Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon

Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (12): 2279.

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Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon

FU Mao-Sheng^1,2*, CHEN Lin-Shen³, CHEN Song-Ying¹

1. Institute of Catalysis, Zhejiang University, Hangzhou 310028, China;
2. Department of Environmental and Chemical Engineering, Nanchang Institute of Aeronautic Technology, Nanchang 330034, China;
3. Measurement and Analysis Center, Zhejiang University, Hangzhou 310028, China

Received:2004-10-19 Online:1905-03-14 Published:1905-03-14
Contact: FU Mao-Sheng;E-mail:fu_maosheng@163.com

Abstract

Abstract:

The structure of the doped ferrite prepared by mixing ions co-precipitation was characterized by XRD, TGA and H_2-TPR, and the catalytic performance of CO₂decomposition to C with its hydrogen-reduced Cr³⁺doped ferrite was evaluated. The results show that NiFe₂O₄ doped Cr³⁺ has a single spinel structure and nano-size crystal. The results also indicate that the introduction of Cr³⁺ into B site of the spinel structure of NiFe₂O₄could enhance its structure stability remarkably during the process of reaction cycles of H₂ reduction and CO₂decomposition, as well as did decrease greatly the collapse rate of its structure, resulting in prolonging the reaction cycle life(over 35 cycles) and increasing carbon deposit(about 25.3%).

Key words: NiFe₂O₄; Doping; Oxygen-deficiency; CO₂ decomposition, NiFe₂O₄, Doping, Oxygen-deficiency, CO₂ decomposition

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TrendMD:

FU Mao-Sheng, CHEN Lin-Shen, CHEN Song-Ying. Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon[J]. Chem. J. Chinese Universities, 2005, 26(12): 2279.

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Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon

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