日本科学家近日研制出一种新型催化材料，它不仅能提高催化能力，还能大大减少汽车废气转换器中贵金属的用量。一般汽车废气转换器的核心部件是有大量微孔、表面涂以粉状催化剂的陶瓷。这些含有钯、铂、铑等贵金属成分的催化剂，由于转换器靠近发动机，高温会使催化剂颗粒结合 Japanese scientists recently developed a new type of catalytic material, which not only can improve the catalytic capacity, but also greatly reduce the amount of precious metal used in automobile exhaust gas converter. The core components of the general automotive exhaust converter is a large number of microporous, coated with powdered catalyst ceramic surface. These catalysts, which contain precious metal components such as palladium, platinum and rhodium, combine with the catalyst particles because of the proximity of the converter to the engine.