fig2
![Constructing bimetal, alloy, and compound-modified nitrogen-doped biomass-derived carbon from coconut shell as accelerants for boosting methane production in bioenergy system](https://image.oaes.cc/2581ab7d-d74c-486e-b68c-24d48030e96a/em4062.fig.2.jpg)
Figure 2. (A-C) XRD patterns of Ni-N-C, Fe-N-C, and Fe/Ni-N-C, (D) Raman spectra, (E-G) fitted curves of Raman spectra, and (H) the ratio of ID/IG of Ni-N-C, Fe-N-C, and Fe/Ni-N-C.
Figure 2. (A-C) XRD patterns of Ni-N-C, Fe-N-C, and Fe/Ni-N-C, (D) Raman spectra, (E-G) fitted curves of Raman spectra, and (H) the ratio of ID/IG of Ni-N-C, Fe-N-C, and Fe/Ni-N-C.
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