Synthesis of nickel nanosheet/graphene composites for biosensor applications |
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| Affiliation: | 1. Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China;2. Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China;3. School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China;1. Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China;2. Tianjin Key Laboratory of Film Electronic and Communication Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China;3. School of Electronic and Information Engineering, Tianjin Vocational Institute, Tianjin 300410, PR China;4. School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China;1. University of Novi Sad, Faculty of Technology, Bulevar cara Lazara 1, 21000, Novi Sad, Serbia;2. University of Szeged, Department of Applied and Environmental Chemistry, Rerrich Bela ter 1, H-6720, Szeged, Hungary;1. State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, 135 Yaguan Road, Haihe Education Park, Tianjin 300072, China;2. Laboratory for Fuel Cell and Green Energy RD&D, Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China;2. Wuhan Iron and Steel Group Refractory Materials Limited Liability Company, Wuhan 430081, China |
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| Abstract: | The growth of graphene-based nanostructures using chemical vapor deposition (CVD) is a promising approach for novel applications. CVD processes typically use high-quality metal films as catalyst substrates, and require accurate control over the experimental conditions. Here, we report the direct synthesis of Ni nanosheet/graphene composites using a DC arc plasma jet CVD method, using Ni(NO3)2 as a catalyst precursor. The composites consisted of graphene nanosheets, graphene nanoribbons, and core–shell Ni/graphene nanosheets. In this process, no catalyst substrate was required, and the very high-quality graphene grew at the {1 1 1} plane of the Ni. It was demonstrated that the Ni nanosheet/graphene composites could be used as sensitive films for l-alanine sensing. The strong electrocatalytic properties resulted from the synergetic effects of the graphene, which enhanced the electron transfer, and the high catalytic activity of the Ni. |
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