This article highlights recent advances in the development of transition metal-based catalysts for formaldehyde oxidation, particularly the enhancement of their catalytic activity for low-temperature oxidation. Various factors that enhance low-temperature activity are reviewed, such as morphology and tunnel structures, synthesis methods, specific surface area, amount and type of active surface oxygen species, oxidation state, and density of active sites are discussed. In addition, catalyst immobilization for practical air purification, reaction mechanism of formaldehyde oxidation, and the reaction parameters affecting the overall efficiency of the reaction are also reviewed.

中文翻译：

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甲醛氧化用过渡金属氧化物催化剂的研究进展

本文重点介绍了用于甲醛氧化的过渡金属基催化剂的最新进展，特别是增强了其对低温氧化的催化活性。综述了提高低温活性的各种因素，如形态和隧道结构，合成方法，比表面积，活性表面氧种类的数量和类型，氧化态以及活性位点的密度。此外，还综述了用于实际空气净化的催化剂固定化，甲醛氧化的反应机理以及影响反应总体效率的反应参数。