Skip to content
DraconiticResearch
Search Sources API
190,851 studies31 sourcesUpdated 52 min ago
Peer-reviewedCC BY-NC-NDNature Communications

Selective NdH2 exposure enhances hydrogen storage capability of Mg-Mg2Ni nanocomposites over 3700 cycles

  • Xuan Sun1,2
  • Longbing Gu1,2
  • Yangfan Lu3,4,5,6
  • Qun Luo7,8
  • Bin Hu9
  • Jianbo Li10,11,12
  • Chengzhang Wu1,2
  • Yu Zhang13
  • Qinfen Gu14
  • Qian Li15,16,17,18,19,20
20 affiliations
  1. 1School of Materials Science and Engineering, Shanghai University, Shanghai, China
  2. 2State Key Laboratory of Materials for Advanced Nuclear Energy, Shanghai University, Shanghai, China
  3. 3Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, China. [email protected]
  4. 4College of Materials Science and Engineering, Chongqing University, Chongqing, China. [email protected]
  5. 5National Engineering Research Center for Mg Alloys, Chongqing University, Chongqing, China. [email protected]
  6. 6National Innovation Center for Industry-Education Integration of Energy Storage Technology, Chongqing University, Chongqing, China. [email protected]
  7. 7School of Materials Science and Engineering, Shanghai University, Shanghai, China. [email protected]
  8. 8State Key Laboratory of Materials for Advanced Nuclear Energy, Shanghai University, Shanghai, China. [email protected]
  9. 9Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, China
  10. 10Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, China. [email protected]
  11. 11College of Materials Science and Engineering, Chongqing University, Chongqing, China. [email protected]
  12. 12National Engineering Research Center for Mg Alloys, Chongqing University, Chongqing, China. [email protected]
  13. 13College of Materials Science and Engineering, Chongqing University, Chongqing, China
  14. 14Australian Synchrotron, ANSTO, Clayton, VIC, Australia
  15. 15Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, China. [email protected]
  16. 16College of Materials Science and Engineering, Chongqing University, Chongqing, China. [email protected]
  17. 17National Engineering Research Center for Mg Alloys, Chongqing University, Chongqing, China. [email protected]
  18. 18National Innovation Center for Industry-Education Integration of Energy Storage Technology, Chongqing University, Chongqing, China. [email protected]
  19. 19School of Materials Science and Engineering, Shanghai University, Shanghai, China. [email protected]
  20. 20State Key Laboratory of Materials for Advanced Nuclear Energy, Shanghai University, Shanghai, China. [email protected]
Open at sourcePDFDOICite

Abstract

Despite the development of Mg-based hydrogen storage alloys over decades, undesired particle growth and poorly controlled interfacial connectivity have remained unsolved, significantly degrading their hydrogen storage capability. These challenges majorly arise from the uniformly dispersed multiple phases of alloys. Here, we report that the NdH2 exposed Mg-Mg2Ni nanocomposite (NdH2@Mg-Mg2Ni), realized via a scalable hot-extrusion and hydrogen-induced in-situ decomposition, can address the above-mentioned issues. In it, Mg serves as hydrogen storage phase while NdH2 and Mg2Ni serve as catalytically active sites for hydrogen dissociation, diffusion, and nucleation, respectively. In addition, the surface exposed NdH2 nanoparticles serve as the pinning center, not only ensuring the Mg-Mg2Ni interfacial connection but also avoiding the direct contact of each particle. Consequently, NdH2@Mg-Mg2Ni enables one of the lowest hydrogen release temperatures (176.2 °C) among the Mg-based alloys, releasing 5.1 wt.% H2 even at 180 °C. Thanks to the selective NdH2 exposure, NdH2@Mg-Mg2Ni exhibits an exceptional chemical and morphological stability, enabling robust hydrogen storage capability over 3700 cycles. The present study proposes a facile and scalable approach to optimize multiple-phase morphology and chemical properties of Mg-based hydrogen storage materials. Selective exposure of NdH2 exhibits bifunctional impacts on improving reaction kinetics and chemical/morphological robustness. It enabled reversible hydrogen storage capability at 180 °C which can be cycled for >3700 times.

