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Free-Standing Ultrathin Cobalt Nanosheets Synthesized by Means of In Situ Reduction and Interface-Directed Assembly and Their Magnetic Properties

Authors

  • Shichao Du,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
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  • Dr. Zhiyu Ren,

    Corresponding author
    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
    • Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)

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  • Dr. Yang Qu,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
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  • Dr. Jian-qiang Wang,

    1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 239 Zhang Heng Road, Pudong District, Shanghai 201204 (P.R. China)
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  • Lingjun Kong,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
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  • Prof. Keying Shi,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
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  • Dr. Buhe Bateer,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
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  • Prof. Honggang Fu

    Corresponding author
    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)
    • Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150080 (P.R. China)

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Abstract

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Making a stand: By means of in situ reduction and self-assembly at an unconventional liquid–liquid interface, free-standing ultrathin cobalt nanosheets (CoNs) consisting of nanosized Co clusters were successfully synthesized (see figure). The as-prepared CoNs display ferromagnetic behavior and a large thermal irreversibility. This strategy has been used also in the synthesis of Fe and Ni nanosheets.

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