C15-Structured Zr-Ti-Fe-Ni-V Alloys for High-Pressure Hydrogen Compression
Metal hydride hydrogen compressors (MHHC) offer unique advantages over conventional mechanical compressors in high-pressure hydrogen refueling. In this study, we developed C15-structured Zr-Ti-Fe-Ni-V single-phase alloys for high-pressure hydrogen compression. By designing the alloy compositions-high Ni and low V-and employing a quenching process, the resulting ZrFe<sub>2</sub>-based alloys exhibit reduced hydriding/dehydriding plateau hysteresis and slope, along with a narrow hydrogen solid solution zone. Notably, the Zr<sub>0.8</sub>Ti<sub>0.2</sub>Fe<sub>1.2</sub>Ni<sub>0.7</sub>V<sub>0.1</sub> alloy elevates the hydrogen pressure from 128.3 atm to 334.5 atm within 283-353 K, delivering an effective hydrogen capacity of 1.02 wt.%. Similarly, the Zr<sub>0.9</sub>Ti<sub>0.1</sub>Fe<sub>1.2</sub>Ni<sub>0.7</sub>V<sub>0.1</sub> alloy increases the hydrogen pressure from 60.4 atm to 221.8 atm across 283-363 K, with a capacity of 0.81 wt.%. This work provides a rational strategy for designing ZrFe<sub>2</sub>-based alloys for efficient hydrogen compression and storage applications.
Authors
- Changsheng Qin
- Jie Xu (ORCID: https://orcid.org/0000-0002-2413-8405)
- Hui Wang (ORCID: https://orcid.org/0000-0001-8804-4857)
Institutions
- Minzu University of China (CN)
- South China University of Technology (CN)
Publication Details
- Journal
- Materials
- Published
- 2025-12-05
- DOI
- https://doi.org/10.3390/ma18245482
- Citations
- 1
- Primary Topic
- Hydrogen Storage and Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- National Natural Science Foundation of China