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摘要:柴油车尾气排放的PM(碳黑)颗粒已引起了广泛的关注。对于柴油车尾气PM颗粒的处理必须使用高效的的催化剂来使其完全氧化。本文总结了几种不同类型的柴油车PM颗粒后处理催化剂:碱(碱土)金属催化剂、纳米贵金属催化剂、过渡金属纳米催化剂以及复合多组分催化剂,分析了它们的可能的催化机理,概述了这些催化剂的优、缺点,并对它们在实际应用中存在的问题和发展方向进行了探讨。
Abstract: PM (carbon black) particles emitted from the exhaust of diesel vehicles have drawn wide attention. For diesel particulate matter PM exhaust treatment must use efficient catalyst to make it completely oxidized. This article summarizes several different types of PM particulate post-treatment catalysts for diesel vehicles: alkali (alkaline earth) metal catalysts, noble metal catalysts, transition metal nanocatalysts, and composite multi-component catalysts, analyzing their possible catalytic mechanisms and summarizing these The advantages and disadvantages of the catalyst, and discusses the problems and development directions in the practical application.