In this article, we summarize current progress on the bulk and surface characteristics of Mn-containing perovskite oxides known for their good catalytic activity in atmospheric pollutant abatement. These materials are emphasized as serious alternatives for noble metal-based catalysts (Pt, Rh, Pd) in many catalytic applications particularly in automotive exhaust catalytic converters, mainly due to their low cost, good thermal stability at high temperature and ease of preparation compared to supported noble metal catalysts. The success of such materials is mainly related to Mn³⁺ and Mn⁴⁺ mixed valence and the resulted point defects formed after incorporation of a large variety of metals with different size and charge in the perovskite structure. These parameters could also affect the Mn reducibility and oxygen species mobility considered as one of the most determining factors in catalytic activity. The effect of perovskite metallic composition on the surface Mn oxidation state and relative cations segregation as well as applications of Mn-containing perovskite oxides as catalysts for several deep oxidation reactions at low and high temperatures are presented. Particular attention is devoted to the solution combustion synthesis for Mn-containing perovskite catalysts due to its time and energy saving characteristics and high surface areas of the obtained products. These advantages open new attractive opportunities for the use of this economic process to prepare supported perovskite oxide catalysts with the aim to better control morphology and stability of both surface catalyst and supports.

在本文中，我们总结了目前在含锰钙钛矿氧化物的体积和表面特性方面的最新进展，这些氧化物以其在消除大气污染物中的良好催化活性而著称。在许多催化应用中，尤其是在汽车尾气催化转化器中，这些材料被认为是贵金属催化剂（Pt，Rh，Pd）的重要替代品，主要是由于它们的低成本，高温下良好的热稳定性以及与之相比易于制备负载型贵金属催化剂。这种材料的成功主要与Mn ³⁺和Mn ^4+有关。在钙钛矿结构中掺入了各种大小和电荷不同的金属后，形成了混合价键并形成了点缺陷。这些参数也可能影响被认为是催化活性最重要的因素之一的Mn还原性和氧的迁移率。提出了钙钛矿金属成分对表面Mn氧化态和相对阳离子偏析的影响，以及含Mn的钙钛矿氧化物在低温和高温下作为几种深度氧化反应的催化剂的应用。由于含锰的钙钛矿催化剂的时间和节能特性以及所得产物的高表面积，因此特别关注用于含锰的钙钛矿催化剂的溶液燃烧合成。