Fast Synthesis of Co₃O₄ by Microwave-Assisted Hydrothermal Treatment

Figure 1

X-ray diffraction of Co₃O₄ particles that were hydrothermally synthesized with (a) urea at 180°C for 10 min (CU-10), (b) urea at 180°C for 60 min (CU-60), (c) KOH and 50% H₂O₂ at 220°C for 10 min (CH2-10), and (d) KOH and 50% H₂O₂ at 220°C for 60 min (CH2-60).