Table 6.
Summary of relevant materials in the literature for graphene‐based materials for Na–O2 batteries.
|
Material |
Synthesis |
Electrolyte |
Discharge capacity (discharge rate) |
Capacity limitation |
Cycles (discharge rate) |
Ref. |
|---|---|---|---|---|---|---|
|
GNS |
Hummer′s method +casting GO on stainless‐steel mesh +freeze‐drying +annealing at mild temperature |
0.25 m NaPF6 in DME |
9268 mAh g−1 (200 mA g−1) |
1200 mAh g−1 |
10 (300 mA g−1) |
|
|
N‐GNS |
Hummer′s method +annealing at high temperature |
0.5 mol dm−3 NaSO3CF3 in DEGDME |
6000 mAh g−1 (75 mA g−1) |
1150 mAh g−1 |
3 (75 mA g−1) |
|
|
porous rGO |
coating Ni foam with graphene colloids |
0.25 m NaClO4 in DME |
12 mAh cm−2 (0.1 mA cm−2) |
1 mAh cm−2 |
17 (0.1 mA cm−2) |
|
|
Pt/GNS |
in situ growth of Pt particles on GO by hydrothermal treatment |
1 m NaClO4 in PC |
7574 mAh g−1 (0.1 mA cm−2) |
100 mAh g−1 |
10 (0.1 mA cm−2) |
|
|
Ag‐rGO |
simultaneous reduction of Ag precursor and GO using ethylene glycol |
1 m NaPF6 in TEGDME |
566 mAh g−1 (0.1 mA cm−2) |
0.125 mAh cm−2 |
30 (0.2 mA cm−2) |
|
|
rGO aerogels |
freeze‐drying of commercial GO +annealing at high temperature |
0.1 m NaClO4 in DME |
6.61 mAh cm−2 (100 mA g−1) |
0.5 mAh cm−2 |
40 (0.25 mA cm−2) |