Citation: Wang Pu, Wang Xujun, Xu Zhuang, Zhou Maomao, Zheng Jiandong. Study on Synthesis of La_2-xSr_xFeNiO₆ Catalysts and Their Catalytic Activities for Methane Combustion[J]. Chemistry, ;2018, 81(7): 587-591. shu

Study on Synthesis of La_2-xSr_xFeNiO₆ Catalysts and Their Catalytic Activities for Methane Combustion

College of Material and Chemical Engineering, Chuzhou University, Chuzhou 239000

Corresponding author: Zheng Jiandong, zjd071@126.com
Received Date: 29 March 2018
Accepted Date: 14 May 2018

Figures(5)

La_2-xSr_xFeNiO₆ (x=0, 0.5, 1, 1.5, 2) series catalysts were prepared by sol-gel method using citric acid as a complexing agent. The influence of Sr doping on catalyst La₂FeNiO₆ was investigated. The titled catalysts were characterized by XRD, BET, H₂-TPR and TG-DSC techniques, and their catalytic activities were evaluated for methane combustion. The results showed that the doping of Sr can change the crystal structure of double perovskites and increase the amount of lattice oxygen. The catalyst LaSrFeNiO₆ retains a specific surface area of 7.9 m²·g^-1 and shows an excellent activity for methane combustion (the conversion of 10% and 90% is obtained at 370℃ and 535℃, respectively). Its reaction activation energy is 78.8 kJ·mol^-1, which is smaller than reaction of as-prepared other catalysts.
- Double perovskite,
- Doping,
- Methane catalytic combustion
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Study on Synthesis of La2-xSrxFeNiO6 Catalysts and Their Catalytic Activities for Methane Combustion

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通讯作者: 陈斌, bchen63@163.com

Study on Synthesis of La_2-xSr_xFeNiO₆ Catalysts and Their Catalytic Activities for Methane Combustion