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Citation: Xiao Feng-Shou, Ying Pin-Liang, Xin Qin, Guo Xie-Xian. A Characterization of Various Co-SITES on Co-Mo/Al₂O₃ and Ru-Co-Mo/Al₂O₃ Catalysts[J]. Acta Physico-Chimica Sinica, ;1992, 8(03): 321-325. doi: 10.3866/PKU.WHXB19920308 shu

A Characterization of Various Co-SITES on Co-Mo/Al₂O₃ and Ru-Co-Mo/Al₂O₃ Catalysts

1.
Department of Chemistry, Jilin University, Changchun 130023; National Laboratory for Catalysis, Dalian Institute of Chemical Physics, Chinese Academia Sciences, Dalian 116023

Received Date: 31 December 1990
Available Online: 15 June 1992

An investigation of the adsorption of NO on reduced Co-Mo/Al_2O_3 and Ru-Co-Mo/Al_2O_3 catalysts has been performed by using IR and MS spectros-copies, and it was found that two IR bands appeared at 1895 and 1880 cm~(-1) in the IR spectra and three peaks exhibited at 353, 423 and 473 K in the TPD-MS profiles. These are attributed to the various Co-sites on the surface of catalysts.Comparing Co-Mo/Al_2O_3 catalyst with Ru-Co-Mo/Al_2O_3 it was found that the addition of Ru in Ru-Co-Mo/Al_2O_3 markedly led to an increase of the rate and amount for NO adsorption, which may indicate that the HDS activity of Ru-Co-Mo/Al_2O_3 was much higher than that of Co-Mo/Al_2O_3 catalyst.
- HDS catalysts; Co-Mo/Al₂O₃; Ru-Co-Mo/Al₂O₃; NO adsorption; IR; MS and Co-sites
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沈阳化工大学材料科学与工程学院沈阳 110142

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A Characterization of Various Co-SITES on Co-Mo/Al2O3 and Ru-Co-Mo/Al2O3 Catalysts

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通讯作者: 陈斌, bchen63@163.com

A Characterization of Various Co-SITES on Co-Mo/Al₂O₃ and Ru-Co-Mo/Al₂O₃ Catalysts