Co3Se4 nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications

Ranjith Bose, Bebi Patil, Vasanth Rajendiran Jothi, Tae Hyun Kim, Paulraj Arunkumar, Heejoon Ahn, Sung Chul Yi

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    44 Scopus citations

    Abstract

    Co3Se4 on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H2 liberated, delivers a high HER activity, by reaching η10 at 174 mV and 240 mV, Tafel slope of 73.2 and 43.8 mV dec−1 in alkaline and acidic medium respectively. Co3Se4/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g−1 at a 2 mV s−1 scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles.

    Original languageBritish English
    Pages (from-to)62-71
    Number of pages10
    JournalJournal of Industrial and Engineering Chemistry
    Volume65
    DOIs
    StatePublished - 25 Sep 2018

    Keywords

    • Carbon nanotubes
    • CoSe
    • Electrocatalyst
    • Hydrogen evolution
    • Supercapacitor

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