Hydrothermal synthesis of novel Mn1/3Ni1/3Co1/3MoO4 on reduced graphene oxide with a high electrochemical performance for supercapacitors

Jayasubramaniyan, S.; Balasundari, S.; Naresh, N.; Rayjada, P. A.; Ghosh, Sutapa; Satyanarayana, N.; Muralidharan, P.

doi:10.1016/j.jallcom.2018.11.187

Cited by 17 publications

(5 citation statements)

References 52 publications

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“…The diffraction peaks at 2θ of 18.9, 31.2, 36.9, 38.4, 44.8, 55.6, 59.1, 65.1 are due to the characteristics planes of (111), (220), (311), (222), (400), (422), (511), and (440), respectively, and matches with the JCPDS 00-001-1152 confirmed the presence of Co 3 O 4 . , Further, the XRD peaks observed at the 2θ values of 35.4, 38.7, 48.7, 58.3, 61.5, and 68.1 are due to the characteristic crystal planes of (−111), (111), (−202), (202), (−113), and (220), respectively, and match with JCPDS 00-005-0661, confirming the presence of CuO . Thus, the coexistence of the XRD pattern of both oxides has confirmed the formation of the composite nature of CuO/Co 3 O 4 . The formation of the CuO/Co 3 O 4 composite instead of CuCo 2 O 4 could be ascribed to the utilization of diethylamine (DEA) as the precipitant before the microwave hydrothermal reaction.…”

Section: Resultssupporting

confidence: 73%

“…Their electrochemical process follows diffusion-controlled kinetics, resulting in high specific capacity and energy density than EDLCs and PCs. As a result, considerable research efforts have been made to develop high-performance and efficient battery-type electrode materials. − To this end, TMOs (for example, Mn 2 O 3 , Fe 2 O 3 , NiO, Co 3 O 4 , and CuO) receive much attention; particularly, Co 3 O 4 and CuO have been extensively investigated since they possess high redox properties, enhanced electronic conductivity, and high theoretical specific capacitance. , In addition, the electrochemical performance and redox properties of these materials can be further improved through the coupling or hybridizing (synergistic interactions) of individual metal oxides. For example, H. Kim et al achieved a higher specific capacitance value of 806.25 F g –1 for CuO/Co 3 O 4 composite than Co 3 O 4 .…”

Section: Introductionmentioning

confidence: 99%

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Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Balasundari¹,

Jayasubramaniyan

Thangavel

et al. 2023

ACS Appl. Eng. Mater.

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Earth-abundant transition metal oxides (TMOs) are promising electroactive materials for electrochemical energy conversion and storage applications due to their high theoretical specific capacity, enhanced electrocatalytic activity, and mechanical durability. However, the limited cycle stability and low conductivity of TMOs remain challenging for practical application. Herein, we developed a TMO-based nanocomposite of CuO/Co 3 O 4 via precipitation followed by the microwave hydrothermal method and used as a bifunctional electroactive material for supercapacitor and oxygen evolution reaction (OER) applications. The CuO/Co 3 O 4 nanocomposite electrode exhibits a high specific capacity of 586 C g −1 and an excellent cyclic reversibility of 113.6% under a high current density of 20 A g −1 after 5000 cycles. Apart from the high redox properties, the strong synergistic interaction between CuO and Co 3 O 4 significantly enhances the electrocatalytic property of the material. On continuous electrolysis in 1 M KOH solution, the OER electrode fabricated with CuO/Co 3 O 4 nanocomposite demonstrated a moderate overpotential (η O2 ) of 270 mV at j = 10 mA cm −2 , a slight Tafel slope of 54 mV dec −1 , and significant OER stability. These results highlight the fabrication of high-performance TMOs-based CuO/Co 3 O 4 nanocomposite and their utilization in electrochemical energy storage and conversion devices for attaining maximum efficiency.

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Section: Resultssupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Balasundari¹,

Jayasubramaniyan

Thangavel

et al. 2023

ACS Appl. Eng. Mater.

