| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| international journal of hydrogen energy | 0.11 | 0.7 | 5460 | 92 | 40 |
| international | 1.14 | 0.2 | 9612 | 46 | 13 |
| journal | 0.26 | 0.4 | 4366 | 50 | 7 |
| of | 1.53 | 0.7 | 4582 | 16 | 2 |
| hydrogen | 0.21 | 1 | 8226 | 60 | 8 |
| energy | 0.71 | 0.1 | 5033 | 78 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| international journal of hydrogen energy | 1.17 | 1 | 2107 | 65 |
