2011 Fiscal Year Final Research Report
Elucidation of Crystal Structure-Dependence of Large Palladium Nanoparticles on Hydrogen Storage Properties
| Project/Area Number |
22655040
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional materials chemistry
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| Research Institution | Kyoto University (2011)
University of Tsukuba (2010) |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | パラジウム / ナノ粒子 / 結晶構造 / 多重双晶 / 水素吸蔵 |
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| Research Abstract |
To clarify the critical size of Pd nanoparticles in which strongly-bound hydrogen can exist, amineprotected Pd nanoparticles were successfully synthesized in the 2-5 nm range by an in-situ homoepitaxial growth of the Pd nuclei. Investigation on hydrogen storage properties of multiplytwinned Pd nanoparticles(15 and 40 nm), single crystalline hexahedral Pd nanoparticles(10 nm), and polycrystalline Pd nanoparticles(6. 6 nm) revealed that the hydrogen storage/release behaviors are greatly dependent on the crystal structure, shape, and size of the Pd nanoparticles and the hydrogen atoms are strongly bound in all particles.
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