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Freestanding electrospun carbon nano fi bers uniformly decorated with bimetallic alloy nanoparticles as supercapacitor electrode

Kurtan, U.; Aydin, H.; Buyuk, B.; Sahinturk, U.; Almessiere, M. A.; Baykal, A.


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    <subfield code="a">In this paper, we proposed that CoNi-alloy nanoparticles (NPs) can be directly encapsulated carbon nanofibers (CNFs) via electrospinning process followed by heat treatment. By adjusting the concentration of the Co/Ni metallic salts, the electrochemical properties of the resultant nanofibers can easily be tuned. CoNi-alloy NPs embedded in CNF resulted in 1.4 times electrochemical performance compared to the pure CNF. The assembled symmetric supercapacitor (SC) shows a high a specific capacitance of 132 Fg(-1) at 1 Ag-1 and it can deliver a specific energy of 4.60 Whkg(-1) with a specific power of 250 Wkg(-1) with 85.3% capacitance retention up to 10,000 cycles. This work can provide a key strategy for a rapid design of bimetallic alloy nanoparticles directly from their salts in carbon nanofiber for various applications.</subfield>
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    <subfield code="a">Aydin, H.</subfield>
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    <subfield code="u">Istanbul Univ, Dept Chem, Fac Engn, TR-34320 Istanbul, Turkey</subfield>
    <subfield code="a">Buyuk, B.</subfield>
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    <subfield code="u">Istanbul Univ Cerrahpasa, Vocat Sch Tech Sci, Dept Mech &amp; Met Technol, TR-34500 Istanbul, Turkey</subfield>
    <subfield code="a">Sahinturk, U.</subfield>
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    <subfield code="u">Imam Abdulrahman Bin Faisal Univ, Inst Res &amp; Med Consultat IRMC, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia</subfield>
    <subfield code="a">Almessiere, M. A.</subfield>
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    <subfield code="u">Imam Abdulrahman Bin Faisal Univ, Inst Res &amp; Med Consultat IRMC, Dept Nanomed Res, POB 1982, Dammam 31441, Saudi Arabia</subfield>
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    <subfield code="u">Istanbul Univ, Vocat Sch Tech Sci, Dept Mat &amp; Mat Proc Technol, TR-34500 Istanbul, Turkey</subfield>
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