Boosting toluene deep oxidation by tuning metal-support interaction in MOF-derived Pd@ZrO2 catalysts: The role of interfacial interaction between Pd and ZrO2

被引：98

作者：

Bi, Fukun ^{[1
,2
]}

Ma, Shuting ^{[1
]}

Gao, Bin ^{[1
]}

Liu, Baolin ^{[2
]}

Huang, Yuandong ^{[1
]}

Qiao, Rong ^{[1
]}

Zhang, Xiaodong ^{[1
,3
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Sch Hlth Sci & Engn, Shanghai 200093, Peoples R China

[3] Shanghai Noncarbon Energy Convers & Utilizat Inst, Shanghai 200240, Peoples R China

来源：

FUEL | 2024年 / 357卷

基金：

中国国家自然科学基金;

关键词：

Toluene deep oxidation; Metal -support interaction; MOF derivatives; Supported Pd catalysts; Interfacial interaction; OXYGEN VACANCIES; ACTIVE-SITES; PERFORMANCE; COBALT; COMBUSTION; PD/ZRO2; OXIDE;

D O I：

10.1016/j.fuel.2023.129833

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The regulation of metal-support interaction is one of the productive strategies to enhance volatile organic compounds (VOCs) deep degradation. Herein, Pd@ZrO2 catalysts were synthesized via using in-situ growth Zr-based metal organic framework (MOF) Pd@UiO-66 as the precursor to boost toluene deep degradation. Compared with Pd@ZrO2-Zr(OH)4 synthesized by using Zr(OH)4 as the precursor, MOF-derived Pd@ZrO2 catalysts with different calcination time exhibited more superior catalytic performance, water-resistance and stability. Characterizations results indicated the occurrence of interfacial interaction in MOF-derived Pd@ZrO2 induced the better reducibility at low-temperature and the generation of oxygen vacancies, enhanced Oads species content, weakened Zr-O bond strength, improved the mobility of Olat species, which caused its better toluene degradation performance. Simultaneously, in-situ diffuse reflectance infrared Fourier transform spec-troscopy results clarified that the interfacial interaction heightened the adsorption and activation ability for gaseous oxygen to form reactive oxygen species and replenish consumed Olat species, promoted toluene ring -opening reaction, reduced benzoate acid species cumulation, expedited the fast deeply degradation of toluene to CO2 and H2O. This work may provide a new perspective on MOF-derived catalysts with better performance for VOCs degradation deeply by tuning interfacial interaction.

引用

页数：13

共 73 条

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