Single-crystal ZrCo nanoparticle for advanced hydrogen and H-isotope storage

Zhenyang Li, Shiyuan Liu, Yanhui Pu, Gang Huang, Yingbo Yuan, Ruiqi Zhu, Xufeng Li, Chunyan Chen, Gao Deng, Haihan Zou, Peng Yi, Ming Fang, Xin Sun, Junzhe He, He Cai, Jiaxiang Shang, Xiaofang Liu (), Ronghai Yu () and Jianglan Shui ()
Additional contact information
Zhenyang Li: Beihang University
Shiyuan Liu: Beihang University
Yanhui Pu: Beihang University
Gang Huang: Beihang University
Yingbo Yuan: Beihang University
Ruiqi Zhu: Beihang University
Xufeng Li: Beihang University
Chunyan Chen: Beihang University
Gao Deng: Beihang University
Haihan Zou: Beihang University
Peng Yi: Beihang University
Ming Fang: Beihang University
Xin Sun: National Key Laboratory of Scattering and Radiation
Junzhe He: Beihang University
He Cai: National Key Laboratory of Scattering and Radiation
Jiaxiang Shang: Beihang University
Xiaofang Liu: Beihang University
Ronghai Yu: Beihang University
Jianglan Shui: Beihang University

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Hydrogen-isotope storage materials are essential for the controlled nuclear fusion. However, the currently used smelting-ZrCo alloy suffers from rapid degradation of performance due to severe disproportionation. Here, we reveal a defect-derived disproportionation mechanism and report a nano-single-crystal strategy to solve ZrCo’s problems. Single-crystal nano-ZrCo is synthesized by a wet-chemistry method and exhibits excellent comprehensive hydrogen-isotope storage performances, including ultrafast uptake/release kinetics, high anti-disproportionation ability, and stable cycling, far superior to conventional smelting-ZrCo. Especially, a further incorporation of Ti into nano-ZrCo can almost suppress the disproportionation reaction. Moreover, a mathematical relationship between dehydrogenation temperature and ZrCo particle size is established. Additionally, a microwave method capable of nondestructively detecting the hydrogen storage state of ZrCo is developed. The proposed disproportionation mechanism and anti-disproportionation strategy will be instructive for other materials with similar problems.

Date: 2023
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DOI: 10.1038/s41467-023-43828-5

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