[Figure 2] Comparison of Oxygen Functional Group Distribution and Electrochemical Performance of Lignin-Based Carbon Catalysts as a Function of Carbonization Temperature (IMAGE)
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It was confirmed that the composition of oxygen-containing functional groups (C=O, C-O, O-C=O, etc.) on the carbon surface changes depending on the carbonization temperature of the lignin-based carbon catalyst. Furthermore, a comparison of the electrochemical specific surface area (ECSA), electron transfer number (n), hydrogen peroxide selectivity, and production rate for each catalyst revealed that the catalyst prepared at 900 °C exhibited high hydrogen peroxide production performance in the oxygen reduction reaction. (CCL3: Carbon catalyst prepared by carbonizing lignin at 300 °C; CCL6: Carbon catalyst prepared by carbonizing lignin at 600 °C; CCL9: Carbon catalyst prepared by carbonizing lignin at 900 °C; CCL12: Carbon catalyst prepared by carbonizing lignin at 1200 °C)
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Korea Institute of Science and Technology
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