Citation: WANG Hong, WANG Jun-Li, LI Cui-Qing, SONG Yong-Ji, CHI Yao-Ling, WANG Tao. Decomposition of N₂O on ACo₂O₄/HZSM-5 Catalysts[J]. Acta Physico-Chimica Sinica, ;2010, 26(10): 2739-2744. doi: 10.3866/PKU.WHXB20100928 shu

Decomposition of N₂O on ACo₂O₄/HZSM-5 Catalysts

1.
1. Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, P. R. China;
2. Hunan Changling Petrochemical Scientific and Technical Developing Company Limited, Changling 414000, Hunan Province, P. R. China

Received Date: 13 April 2010
Available Online: 27 September 2010
Fund Project: 北京市教委科技计划(KM200910017002) (KM200910017002)北京市属高等学校人才强教计划(PHR200907129)资助项目 (PHR200907129)

ACo₂O₄(A=Mg, Ni, Zn)andACo₂O₄/HZSM-5 (A=Mg, Fe, Ni, Cu, Zn, Zr, La) catalysts were synthesized by the citric acid -ligated combustion method and by low -temperature complex impregnation, respectively. The catalysts were characterized by X-ray diffraction (XRD), ammonia temperature -programmed desorption (NH₃-TPD), scanning electron microscopy (SEM), and energy dispersive X-ray microanalysis (EDS). The performance of the catalysts was evaluated with micro fixed bed reactor. The results showed that the catalytic activity was affected by the A-site ion, and when theA -site ion was Ni, Fe, Zr, or La, the catalysts had better catalytic activity and the temperature of N₂O decomposition was lower. Compared with ACo₂O₄, the ACo₂O₄/HZSM -5 catalyst had better catalytic activity. ACo₂O₄ was present as ultrafine particles on the HZSM-5 zeolite and the ACo₂O₄/HZSM -5 catalyst had od acidity. All these factors are useful in improving the performance of these catalysts.
- N₂O,
- Spinel,
- Decompose,
- HZSM-5
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通讯作者: 陈斌, bchen63@163.com

Decomposition of N₂O on ACo₂O₄/HZSM-5 Catalysts