Preparation of Cu0.1-xNixCe0.9O2-y catalyst by ball milling and its CO catalytic oxidation performance |
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| Affiliation: | 1. School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, Liaoning, China;2. Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230026, People''s Republic of China;1. Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/Energy Storage Joint Research Center, School of Energy and Environment, Southeast University, No.2 Si Pai Lou, Nanjing 210096, China;2. School of Electronic Engineering, Nanjing Xiao Zhuang University, 211171 Nanjing, China;3. State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi''an Jiaotong University, Xian 710049, China;1. Bio-inspired and Advanced Energy Research Center, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi''an, Shaanxi 710129, China;2. Huawei Digital Power Technologies Co., Ltd, Xi''an, Shaanxi 710129, China;1. School of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308, Qingdao 266071, China;2. Qingdao Hengxing University of Science and Technology, Jiushui East Road 588, Qingdao 266100, China |
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| Abstract: | A series of Cu0.1-xNixCe0.9O2-y catalysts with different Cu/Ni molar ratios were prepared by the ball milling method. The obtained catalytic materials were characterized by XRD, H2-TPR, BET, XPS and Ramen and the effects of different Cu/Ni content on the structure, properties and CO catalytic oxidation performance of the catalysts were explored. The results evidenced the formation of Cu–Ni–Ce mixed oxide solid solution in all ternary catalysts. In addition, there is a synergistic interaction between Cu and Ni in ternary catalysts, resulting in more oxygen vacancies and improved reduction performance, and hence demonstrating better CO catalytic oxidation activity in the ternary catalysts than binary ones. Under a GHSV of 60000 mL·gcat−1·h−1, the required reaction temperature for reaching less than 10 ppm CO is lowed from 160 °C with Cu0·1Ce0·9O2-y to 130 °C with Cu0·07Ni0·03Ce0·9O2-y. |
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| Keywords: | CO oxidation Mechanical ball milling Synergistic effect Cu–Ni–Ce solid Solution |
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