Catalytic oxidation of carbon monoxide and propane on NiO-LaCoO3

doi:10.16085/j.issn.1000-6613.2015.09.021

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (09): 3345-3348,3362.DOI: 10.16085/j.issn.1000-6613.2015.09.021

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Catalytic oxidation of carbon monoxide and propane on NiO-LaCoO₃

ZHANG Xuanyu, CHEN Zhong, ZHOU Ying, XING Feng, HU Gengshen, LUO Mengfei

College of Chemistry and Life Science, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua 321004, Zhejiang, China

Received:2014-11-28 Revised:2015-03-16 Online:2015-09-05 Published:2015-09-05

NiO-LaCoO₃催化剂的丙烷和CO氧化性能

章轩语, 陈忠, 周颖, 邢丰, 胡庚申, 罗孟飞

浙江师范大学化学与生命科学学院, 浙江省固体表面反应化学重点实验室, 浙江金华 321004

通讯作者: 罗孟飞,研究员。E-mail:mengfeiluo@zjnu.cn
作者简介:章轩语(1992-),男,本科生。E-mail:760001249@qq.com
基金资助:
浙江省大学生新苗人才计划(2013R404042)及浙江省科技厅公益性项目(2013C31049)。

Abstract

Abstract: A series of NiO-LaCoO₃ were synthesized by solid-phase reaction method. The effects of calcination temperature and the content of Ni in catalyst on the carbon monoxide and propane oxidation performance of the as-synthesized catalysts were investigated. These catalysts were characterized by X-ray diffraction (XRD),hydrogen temperature-programmed reduction (H₂-TPR) and other techniques. The results indicate that lower calcination temperature is beneficial for better catalytic performance. Among all catalysts,10NiO-LaCoO₃ calcinated at 700℃ exhibited the best catalytic performance. The addition of Ni into the structure of LaCoO₃ can significantly enhance the carbon monoxide and propane oxidation activity,and the optimal NiO loading is 7.5%. It was also found that the catalytic performance of catalysts is highly associated with oxygen mobility in catalysts.

Key words: catalysis, catalyst support, LaCoO₃, nickel, perovskite type catalyst

摘要： 采用固相反应制备了NiO-LaCoO₃催化剂,考察了焙烧温度以及Ni含量对催化剂的CO和丙烷氧化活性的影响。用X射线粉末衍射、H₂-程序升温还原等技术对催化剂进行了表征。结果表明,在焙烧温度为700~1000℃时,焙烧温度越高,催化剂的丙烷和CO氧化性能越差,其中700℃焙烧后的10NiO-LaCoO₃催化剂的效果最好。助剂Ni能有效提高LaCoO₃催化剂的丙烷和CO氧化性能,其中Ni含量为7.5%的7.5NiO-LaCoO₃催化剂氧化性能最佳。研究发现催化剂的CO和丙烷氧化活性与催化剂中氧活动性具有相关性。

关键词: 催化, 催化剂载体, LaCoO₃, 镍, 钙钛矿型催化剂

CLC Number:

O643.3

ZHANG Xuanyu, CHEN Zhong, ZHOU Ying, XING Feng, HU Gengshen, LUO Mengfei. Catalytic oxidation of carbon monoxide and propane on NiO-LaCoO₃[J]. Chemical Industry and Engineering Progree, 2015, 34(09): 3345-3348,3362.

章轩语, 陈忠, 周颖, 邢丰, 胡庚申, 罗孟飞. NiO-LaCoO₃催化剂的丙烷和CO氧化性能[J]. 化工进展, 2015, 34(09): 3345-3348,3362.

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Catalytic oxidation of carbon monoxide and propane on NiO-LaCoO₃

NiO-LaCoO₃催化剂的丙烷和CO氧化性能

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