Table 3.
Characteristics of rGO products derived from different microwave-assisted simultaneous thermal exfoliation and reduction.
Experiment conditions | Results | Additional information | References | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Frequency | MW power | MW time | Atmosphere | XRD (peak location) | XPS (C/O) | Raman (ID/IG) | Conductivity (S m−1) | TGA (significant mass loss T) | |||
1 | 2.45 GHz | 700 W | 1 min | Air | 25° | 2.75 | 274 | ~500°C | Zhu et al., 2010a | ||
2 | 2.45 GHz | 1,600 W | 50 s | Air | 3.6 | 0.853 | Park et al., 2011b | ||||
Ar | 11.45 | 0.842 | 7.41 × 102 | ||||||||
Ar+H2 | 18.5 | 0.785 | 1.25 × 103 | ||||||||
3 | 5.8 GHz | 1,400 W | 10 min | N2 | 7.24 | ~0.7 | 7.63 × 102 | Wen et al., 2014 | |||
10.33 | ~1.07 | 1.19 × 104 | Pretreated by NaBH4, and Raman beacomes worse. Maybe the MW not be sufficient to repair the large amount of defects caused by NaBH4 | ||||||||
4 | 2.45 GHz | 1,000 W | 1 min | N2 | ~12&24° | 2.42 | ~450°C | Pokharel et al., 2014 | |||
2 min | ~22° | 5.78 | |||||||||
3 min | 26.3° | 10.39 |