用快速老化方法评价国产三效催化剂性能

我国自主研究开发的车用三效催化剂具有贵金属含量低和成本低的特点，但其性能指标特别是耐久性能否满足实用化要求的问题一直受到国内外汽车界的极大关注。

Performance Evaluation of Domestic Three-way Catalysts by Accelerated Aging Test

The automotive three-way catalysts (TWC) developed by domestic catalyst manufactures have low noble metal content and low cost. But their performance parameters need to be evaluated. In this paper, the evaluation test results of the activity and durability about 30 kinds of domestic TWCs and their comparison with foreign products are obtained by accelerated aging test, which is a general approach abroad but is used first time at home. The results show that the performances of some domestic catalysts have reached or are close to the level of similar products abroad and can basically satisfy the current requirements of practicality.