Abstract
Nanostructured copper (Cu)/nickel‐ (Ni‐) coated nanoporous carbon sheets (NCS) were prepared to improve the toxic acidic vapor (hydrogen chloride, HCl) removal efficiency of NCS using a continuous bimetal electroplating method at various metal content ratios. The surface morphology and nanostructure of Cu/Ni‐NCS were observed by scanning electron microscopy and X‐ray diffraction, respectively. N2/77 K adsorption isotherms were investigated using the Brunauer‐Emmett‐Teller equation. HCl vapor removal efficiency was confirmed using two types of detection techniques: a gas detecting tube for low concentrations and gas chromatography for high concentrations. HCl removal efficiency was improved mainly in the copresence of nanostructured Cu/Ni clusters compared to the efficiencies of the as‐received and single‐metal‐plated NCS. In particular, the removal efficiency of Cu/Ni‐3 was increased by 270% compared to that of as‐received sample, but Cu/Ni‐5 showed lower efficiency than Cu/Ni‐3, indicating that suitable metal composition on NCS can accelerate HCl removal behaviors of the NCS.
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