−2/0.5 V | 10.10 | [33] |
Ultrathin Ni(OH)2 nanoflakes | 1 M + 0.33 M | 0.35 vs. Ag/AgCl | 76 mA/cm−2/0.5 V | 0.76 | [34] |
Ni-Mo nanotube | 0.1 M + 0.33 M | 1.36 vs. RHE | 10 mAcm−2/1.43 V | 0.92 | [35] |
Nickel foam—This work | 1 M + 0.33 M | 1.39 vs. RHE | 38 mAcm−2/1.52 V | 2.16 | - |
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Kutyła, D.; Fukumoto, M.; Takahashi, H.; Wojnicki, M.; Żabiński, P. Catalytic Activity Evaluation of the Molten Salt-Modified Novel Ni Electrodes for Urea Electrooxidation in Alkaline Solutions. Metals 2024, 14, 904. https://doi.org/10.3390/met14080904
Kutyła D, Fukumoto M, Takahashi H, Wojnicki M, Żabiński P. Catalytic Activity Evaluation of the Molten Salt-Modified Novel Ni Electrodes for Urea Electrooxidation in Alkaline Solutions. Metals. 2024; 14(8):904. https://doi.org/10.3390/met14080904
Chicago/Turabian StyleKutyła, Dawid, Michihisa Fukumoto, Hiroki Takahashi, Marek Wojnicki, and Piotr Żabiński. 2024. "Catalytic Activity Evaluation of the Molten Salt-Modified Novel Ni Electrodes for Urea Electrooxidation in Alkaline Solutions" Metals 14, no. 8: 904. https://doi.org/10.3390/met14080904