A dual Ni/Co-MOF-reduced graphene oxide nanocomposite as a high performance supercapacitor electrode material

Rahmanifar, Mohammad S.; Hesari, Hooman; Noori, Abolhassan; Masoomi, Mohammad Yaser; Morsali, Ali; Mousavi, Mir F.

doi:10.1016/j.electacta.2018.04.130

Cited by 302 publications

(118 citation statements)

References 65 publications

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“…The charge storage is due to charge accumulation process across an interface in EDLCs without any electrochemical reactions. On the other hand, in PCs charge storage is due to faradic redox reactions between electrode materials and electrolyte [4]. There are three broad categories of electrode materials used in SCs, which includes carbonaceous materials, metal transition oxides/sulfides/ nitrides and conducting polymers [5,6].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Radhika¹,

Gopalakrishna²,

Chaitra³

et al. 2020

Mater. Res. Express

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Metal-organic framework (MOF) of Ni-MOF, Co-MOF, and Ni/Co-MOF were synthesized by a facile hydrothermal method using Trimesic acid as structure directing linker. The physico-chemical properties of the synthesized MOFs were characterized by P-XRD (powder X-ray diffraction), FT-IR (fourier transform infrared spectroscopy), SEM-EDS (scanning electron microscopy/energydispersive X-ray spectroscopy), HR-TEM (high-resolution transmission tlectron microscope) and BET (Brunner Emmett Teller) surface area techniques. The supercapacitance performance of these MOFs were studied by electroanalytical techniques such as cyclic voltammetry (CV), chronopotentiometry (CP) and electrochemical impedance spectroscopy (EIS). Amongst the MOFs investigated, Ni/Co-MOF exhibited highest specific capacitance (C s ) of 2041 F g −1 at a scan rate of 2 mV s −1 and 980 F g −1 at a current density of 2.5 A g −1 . Ni/Co-MOFs delivered a maximum energy density (ED) of 55.7 W h Kg −1 at a corresponding power density (PD) of 1 K W kg −1 and maximum PD of 9.8 K W kg −1 at an ED of 41.6 W h Kg −1 . An outstanding supercapacitance performance with superior columbic efficiency of 98.4% and capacitive retention of 73% after 5000 cycles marks this material as potential candidate for supercapacitors (SCs). A comparative electrochemical study of these MOFs were made in three electrode system, further electrochemical performance was corelated with their physico-chemical properties.

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Section: Introductionmentioning

confidence: 99%

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Radhika¹,

Gopalakrishna²,

Chaitra³

et al. 2020

Mater. Res. Express

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“…In recent years, many techniques have been developed to prepare graphene-MOF composites, including in situ growth, hydrothermal, direct mixing, Pickering emulsion polymerization, and atomic layer deposition methods. [28][29][30] However, the abovementioned methods still have shortcomings regarding the scalability and controllability of the preparation process for graphene-MOF composites. The strategy of directly mixing MOFs with graphene has been widely applied for obtaining graphene-MOF composites, 31,32 but the preparation process oen suffers from the following problems.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H₂O₂sensing

Yang

Xia

et al. 2019

RSC Adv.

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“…The capacitance storage mechanism of MnO 2 includes adsorption/desorption at the surface and insertion/extraction in the bulk. The contribution of each can be obtained from the power law relationship, the expression of which is shown in equation

true I_{p} = normala v^{b}

…”

Section: Resultsmentioning

confidence: 99%

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

Zhu

Zhang

et al. 2020

ChemistrySelect

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In present work, mulberry-like core-shell structured C@MnO 2 was synthesized as electrodes for Li-ion batteries and pseudocapacitors. Benefiting from the nanoporous shell and conductive carbon core that improve the ion transference and conductivity, the C@MnO 2 delivers excellent electrochemical performance in terms of a stable lithium storage capacity of 553 mAh g À 1 after 250 cycles under 0.5 A g À 1 and a high capacitance up to 274.44F g À 1 under 1 A g À 1 in 6 M KOH and the capacity retention is 90.2% after 5000 cycles. Such electrochemical properties combined with the facile synthesis route make C@MnO 2 promising electrode materials for energy storage.[a] Dr.

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A dual Ni/Co-MOF-reduced graphene oxide nanocomposite as a high performance supercapacitor electrode material

Cited by 302 publications

References 65 publications

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H₂O₂sensing

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

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A dual Ni/Co-MOF-reduced graphene oxide nanocomposite as a high performance supercapacitor electrode material

Cited by 302 publications

References 65 publications

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Electrochemical studies on Ni, Co & Ni/Co-MOFs for high-performance hybrid supercapacitors

Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H2O2sensing

Mulberry‐Like Core‐Shell Structured C@MnO2 as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

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Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H₂O₂sensing

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors