Incorporation of iron oxide into CNT/GNF as a high-performance supercapacitor electrode

CNT/GNF/Fe2O3 ternary composites were synthesized via a simple hydrothermal route. The electrochemical findings reveal that the incorporation of iron oxide (Fe2O3) into CNT/GNF (174 F g−1) boosts the specific capacitance (Cs) to 307 F g−1 at 10 mV s−1. The system also shows good capacity retention,...

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Bibliographic Details
Main Authors: Krishnan, S. (Author), Mamat, M.S (Author), Ramli, N.I.T (Author), Rashid, S.A (Author), Sulaiman, Y. (Author)
Format: Article
Language:English
Published: Elsevier Ltd 2018
Subjects:
CNT
GNF
Online Access:View Fulltext in Publisher
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LEADER 02197nam a2200421Ia 4500
001 10.1016-j.matchemphys.2018.03.044
008 220120s2018 CNT 000 0 und d
020 |a 02540584 (ISSN) 
245 1 0 |a Incorporation of iron oxide into CNT/GNF as a high-performance supercapacitor electrode 
260 0 |b Elsevier Ltd  |c 2018 
490 1 |t Materials Chemistry and Physics 
650 0 4 |a Capacitance 
650 0 4 |a CNT 
650 0 4 |a Cyclic voltammetry 
650 0 4 |a Double-layer capacitance 
650 0 4 |a Electrochemical 
650 0 4 |a Electrochemical electrodes 
650 0 4 |a GNF 
650 0 4 |a Good capacity retentions 
650 0 4 |a Hematite 
650 0 4 |a Hydrothermal routes 
650 0 4 |a Iron oxide 
650 0 4 |a Iron oxides 
650 0 4 |a Physicochemical 
650 0 4 |a Physico-chemical characterization 
650 0 4 |a Specific capacitance 
650 0 4 |a Supercapacitor 
650 0 4 |a Supercapacitor electrodes 
650 0 4 |a Supercapacitors 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1016/j.matchemphys.2018.03.044 
856 |z View in Scopus  |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046032777&doi=10.1016%2fj.matchemphys.2018.03.044&partnerID=40&md5=b6a15f72d21f108aa1b9c5fd26ca7bde 
520 3 |a CNT/GNF/Fe2O3 ternary composites were synthesized via a simple hydrothermal route. The electrochemical findings reveal that the incorporation of iron oxide (Fe2O3) into CNT/GNF (174 F g−1) boosts the specific capacitance (Cs) to 307 F g−1 at 10 mV s−1. The system also shows good capacity retention, as it maintained 92% of its original capacitance after 200 cyclic voltammetry cycles. Physicochemical characterization shows that Fe2O3 was anchored randomly on the CNT/GNF sidewalls, forming a network for facile ion diffusion. The improved supercapacitance of CNT/GNF/Fe2O3 can be ascribed to the synergistic effect of the double-layer capacitance of CNT/GNF and the pseudocapacitance of Fe2O3. © 2018 Elsevier B.V. 
700 1 0 |a Krishnan, S.  |e author 
700 1 0 |a Mamat, M.S.  |e author 
700 1 0 |a Ramli, N.I.T.  |e author 
700 1 0 |a Rashid, S.A.  |e author 
700 1 0 |a Sulaiman, Y.  |e author 
773 |t Materials Chemistry and Physics