Table 1 Comparison of chemical synthesis methods of high SSA ZnO through carbonation and calcination.
Starting Zn Source | Precursor | Calcination Temperature (°C) | SSA (m2/g) | Applications | Refs. |
|---|---|---|---|---|---|
Zn(CH3COO)2 + EDTA aqueous solution | Zn5(CO3)2(OH)6 | 300 | 82 | Gas adsorbent, CO2 capture | |
Commercial ZnO + N2CO3 + Zn(NO3)2 aqueous suspension | Zn5(CO3)2(OH)6 | 250 | 61.8 | Sorbent, Catalyst support | |
High-purity ZnO aqueous suspension | Zn5(CO3)2(OH)6 | 500 | 63.2 | – | |
Commercial ZnO + NH4HCO3 aqueous suspension | Zn5(CO3)2(OH)6 | 300 | 79.5 | Photocatalyst, Gas sensor | |
Mechanochemical milling of 3-phase mixture of ZnO (s) + CO2 (g) + H2O (l) | Zn5(CO3)2(OH)6 | 300 | 56.7 | Gas adsorbent, CO2 capture | |
Mechanochemical milling of 3-phase mixture of Zn (s)+ NH3 (g) + CO2 (g) + H2O (l) | Zn5(CO3)2(OH)6, ZnCO3.NH3 | 500 | 30–40 | Sorbent, Catalyst support |
