Bibliographic Details
| Title: |
Layered double hydroxide-derived Mg2Ni/TiH1.5 composite catalysts for enhancing hydrogen storage performance of MgH2 |
| Authors: |
Gang Huang, Yao Lu, Xiaofang Liu, Wukui Tang, Xinyu Li, Feng Wang, Jianglan Shui, Ronghai Yu |
| Source: |
Journal of Magnesium and Alloys, Vol 12, Iss 12, Pp 4966-4975 (2024) |
| Publisher Information: |
KeAi Communications Co., Ltd., 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Mining engineering. Metallurgy |
| Subject Terms: |
Hydrogen storage materials, MgH2, Layered double hydroxides, Nanocatalysts, Mining engineering. Metallurgy, TN1-997 |
| More Details: |
Developing efficient catalysts is of great significance in improving the sluggish kinetics and high desorption temperature of MgH2 hydrogen storage material. Here, ultrathin NiTi-layered double hydroxide (NiTi-LDH) nanosheets are used as precursors to prepare Mg2Ni/TiH1.5 composite catalysts to improve the hydrogen storage properties of MgH2. The variation of Ni/Ti ratio in LDH plays an important role in regulating the composition, morphology and distribution of Mg2Ni/TiH1.5 catalysts, which significantly affect their synergistic catalytic effect. Mg2Ni/TiH1.5 composite catalyst exhibits significantly improved catalytic performance compared with conventional Ni-, Ti- and Ni/Ti-based catalysts. The optimal MgH2/Mg2Ni/TiH1.5 system shows a significantly reduced desorption temperature of 212 °C which is 133 °C lower than that of pure MgH2 (345 °C), and can release 5.97 wt% hydrogen within 300s at 300 °C. Further mechanism analysis reveals that the unique flaky morphology and suitable composition of Ni/Ti LDH can significantly enhance the synergistic effect of Mg2Ni and TiH1.5, which promotes the fracture of the HH and Mg-H bonds. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2213-9567 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2213956723002542; https://doaj.org/toc/2213-9567 |
| DOI: |
10.1016/j.jma.2023.10.003 |
| Access URL: |
https://doaj.org/article/744a87b0d5b2494faf36d01ede326dc9 |
| Accession Number: |
edsdoj.744a87b0d5b2494faf36d01ede326dc9 |
| Database: |
Directory of Open Access Journals |
