Partial oxidation of methane Syngas Bimetallic catalysts Noble metal catalysts Ceria catalysts Mechanochemistry

被引：0
作者：
Fazlikeshteli, Shiva [1 ]
Vendrell, Xavier [1 ,2 ]
Llorca, Jordi [1 ]
机构：
[1] Univ Politecn Cataluna, Inst Energy Technol, EEBE, Dept Chem Engn, Eduard Maristany 10-14, Barcelona 08019, Spain
[2] Univ Barcelona, Inst Nanosci & Nanotechnol IN2UB, Inorgan & Organ Chem Dept, Inorgan Sect, Marti I Franques 1, Barcelona 08028, Spain
来源：
FUEL | 2023年 / 334卷
关键词：
Partial oxidation of methane; Syngas; Bimetallic catalysts; Noble metal catalysts; Ceria catalysts; Mechanochemistry; SYNTHESIS GAS; HYDROGEN-PRODUCTION; GAMMA-ALUMINA; NI CATALYSTS; PERFORMANCE; CONVERSION; REACTOR; RH; CO; TEMPERATURE;
D O I：
10.1016/j.fuel.2022.126799
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：
A series of monometallic Ru, Pd, and bimetallic Ru-Pd catalysts loaded on CeO2 support have been prepared via mechanochemical and conventional incipient wetness impregnation methods and used in the partial oxidation of methane (POM) to obtain synthesis gas (H2 and CO). The influence of the preparation method, the order of addition of the metals, the Ru:Pd metal ratio, and the milling energy and time for samples prepared by the mechanochemical method, have been evaluated between 300 and 600 degrees C. The results revealed that bimetallic Ru-Pd/CeO2 catalysts outperform monometallic Ru-CeO2 and Pd-CeO2 for POM, both in terms of catalytic activity and stability. Additionally, the bimetallic Ru-Pd/CeO2 catalysts prepared by ball milling produced syngas at a much lower temperature compared to the conventional catalysts prepared by incipient wetness impregnation. Raman spectroscopy, temperature programmed reduction (H2-TPR), X-ray photoelectron spec-troscopy (XPS) and high-resolution transmission electron microscopy (HRTEM) have been used to characterize the catalysts before and after reaction.
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页数：11
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