| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| spinel material emission catalyst | 0.49 | 0.4 | 1180 | 63 | 33 |
| spinel | 1.27 | 0.3 | 4320 | 22 | 6 |
| material | 1.86 | 0.2 | 5534 | 45 | 8 |
| emission | 0.11 | 0.2 | 459 | 58 | 8 |
| catalyst | 0.18 | 0.2 | 8795 | 90 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| spinel solution combustion synthesis | 1.68 | 0.8 | 9867 | 70 |
| spin effects in chemisorption and catalysis | 1.42 | 0.3 | 697 | 99 |
