| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide method for depositing a nanoparticle of an exhaust gas catalyst, and a method for producing the exhaust gas catalyst. <P>SOLUTION: A pulse voltage is impressed between a trigger electrode 13 and a cathode 12 in a vacuum atmosphere by using a coaxial vacuum arc vapor deposition source 1 to generate trigger discharge. A capacitor and a DC power source are connected to each of the cathode 12 and an anode 11, and a DC discharge voltage of 60-100 V is impressed while keeping the capacitance of the capacitor within 360-1,080 μF to induce arc discharge intermittently. Charged particles of a catalytic metal to be produced are supplied to/vapor-deposited on the surface of a carrier being alumina powder or other alumina powder, in which an oxide of a metal consisting of zirconium or lanthanoid is mixed, to obtain the catalyst consisting of the catalytic metal nanoparticle-deposited carrier. <P>COPYRIGHT: (C)2010,JPO&INPIT |
