Three-dimensionally macroporous MnZrOx catalysts for propane combustion: Synergistic structure and doping effects on physicochemical and catalytic properties.,Journal of Colloid and Interface Science

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Three-dimensionally macroporous MnZrOx catalysts for propane combustion: Synergistic structure and doping effects on physicochemical and catalytic properties.
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-03-28 , DOI: 10.1016/j.jcis.2020.03.093
Kai Zeng ₁ , Xingyun Li ₁ , Chao Wang ₂ , Zhong Wang ₃ , Peng Guo ₄ , Jun Yu ₅ , Chuanhui Zhang ₆ , Xiu Song Zhao ₇

Affiliation

Three-dimensionally macroporous (3DM) MnZrOx catalysts were fabricated to reveal the structure and Zr-doping effects on both physicochemical properties and propane combustion behaviors. The increasing addition of zirconium is favorable for the formation of 3DM structure and amorphous Mn-Zr solid solution, leading to tunable physicochemical properties. The significant activity improvement after zirconium addition was originally attributable to the superior redox ability, higher oxygen mobility and more abundant oxygen vacancy. The excellent catalytic activity, cycling stability and water resistant ability over 3DM Mn0.6Zr0.4Ox make it a promising material for hydrocarbons elimination. The comparative TPSR, in situ DRIFTs and kinetics study over 3DM and bulk catalysts emphasize the advantageous function of 3DM architecture on promoting propane adsorption, oxidation and lattice oxygen mobility.

中文翻译：

丙烷燃烧的三维大孔MnZrOx催化剂：协同结构和掺杂对理化和催化性能的影响。

制作了三维大孔（3DM）MnZrOx催化剂，以揭示结构和Zr掺杂对物理化学性质和丙烷燃烧行为的影响。锆的添加量增加有利于3DM结构和无定形Mn-Zr固溶体的形成，从而导致可调节的理化性质。添加锆后活性的显着提高最初归因于优异的氧化还原能力，更高的氧迁移率和更丰富的氧空位。与3DM Mn0.6Zr0.4Ox相比，其优异的催化活性，循环稳定性和防水性能使其成为消除烃类的有前途的材料。对比TPSR，

更新日期：2020-03-28

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