Research Article

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2011, 4(12): 1233–1241

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https://doi.org/10.1007/s12274-011-0174-1

One-Step Synthesis of Magnetically Recyclable Au/Co/Fe Triple-Layered Core–Shell Nanoparticles as Highly Efficient Catalysts for the Hydrolytic Dehydrogenation of Ammonia Borane

Kengo Aranishi1,2, Hai-Long Jiang1, Tomoki Akita1,4, Masatake Haruta3,4, and Qiang Xu1,2,4 ()

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1 National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
2 Graduate School of Engineering, Kobe University, Nada Ku, Kobe, Hyogo 657-8501, Japan
3 Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
4 Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan

Keywords: Triple-layered, core–shell nanoparticles, heterogeneous catalysis, ammonia borane, hydrogen generation
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  • Abstract
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Magnetically recyclable Au/Co/Fe core–shell nanoparticles (NPs) have been successfully synthesized via a one-step in situ procedure. Transmission electron microscope (TEM), energy dispersive X-ray spectroscopic (EDS), and electron energy-loss spectroscopic (EELS) measurements revealed that the trimetallic Au/Co/Fe NPs have a triple-layered core–shell structure composed of a Au core, a Co-rich inter-layer, and a Fe-rich shell. The Au/Co/Fe core–shell NPs exhibit much higher catalytic activities for hydrolytic dehydrogenation of ammonia borane (NH3BH3, AB) than the monometallic (Au, Co, Fe) or bimetallic (AuCo, AuFe, CoFe) counterparts.
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One-Step Synthesis of Magnetically Recyclable Au/Co/Fe Triple-Layered Core–Shell Nanoparticles as Highly Efficient Catalysts for the Hydrolytic Dehydrogenation of Ammonia Borane. Nano Res. 2011, 4(12): 1233–1241 https://doi.org/10.1007/s12274-011-0174-1

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