期刊
NATURE MATERIALS
卷 13, 期 8, 页码 802-806出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NMAT4030
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资金
- Japan Synchrotron Radiation Research Institute (JASRI) [201281516]
- China Scholarship Council (CSC)
- Grants-in-Aid for Scientific Research [25870350, 24540526, 24510154, 26248019] Funding Source: KAKEN
Hydrogen is an essential component in many industrial processes. As a result of the recent increase in the development of shale gas, steam reforming of shale gas has received considerable attention as a major source of H-2, and the more efficient use of hydrogen is strongly demanded. Palladium is well known as a hydrogen-storage metal and an effective catalyst for reactions related to hydrogen in a variety of industrial processes. Here, we present remarkably enhanced capacity and speed of hydrogen storage in Pd nanocrystals covered with the metal-organic framework (MOF) HKUST-1 (copper(II) 1,3,5-benzenetricarboxylate). The Pd nanocrystals covered with the MOF have twice the storage capacity of the bare Pd nanocrystals. The significantly enhanced hydrogen storage capacity was confirmed by hydrogen pressure-composition isotherms and solid-state deuterium nuclear magnetic resonance measurements. The speed of hydrogen absorption in the Pd nanocrystals is also enhanced by the MOF coating.
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