Related

  1. Mechanical Reinforcement and Early-Stage Deterioration of Cellulose Nanocrystal-Reinforced Isosorbide-Based Polycarbonate Nanocomposites Under Humid Soil Exposure
    Yuli Nurul Maulida, Ellana Nabilah Nur Averina Ansar, Merreta Noorenza Biutty +2
    PolymersPeer-reviewedCC BY 4.0Materials & polymersCrossref
  2. BF2-Boracycles Enabling Selective ortho-Mono Hydrogen Isotope Labelling
    Yogesh N. Aher, Jernej Birk, Akhil Bhardwaj +6
    ChemRxivPreprintLicence not statedGeneral chemistryChemRxiv
  3. Selective and Modular Synthesis of N1 and C3 Dialkylated Indoles via Iridium-Catalyzed Hydrogen Borrowing
    Emanuele Silvi, Magnus J. Johansson, Belén Martín-Matute
    ChemRxivPreprintCC BYFull textInorganic & organometallic chemistryChemRxiv
  4. Selective synthesis of hierarchical nanoporous Mo–Ni intermetallic compounds as hydrogen evolution reaction catalysts via partial liquid metal dealloying
    Takeshi Wada, Yuki Minabe, Kiichi Kaji +3
    Scripta MaterialiaPeer-reviewedCC BYCatalysisHAL
  5. Potential Driven Spin-Crossover Synergized with Hydrogen-Bond Engineering in a Molecular Catalyst for Selective H2O2 Electrosynthesis.
    Libo Sun, Yanjie Zhai, Zhiying Wu +5
    Journal of the American Chemical SocietyPeer-reviewedCC BYFull textElectrochemistry & energyEurope PMC

Cite

BibTeXRIS
BibTeX
@article{sun2026selective,
  title = {{Selective NdH2 exposure enhances hydrogen storage capability of Mg-Mg2Ni nanocomposites over 3700 cycles}},
  author = {Xuan Sun and Longbing Gu and Yangfan Lu and Qun Luo and Bin Hu and Jianbo Li and Chengzhang Wu and Yu Zhang and Qinfen Gu and Qian Li},
  journal = {Nature Communications},
  year = {2026},
  month = may,
  doi = {10.1038/s41467-026-73346-z},
  url = {https://doi.org/10.1038/s41467-026-73346-z},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Selective NdH2 exposure enhances hydrogen storage capability of Mg-Mg2Ni nanocomposites over 3700 cycles
AU  - Xuan Sun
AU  - Longbing Gu
AU  - Yangfan Lu
AU  - Qun Luo
AU  - Bin Hu
AU  - Jianbo Li
AU  - Chengzhang Wu
AU  - Yu Zhang
AU  - Qinfen Gu
AU  - Qian Li
PY  - 2026
DA  - 2026/05/20
JO  - Nature Communications
DO  - 10.1038/s41467-026-73346-z
UR  - https://doi.org/10.1038/s41467-026-73346-z
AB  - Despite the development of Mg-based hydrogen storage alloys over decades, undesired particle growth and poorly controlled interfacial connectivity have remained unsolved, significantly degrading their hydrogen storage capability. These challenges majorly arise from the uniformly dispersed multiple phases of alloys. Here, we report that the NdH2 exposed Mg-Mg2Ni nanocomposite (NdH2@Mg-Mg2Ni), realized via a scalable hot-extrusion and hydrogen-induced in-situ decomposition, can address the above-mentioned issues. In it, Mg serves as hydrogen storage phase while NdH2 and Mg2Ni serve as catalytically active sites for hydrogen dissociation, diffusion, and nucleation, respectively. In addition, the surface exposed NdH2 nanoparticles serve as the pinning center, not only ensuring the Mg-Mg2Ni interfacial connection but also avoiding the direct contact of each particle. Consequently, NdH2@Mg-Mg2Ni enables one of the lowest hydrogen release temperatures (176.2 °C) among the Mg-based alloys, releasing 5.1 wt.% H2 even at 180 °C. Thanks to the selective NdH2 exposure, NdH2@Mg-Mg2Ni exhibits an exceptional chemical and morphological stability, enabling robust hydrogen storage capability over 3700 cycles. The present study proposes a facile and scalable approach to optimize multiple-phase morphology and chemical properties of Mg-based hydrogen storage materials. Selective exposure of NdH2 exhibits bifunctional impacts on improving reaction kinetics and chemical/morphological robustness. It enabled reversible hydrogen storage capability at 180 °C which can be cycled for >3700 times.
SN  - 2041-1723
ER  -