Journal
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume 16, Issue 4, Pages -Publisher
ESG
DOI: 10.20964/2021.04.32
Keywords
Nickel sulphide; Carbon Nanofibers; Electrospinning; Electrooxidation; Methanol
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This study successfully synthesized NiS nanoparticle-decorated carbon nanofibers as an electrocatalyst for methanol oxidation. Characterization techniques confirmed the good electrocatalytic activity and stability of the prepared NiS NPs/CNFs.
This study aimed at the successful synthesis of NiS nanoparticle-decorated carbon nanofibers ( NiS NPs/CNFs) by the electrospinning technique and their use as an electrocatalyst for methanol oxidation. NFs were prepared from calcination of electrospun nanofiber mats composed of polyvinyl pyrrolidone, nickel acetate tetrahydrate, and ammonium sulfide at 800 degrees C in inert atmosphere for 5 h. Standard characterization techniques (SEM, XRD, TEM, and TEM-EDX) showed the formation of nickel sulphide and carbon. The NiS NPs/CNFs prepared showed a good electrocatalytic activity toward methanol oxidation in alkaline media. The current density obtained was 20 mAcm(-2) at 4M methanol in 1M KOH solution. The NiS NPs/CNFs showed a good stability for 3000 s used in chronoamperometry test.
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