Abstract
We developed a versatile and facile method for synthesizing gold core-based nanoreactor with yolk/shell structure using branched polyethyleneimine (bPEI) as the carbon source for the first time. Colloidal gold particles were first synthesized and covered with a silica layer to form AuNPs@SiO2 spheres, and then, the spheres were coated by a layer of bPEI. The hydrothermal carbonization of as-prepared AuNPs@SiO2@bPEI gave AuNPs@SiO2@bPEI-derived carbon nanoparticles (CNPs). The transformation from core/shell to yolk/shell structure was achieved through selective etching of the silica layer. The yolk/shell AuNPs@bPEI-derived CNPs was successfully employed in the catalytic reduction of 4-nitrophenol as a model reaction.
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The financial support provided by the Iran National Science Foundation (INSF) is gratefully acknowledged.
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Nabid, M.R., Bide, Y., Shojaipour, M. et al. Yolk/Shell AuNPs@Polyethyleneimine-Derived Carbon Nanoparticles as Nanoreactor for Catalytic Nitroarenes Reduction. Catal Lett 146, 229–237 (2016). https://doi.org/10.1007/s10562-015-1637-x
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DOI: https://doi.org/10.1007/s10562-015-1637-x