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Thermally stable Ir/Ce0.9La0.1O2 catalyst for high temperature methane dry reforming reaction

         

摘要

In this study,the use of a thermally stable Ir/Ce0.gLa0.1O2 catalyst was investigated for the dry reforming of methane.The doping of La2O3 into the CeO2 lattice enhanced the chemical and physical properties of the Ir/Ce0.9La0.1O2 catalyst,such as redox properties,Ir dispersion,oxygen storage capacity,and thermal stability,with respect to the Ir/CeO2 catalyst.Hence,the Ir/Ce0.gLa0.1O2 catalyst exhibits higher activity and stabler performance for the dry reforming of methane than the Ir/CeO2 catalyst.This observation can be mainly attributed to the stronger interaction between the metal and support in the Ir/Ce0.gLa0.1O2 catalyst stabilizing the catalyst structure and improving the oxygen storage capacity,leading to negligible aggregation of Ir nanoparticles and the Ce0.gLa0.1O2 support at high temperatures,as well as the rapid removal of carbon deposits at the boundaries between the Ir metal and the Ce0.gLa0.1O2 support.

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  • 来源
    《纳米研究(英文版)》 |2017年第2期|364-380|共17页
  • 作者单位

    Laboratory of Energy and Environment Interface Engineering, National University of Singapore Suzhou Research Institute, Suzhou 215123, China;

    School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;

    Laboratory of Energy and Environment Interface Engineering, National University of Singapore Suzhou Research Institute, Suzhou 215123, China;

    Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore;

    Singapore-Peking University Research Center for a Sustainable Low-Carbon Future, 1 CREATE Way, # 15-01, CREATE Tower, Singapore 138602, Singapore;

    School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of the Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, China;

    School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;

    Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore;

    College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;

    Department of Chemistry, Shanghai Normal University, Shanghai 200234, China;

    Department of Chemistry, Shanghai Normal University, Shanghai 200234, China;

    Department of Chemistry, Shanghai Normal University, Shanghai 200234, China;

    Laboratory of Energy and Environment Interface Engineering, National University of Singapore Suzhou Research Institute, Suzhou 215123, China;

    Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore;

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