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Toward atomically-precise synthesis of supported bimetallic nanoparticles using atomic layer deposition

Author

Listed:
  • Junling Lu

    (University of Science and Technology of China)

  • Ke-Bin Low

    (Research Resources Center, University of Illinois at Chicago)

  • Yu Lei

    (Argonne National Laboratory)

  • Joseph A. Libera

    (Argonne National Laboratory)

  • Alan Nicholls

    (Research Resources Center, University of Illinois at Chicago)

  • Peter C. Stair

    (Argonne National Laboratory
    Northwestern University)

  • Jeffrey W. Elam

    (Argonne National Laboratory)

Abstract

Multi-metallic nanoparticles constitute a new class of materials offering the opportunity to tune the properties via the composition, atomic ordering and size. In particular, supported bimetallic nanoparticles have generated intense interest in catalysis and electrocatalysis. However, traditional synthesis methods often lack precise control, yielding a mixture of monometallic and bimetallic particles with various compositions. Here we report a general strategy for synthesizing supported bimetallic nanoparticles by atomic layer deposition, where monometallic nanoparticle formation is avoided by selectively growing the secondary metal on the primary metal nanoparticle but not on the support; meanwhile, the size, composition and structure of the bimetallic nanoparticles are precisely controlled by tailoring the precursor pulse sequence. Such exquisite control is clearly demonstrated through in situ Fourier transform infrared spectroscopy of CO chemisorption by mapping the gradual atomic-scale evolution in the surface composition, and further confirmed using aberration-corrected scanning transmission electron microscopy.

Suggested Citation

  • Junling Lu & Ke-Bin Low & Yu Lei & Joseph A. Libera & Alan Nicholls & Peter C. Stair & Jeffrey W. Elam, 2014. "Toward atomically-precise synthesis of supported bimetallic nanoparticles using atomic layer deposition," Nature Communications, Nature, vol. 5(1), pages 1-9, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4264
    DOI: 10.1038/ncomms4264
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    Cited by:

    1. Xiaohui Zhang & Zhihu Sun & Rui Jin & Chuwei Zhu & Chuanlin Zhao & Yue Lin & Qiaoqiao Guan & Lina Cao & Hengwei Wang & Shang Li & Hancheng Yu & Xinyu Liu & Leilei Wang & Shiqiang Wei & Wei-Xue Li & Ju, 2023. "Conjugated dual size effect of core-shell particles synergizes bimetallic catalysis," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Bardhan, Soubhik K. & Gupta, Shelaka & Gorman, M.E. & Haider, M. Ali, 2015. "Biorenewable chemicals: Feedstocks, technologies and the conflict with food production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 506-520.
    3. Pingping Wei & Sai Chen & Ran Luo & Guodong Sun & Kexin Wu & Donglong Fu & Zhi-Jian Zhao & Chunlei Pei & Ning Yan & Jinlong Gong, 2024. "Stable and homogeneous intermetallic alloys by atomic gas-migration for propane dehydrogenation," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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