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Ceria Foam with Atomically Thin Single-Crystal Walls

Authors

  • Jun Xing,

    1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237 (China)
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    • These authors contributed equally to this work.

  • Dr. Hai Feng Wang,

    1. Labs for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237 (China)
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    • These authors contributed equally to this work.

  • Dr. Chen Yang,

    1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237 (China)
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    • These authors contributed equally to this work.

  • Dong Wang,

    1. Labs for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237 (China)
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  • Prof. Hui Jun Zhao,

    1. Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University, Queensland 4222 (Australia)
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  • Prof. Guan Zhong Lu,

    1. Labs for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237 (China)
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  • Prof. Dr. P. Hu,

    1. School of Chemistry and Chemical Engineering, The Queen's University of Belfast, Belfast, BT9 5AG (UK)
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  • Prof. Dr. Hua Gui Yang

    Corresponding author
    1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237 (China)
    • Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237 (China)
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  • This work was financially supported by Scientific Research Foundation of East China University of Science and Technology (YD0142125), Pujiang Talents Programme of Science and Technology Commission of Shanghai Municipality (09J1402800), Shuguang Talents Programme of Education Commission of Shanghai Municipality (09SG27), National Natural Science Foundation of China (20973059, 91022023, 21076076), Fundamental Research Funds for the Central Universities (WJ0913001), Program for Prof. of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, and Program for New Century Excellent Talents in University (NCET-09-0347)

Abstract

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All in a lather: A three-dimensional CeO2 foam with long-range ultrathin (4–8 Å) single-crystalline walls was synthesized successfully by thermal decomposing CeGeO4 crystals under an NH3 atmosphere. First-principles calculations were also performed to understand the feasibility and reaction pathways of thermal decomposition of CeGeO4. Scale bar: 200 nm.

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