Research Article


2020, 13(8): 2063–2071


Synergy between metallic components of MoNi alloy for catalyzing highly efficient hydrogen storage of MgH2

Meng Chen1,2,§, Yanhui Pu1,§, Zhenyang Li1, Gang Huang1, Xiaofang Liu1 (✉), Yao Lu1, Wukui Tang1, Li Xu3, Shuangyu Liu3, Ronghai Yu1 (✉), and Jianglan Shui1 (✉)

View Author's information

1 School of Materials Science and Engineering, Beihang University, Beijing 100191, China
2 Beijing Key Laboratory of Civil Aircraft Structures and Composite Material, COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, China
3 Material Laboratory of State Grid Corporation of China, Global Energy Interconnection Research Institute Beijing, Beijing 102211, China
§ Meng Chen and Yanhui Pu contributed equally to this work.

Keywords: hydrogen storage, Mg hydride, catalyst, synergetic effect, MoNi alloy
Full article PDF
Cite this article(Endnote)
Share this article

views: 300

Citations: 0

  • Abstract
  • References
  • Electronic Supplementary Material
Catalysts play a critical role in improving the hydrogen storage kinetics in Mg/MgH2 system. Exploring highly efficient catalysts and catalyst design principles are hot topics but challenging. The catalytic activity of metallic elements on dehydrogenation kinetics generally follows a sequence of Ti>Nb>Ni>V>Co>Mo. Herein, we report a highly efficient alloy catalyst composed of low-active elements of Mo and Ni (i.e. MoNi alloy) for MgH2 particles. MoNi alloy nanoparticles show excellent catalytic effect, even outperforming most advanced Ti-based catalysts. The synergy between Mo and Ni elements can promote the break of Mg–H bonds and the dissociation of hydrogen molecules, thus significantly improves the kinetics of Mg/MgH2 system. The MoNi-catalyzed Mg/MgH2 system can absorb and release 6.7 wt.% hydrogen within 60 s and 10 min at 300 oC, respectively, and exhibits excellent cycling stability and low-temperature hydrogen storage performance. This study provides a strategy for designing efficient catalysts for hydrogen storage materials using the synergy of metal elements.
Related Article
Cite this article

Synergy between metallic components of MoNi alloy for catalyzing highly efficient hydrogen storage of MgH2. Nano Res. 2020, 13(8): 2063–2071

Download citation