| Å | Ångström (10−10 m) |
| CO2 | Carbon Dioxide |
| °C | Degree Celsius |
| BET | Brunauer–Emmett–Teller |
| BJH | Barrett–Joyner–Halenda |
| EDS | Energy-Dispersive X-ray Spectroscopy |
| FTIR | Fourier-Transform Infrared Spectroscopy |
| SEM | Scanning Electron Microscopy |
| STP | Standard Temperature and Pressure |
| NZC | Non-ZnCl2-Activated Biochar |
| ZC | ZnCl2-Activated Biochar |
| S300NZC | Sawdust biochar, 300 °C, non-activated |
| S300ZC | Sawdust biochar, 300 °C, ZnCl2-activated |
| S500NZC | Sawdust biochar, 500 °C, non-activated |
| S500ZC | Sawdust biochar, 500 °C, ZnCl2-activated |
| P/P0 | Relative Pressure |
| µm | Micrometer |