| 简介 |
PROBLEM TO BE SOLVED : To produce an exhaust gas cleaning catalyst developing a sufficient capacity even during a low-temperature (400°C or below) operation when starting of a car or at the time of idling by enhancing the activity of a noble metal itself and preventing the decrease in the activity of the noble metal at a high temperature. SOLUTION : In this exhaust gas cleaning catalyst, Pd is supported on a rare earth Al oxide and at least one alkaline earth metal is added to the rare earth Al oxide. COPYRIGHT : (C)2005, JPO&NCIPI |
客服热线：
手机版
二维码
