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Abstract A facile strategy for synthesis of the Ni@C(N) nanocapsules was adopted, including arc-discharge method and in-suit self-polymerization method. The morphology, component, catalytic reduction performance as well as catalytic reduction… Click to show full abstract
Abstract A facile strategy for synthesis of the Ni@C(N) nanocapsules was adopted, including arc-discharge method and in-suit self-polymerization method. The morphology, component, catalytic reduction performance as well as catalytic reduction mechanism were studied in detail. The results reveal that the well-dispersed Ni core is firmly coated by N-doped carbon shell. The Ni@C(N) nanocapsules exhibit enhanced catalytic properties for reduction of 4-nitrophenol (4-NP) and methylene blue (MB), due to better synergetic effect between the Ni core and N doped C shell, compared with Ni@C nanocapsules. The kinetic reaction rate constant of the Ni@C(N) nanocapsules is about five times larger than that of Ni@C nanocapsules. Furthermore, the Ni@C(N) nanocapsules display strong recyclability for reduction of 4-NP.
Journal Title: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Year Published: 2018
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