The effects of support materials on catalytic performance were investigated in catalytic removal of toluene. And the Mn–Ce binary oxides as active components were supported on ZrO₂, SiO₂, γ-Al₂O₃ and TiO₂ support materials. Many techniques, including X-ray diffraction (XRD), Brunauer–Emmett–Teller method (BET), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR) and NH₃-temperature-programmed desorption (NH₃-TPD), were used to characterize physicochemical properties. Among the different catalysts, the MnCe/ZrO₂ catalyst with the lowest specific surface area (39.7 m²/g) shows the best catalytic activity. In terms of toluene conversion, the activity order is as follows: MnCe/ZrO₂ > MnCe/TiO₂ ≈ MnCe/SiO₂ > MnCe/Al₂O₃. The better performance of MnCe/ZrO₂ should be attributed to the low-temperature reducibility, and abundant surface species (Mn⁴⁺ and lattice oxygen). And XPS and TPR results reveal that more surface abundant Mn and Ce elements generate good interaction in MnCe/ZrO₂. The weak interaction between metal oxide and support also boosts the dispersion and complete reduction of MnCe oxides at low temperature. In addition, the in-situ DRIFTS results clarify that the carbonate species are main intermediates in MnCe/ZrO₂ sample during surface reaction process.

在甲苯的催化脱除中研究了载体材料对催化性能的影响。Mn-Ce二元氧化物作为活性组分负载在ZrO ₂、SiO ₂、γ-Al ₂ O ₃和TiO ₂载体材料上。许多技术，包括 X 射线衍射 (XRD)、Brunauer-Emmett-Teller 方法 (BET)、X 射线光电子能谱 (XPS)、程序升温还原 (TPR) 和程序升温脱附 ( _{NH 3} - TPD)，用于表征物理化学性质。在不同的催化剂中，MnCe/ZrO ₂催化剂具有最低的比表面积（39.7 m ²/g) 表现出最好的催化活性。在甲苯转化率方面，活性顺序为：MnCe/ZrO ₂  > MnCe/TiO ₂  ≈ MnCe/SiO ₂  > MnCe/Al ₂ O ₃。MnCe/ZrO ₂更好的性能应归因于低温还原性和丰富的表面物种（Mn ⁴⁺和晶格氧）。XPS和TPR结果表明，更多的表面丰富的Mn和Ce元素在MnCe/ZrO ₂中产生了良好的相互作用。金属氧化物和载体之间的弱相互作用也促进了MnCe氧化物在低温下的分散和完全还原。此外，现场DRIFTS结果表明碳酸盐是MnCe/ZrO ₂样品在表面反应过程中的主要中间体。