| Project/Area Number |
16350112
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | University of Toyama |
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Principal Investigator |
ABE Takayuki University of Toyama, Hydrogen Isotope Research Center, Professor, 水素同位体科学研究センター, 教授 (90241546)
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| Co-Investigator(Kenkyū-buntansha) |
HATANO Yuji University of Toyama, Hydrogen Isotope Research Center, Professor, 水素同位体科学研究センター, 教授 (80218487)
HARA Masanori University of Toyama, Hydrogen Isotope Research Center, Lecture, 水素同位体科学研究センター, 講師 (00334714)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥13,700,000 (Direct Cost: ¥13,700,000)
Fiscal Year 2006: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2004: ¥9,500,000 (Direct Cost: ¥9,500,000)
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| Keywords | powdery materials / Surface modification / functional particles / barrel sputtering system / polymer electrolyte fuel cell / electrochemical catalyst / 水素吸蔵合金 |
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| Research Abstract |
Powdery materials are available in many industrial materials and products. In order to develop the more attractive powdery materials, surface modification of powdery materials is one of the useful method. However, the conventional method was only the wet process which has some problem such as disposal of waste solution, and limiting of the modified materials. Therefore, a new RF sputtering system installed with a hexagonal-barrel was developed for modifying the surfaces of powdery materials in dry process, named as barrel-sputtering system.
The validity of this system was examined for surface coating of metal, ceramics, polymer and ionic crystal powders with different grain shapes and sizes. It was found that the surfaces of powder grains could be uniformly coated with metal, alloys and oxides layers, regardless of their shapes. In addition, the size of powder grains was applicable from several centimeters to several hundred nanometers. Moreover, the form of coating materials was controlled between a thin layer and the nanoparticles.
For example to develop the functional powdery materials, the electrochemical catalyst as the usage in the polymer electrolyte fuel cell was prepared by using the system. The carbon black powder modified with Pt-Ru nanoparticles showed the excellent performance in comparison with the catalysts prepared by the conventional wet process.
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