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The authors describe the application of two types of metallic foams modified with either graphene (GR) or carbon nanotubes (CNTs) as voltammetric electrodes in order to discriminate rice wines of different age and brand. Two types of bare metallic foams (bare Ni and Cu foam electrodes) were combined with GR or CNTs to give four types of modified metallic foams, referred to as GR/Ni, GR/Cu, CNT/Ni,...
The work reported in this paper demonstrates for the first time that graphene modified glassy carbon electrode (Gr/GC) show remarkable electrocatalysis towards Pu(IV)/Pu(III) redox reaction and the results were compared with that of single-walled carbon nanotubes modified GC (SWCNTs/GC) and glassy carbon (GC) electrodes. Graphene catalyzes the exchange of current of the Pu(IV)/Pu(III) couple by reducing...
This paper presents direct growth approach for production of graphene and carbon nanotubes in an on-chip manner towards integrated devices. Vertically aligned arrays of carbon nanotubes and edge-oriented graphene are synthesized by microwave plasma-enhanced chemical vapor deposition using methane and hydrogen as precursors. Cyclic voltammetry (CV) and electrochemical energy impedance measurements...
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