2011 Fiscal Year Final Research Report
Fabrication of non-equilibrium nanoparticles by selective leaching and their catalytic properties
| Project/Area Number |
22656150
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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 |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
TSAI An-pang 東北大学, 多元物質科学研究所, 教授 (90225681)
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| Co-Investigator(Kenkyū-buntansha) |
KAMEOKA Satoshi 東北大学, 多元物質科学研究所, 准教授 (60312823)
FUJITA Nobuhisa 東北大学, 多元物質科学研究所, 助教 (70431468)
ISHIKAWA Kazuhiro 金沢大学, 理工学域機械工学系, 准教授 (10312448)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMODA Masahiko 物質・材料研究機構, 主席研究員 (60343836)
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| Project Period (FY) |
2010 – 2011
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| Keywords | リーチング / 非平衡相 / ナノ合金粒 / 触媒特性 |
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| Research Abstract |
It has been found that selective leaching of Al on ternary Al alloys facilitates formation of nonequilibrium phases composed of remaining elements. This process can force the formation of non-equilibrium states which could no reached by melt-spinning method. By applying this process, we found that PdNi nanoparticles formed as a product of leached Al-Pd-Ni alloy showed high activity over CO oxidation reaction comparable with Pt. In summary, we have demonstrated that the leaching is not only a process synthesizing catalysts but also an available process for preparing nonequilibrium phases.
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