Construction of CuO-ZnO-Al2O3/CeO2 catalyst via the shape effect for methanol steam reforming

被引：0
作者：
Liao, Moyu [1 ,2 ]
Xiang, Ruofei [1 ,2 ]
Tan, Xinyu [1 ,2 ]
Dai, Zhongxu [1 ,2 ]
Qin, Hang [3 ]
Xiao, Hanning [3 ]
机构：
[1] China Three Gorges Univ, Coll Mat & Chem Engn, Key Lab Inorgan Nonmet Crystalline & Energy Conver, Yichang 443002, Peoples R China
[2] Hubei Three Gorges Lab, Yichang 443007, Peoples R China
[3] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
来源：
RENEWABLE ENERGY | 2025年 / 247卷
基金：
中国国家自然科学基金;
关键词：
CuO-ZnO-Al; 2; O; 3; /CeO; catalyst; Methanol steam reforming; CeO; morphology; Catalytic performance; Oxygen vacancy; METAL-ORGANIC FRAMEWORK; HYDROGEN-PRODUCTION; OXYGEN VACANCIES; CRYSTAL-PLANE; CO OXIDATION; PERFORMANCE; SUPPORT; CERIA; COMBUSTION; CEO2;
D O I：
10.1016/j.renene.2025.123054
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
CuO-ZnO-Al2O3/CeO2 catalysts based on CeO2 nanocubes (CeO2-NC), nanopolyhedrons (CeO2-NP), and nano-rods (CeO2-NR) were synthesized by hydrothermal and incipient impregnation methods, and their catalytic performance in methanol steam reforming was tested. The correlation between the activity data and the physicochemical properties of the catalysts indicated that the micromorphology of the CeO2 support significantly influenced the catalytic performance. The excellent reactivity of CuO-ZnO-Al2O3/CeO2-NR with 100 % methanol conversion rate at 280 degrees C was attributed to the small particles with large specific surface area, abundant oxygen vacancies and chemisorbed oxygen, superior reducibility and strong methanol adsorption capacity. Meanwhile, the strong interaction between CuO-ZnO-Al2O3 and CeO2-NR greatly improved the catalytic efficiency. Besides, CuO-ZnO-Al2O3/CeO2-NR showed the lowest CO selectivity of 0.41-1.86 % in the range of 230-280 degrees C and a stability of over 40 hat 280 degrees C, demonstrating its potential as an excellent catalyst for methanol steam reforming.
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页数：12
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