fig2

Figure 2. Fuel cell performance of (A) ZnO, (B) Mg-ZnO and (C) ZnO/Mg-ZnO at different temperatures (420-520 °C) and (D) comparison between ZnO, Mg-ZnO and ZnO/Mg-ZnO.
Figure 2. Fuel cell performance of (A) ZnO, (B) Mg-ZnO and (C) ZnO/Mg-ZnO at different temperatures (420-520 °C) and (D) comparison between ZnO, Mg-ZnO and ZnO/Mg-ZnO.
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