| Engineering, Technology and Energy | 2021-2025 | 323 | CN 197 | 99.92 |
| Materials Science | 2021-2025 | 642 | CN 413 | 98.86 |
| Biomedical Engineering | Lifetime | 161 | CN 35 | 99.77 |
| Catalysis | Lifetime | 66 | CN 11 | 98.77 |
| Nanoscience and Nanotechnology | Lifetime | 344 | CN 96 | 87.75 |
| Energy Materials and Devices | Lifetime | 522 | CN 294 | 80.51 |
| Biomedical Engineering | 2021-2025 | 34 | CN 21 | 99.87 |
| Catalysis | 2021-2025 | 78 | CN 47 | 96.54 |
| Materials Chemistry | 2021-2025 | 693 | CN 439 | 96.88 |
| Mechanical Engineering | 2021-2025 | 673 | CN 380 | 95.30 |
| Renewable Energy, Sustainability and the Environment | 2021-2025 | 551 | CN 351 | 95.39 |
| Energy Materials and Devices | 2021-2025 | 139 | CN 77 | 90.22 |
| Water Science and Technology | 2021-2025 | 680 | CN 328 | 87.23 |
| Pollution | 2021-2025 | 665 | CN 273 | 80.53 |
| Thermochemical Biomass Conversion Processes | Lifetime | 19 | CN 7 | 99.75 |
| Lignin and Wood Chemistry | Lifetime | 22 | CN 6 | 99.58 |
| Catalysis for Biomass Conversion | Lifetime | 38 | CN 10 | 99.54 |
| Catalysis and Hydrodesulfurization Studies | Lifetime | 59 | CN 7 | 99.50 |
| Catalysts for Methane Reforming | Lifetime | 40 | CN 9 | 99.55 |
| Biofuel production and bioconversion | Lifetime | 117 | CN 12 | 99.47 |
| Catalytic Processes in Materials Science | Lifetime | 366 | CN 119 | 99.35 |
| Biodiesel Production and Applications | Lifetime | 133 | CN 21 | 98.77 |
| Thermochemical Biomass Conversion Processes | 2021-2025 | 5 | CN 4 | 99.81 |
| Lignin and Wood Chemistry | 2021-2025 | 5 | CN 4 | 99.69 |
| Catalysis and Hydrodesulfurization Studies | 2021-2025 | 8 | CN 4 | 99.45 |
| Catalysis for Biomass Conversion | 2021-2025 | 22 | CN 14 | 99.03 |
| Catalysts for Methane Reforming | 2021-2025 | 60 | CN 35 | 97.81 |
| Biofuel production and bioconversion | 2021-2025 | 137 | CN 50 | 97.47 |
| Catalytic Processes in Materials Science | 2021-2025 | 455 | CN 342 | 97.52 |
| Supercapacitor Materials and Fabrication | 2021-2025 | 448 | CN 295 | 97.63 |
| Adsorption and biosorption for pollutant removal | 2021-2025 | 541 | CN 149 | 93.87 |
| Biodiesel Production and Applications | 2021-2025 | 305 | CN 46 | 93.88 |
| Coal and Its By-products | 2021-2025 | 131 | CN 102 | 91.77 |
| Carbon dioxide utilization in catalysis | 2021-2025 | 443 | CN 267 | 89.93 |
| Nanomaterials for catalytic reactions | 2021-2025 | 927 | CN 386 | 89.94 |
| Recycling and Waste Management Techniques | 2021-2025 | 829 | CN 305 | 90.71 |
| Zeolite Catalysis and Synthesis | 2021-2025 | 316 | CN 176 | 89.88 |
| Catalysis and Oxidation Reactions | 2021-2025 | 866 | CN 583 | 89.10 |
| Coal Combustion and Slurry Processing | 2021-2025 | 232 | CN 110 | 79.86 |
| Biochemical and biochemical processes | 2021-2025 | 264 | CN 106 | 73.85 |
| Municipal Solid Waste Management | 2021-2025 | 991 | CN 234 | 69.90 |
| Polymer Foaming and Composites | 2021-2025 | 468 | CN 221 | 58.89 |