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Citation: FENG Ru-Bin, YAO Hong-Wei. Poisoning and Oxygen Adsorption of CuO/Al₂O₃ Catalyst[J]. Chinese Journal of Applied Chemistry, ;2001, 18(1): 73-75. shu

Poisoning and Oxygen Adsorption of CuO/Al₂O₃ Catalyst

1.
Chemistry Teaching Group, Hebei Institute of Architectural Science and Technology, Handan 056038

Received Date: 17 April 2000
Available Online: 7 August 2000

The effect of CuSO₄ on the property of catalyst CuO/Al₂O₃ has been investigated. The TPD-MS results showed that the amount of oxygen adsorbed on the surface of CuSO₄-CuO/Al₂O₃ increased with CuSO₄ content in the catalyst and the oxygen desorbed only at temperature above 900 K. TPSR results showed three adsorption sites of NO on the surface of CuO/Al₂O₃, respectively at 398, 643 and 683 K. The active site at 683 K was for NO decomposition and it was poisoned seriously when there was CuSO₄ in the CuO/Al₂O₃. For CuSO₄-CuO/Al₂O₃ the amount of N₂O formed from NO decomposition reduced probably due to the increase of oxygen species in the catalyst.
- CuO/Al₂O₃,
- CuSO₄,
- poisoning,
- oxygen adsorption
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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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Poisoning and Oxygen Adsorption of CuO/Al₂O₃ Catalyst