Investigation of Earth-Abundant Oxygen Reduction Electrocatalysts for the Cathode of Passive Air-Breathing Direct Formate Fuel Cells
Abstract
:1. Introduction
2. Results and Discussion
2.1. Electrocatalyst Characterization
2.2. Investigation of the Electrocatalytic Activity for the ORR
2.3. Formate Ions Tolerance of the FeCo-N-C Electrocatalyst
2.4. Electrocatalytic Activity of FeCo-N-C for the ORR in Different Electrolytes
2.5. Activity and Stability in Formate/Air Single Cells
3. Experimental Section
3.1. Reactants and Materials
3.2. Electrocatalysts under the Focus of this Study—Fe-N-C, Co-N-C e FeCo-N-C
3.3. Materials Synthesized for Comparison: FeCoOx/C, FeCo@C, FexN and N-C
3.4. Synthesis of the Anode Electrocatalyst for the Single Cell Measurements
3.5. Electrocatalyst Characterization
3.6. Electrochemical Measurements
3.7. Measurements in Single Cells
4. Conclusions
Supplementary Materials
Author Contributions
Acknowledgments
Conflicts of Interest
References
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Electrocatalyst | Composition (wt.%) | ||
---|---|---|---|
Fe | Co | C | |
FeCo-N-C | 5.0 | 4.6 | 90.4 |
FeCo-N-C AT | 3.1 | 2.8 | 94.1 |
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E. R. Oliveira, F.; A. Galiote, N.; H. B. Lima, F. Investigation of Earth-Abundant Oxygen Reduction Electrocatalysts for the Cathode of Passive Air-Breathing Direct Formate Fuel Cells. Catalysts 2018, 8, 320. https://doi.org/10.3390/catal8080320
E. R. Oliveira F, A. Galiote N, H. B. Lima F. Investigation of Earth-Abundant Oxygen Reduction Electrocatalysts for the Cathode of Passive Air-Breathing Direct Formate Fuel Cells. Catalysts. 2018; 8(8):320. https://doi.org/10.3390/catal8080320
Chicago/Turabian StyleE. R. Oliveira, Francisca, Nelson A. Galiote, and Fabio H. B. Lima. 2018. "Investigation of Earth-Abundant Oxygen Reduction Electrocatalysts for the Cathode of Passive Air-Breathing Direct Formate Fuel Cells" Catalysts 8, no. 8: 320. https://doi.org/10.3390/catal8080320