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산소발생반응을 위한 CuCo2O4 나노섬유 전기화학 촉매 합성 및특성 분석

Synthesis and Characterization of CuCo2O4 Nanofiber Electrocatalyst for Oxygen Evolution Reaction

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초록

The non-noble 1D nanofibers(NFs) prepared by electrospinning and calcination method were used as oxygen evolution reaction (OER) electrocatalyst for water electrolysis. The electrospinning process and rate of solution composition was optimized to prepare uniform and non-beaded PVP polymer electrospun NFs. The diameter and morphology of PVP NFs changed in accordance with the viscosity and ion conductivity. The clean metal precursor contained electrospun fibers were synthesized via the optimized electrospinning process and solution composition. The calcined CuCo2O4 NFs catalyst showed higher activity and long-term cycle stability for OER compared with other Co3O4, NiCo2O NF catalysts. Furthermore, the CuCo2O4 NFs maintained the OER activity during long-term cycle test compared with commercial CuCo2O4 nanoparticle catalyst due to unique physicochemical and electrochemical properties by1D nanostructure.

Abstract

The non-noble 1D nanofibers(NFs) prepared by electrospinning and calcination method were used as oxygen evolution reaction (OER) electrocatalyst for water electrolysis. The electrospinning process and rate of solution composition was optimized to prepare uniform and non-beaded PVP polymer electrospun NFs. The diameter and morphology of PVP NFs changed in accordance with the viscosity and ion conductivity. The clean metal precursor contained electrospun fibers were synthesized via the optimized electrospinning process and solution composition. The calcined CuCo2O4 NFs catalyst showed higher activity and long-term cycle stability for OER compared with other Co3O4, NiCo2O NF catalysts. Furthermore, the CuCo2O4 NFs maintained the OER activity during long-term cycle test compared with commercial CuCo2O4 nanoparticle catalyst due to unique physicochemical and electrochemical properties by1D nanostructure.

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