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“…In Figure D, Mo 3d spectrum consisted of Mo 3d 5/2 (231.8 eV) and Mo 3d 3/2 (234.9 eV). And the energy separation between the two peaks was 3.1 eV, which was attributed to Mo 6+ . From Figure E, it was found that a metal‐oxygen bond and crystal water existed, which were related to the peaks at 530.3 and 532.2 eV, respectively .…”

Section: Resultsmentioning

confidence: 91%

“…And the energy separation between the two peaks was 3.1 eV, which was attributed to Mo 6+ . 47,51 From Figure 6E, it was found that a F I G U R E 5 N 2 adsorption-desorption isotherms (A) and pore size distributions (B) of Ni-Co-Mo-S/NF metal-oxygen bond and crystal water existed, which were related to the peaks at 530.3 and 532.2 eV, respectively. 52 In Figure 6F, the peaks of S 2p 1/2 (164.3 eV) and S 2p 3/2 (162.8 eV) suggested the presence of metal sulfides sufficiently.…”

Section: Characterization Studiesmentioning

confidence: 99%

Synthesis of porous flower‐like Ni‐Co‐Mo‐S nanostructures on Ni foam for battery‐supercapacitor hybrid devices

et al. 2020

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The synergistic effects of multiple components and unique nanostructures were contributed to prepare the high‐performance battery‐type electrode materials. In this work, Mo element was introduced to form the ternary transition metal oxides/hydroxides of Ni‐Co to improve conductivity, and then charge transfer was accelerated to enhance the capacity storage. After sulfidation, the electrical conductivity was further improved, and a porous flower‐like nanostructure was formed. Except for that, the composites of transition metal oxides/hydroxides and sulfides were formed via sulfidation. With the help of the synergistic effects of multiple components and a porous flower‐like nanostructure, more Faradic redox reactions occurred. Therefore, the as‐prepared porous flower‐like Ni‐Co‐Mo‐S nanostructures on Ni foam exhibited an excellent areal capacitance of 7.22 C·cm−2 at 5 mA·cm−2 and long‐cycle stability (96.9% retention after 5000 cycles). Furthermore, a coin‐type battery‐supercapacitor hybrid (BSH) device was assembled, which achieved 54.54 Wh·kg−1 at 540 W·kg−1 and displayed 74.8% capacitance retention after 3500 cycles. All mentioned above demonstrated that ternary transition metal oxides/hydroxides precursors via sulfidation can form special structures and the composites of transition metal oxides/hydroxides and sulfides to prepare high‐performance battery‐type electrodes for energy storage.

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“…(A) The E D and P D values of a few known metal oxide-based supercapacitor devices are displayed alongside the Ragone plot of the NiO/MnCo 2 O 4 ||N-rGO ASSHSC device at various applied current densities − ; (B) cyclic capacitance retention of NiO/MnCo 2 O 4 ||N-rGO ASSHSC device.…”

Section: Resultsmentioning

confidence: 99%

Hierarchical and Nanocrystallite-Assembled Ultraporous NiO/MnCo₂O₄ for All Solid-State Hybrid Supercapacitors with Robust Energy Efficiency and Extended Operational Durability

Mawari,

Srivastav,

Meher

2024

Langmuir

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To address the growing demand of highly Ragone efficient electrochemical energy storage devices, we have innovated a synthetic design strategy and employed a tartrate-mediated kinetic precipitation process to fabricate an ultraporous ribbon-like hierarchical microstructure of Ni-, Mn-, and Co-based ternary oxide, i.e., NiO/MnCo 2 O 4 , and employed it as a battery-type positive electrode material to assemble an ASSHSC (all-solid-state hybrid supercapacitor) device with nitrogen-doped reduced graphene oxide (N-rGO) as the positive electrode material. NiO/MnCo 2 O 4 exhibits distinct crystallographic phase, nearperfect elemental stoichiometry, evident bulk porosity, and rich nanocrystallite assembly in the randomly arranged microstructure of near-uniform size and shape. Thorough electrochemical studies corroborate that the battery-type NiO/MnCo 2 O 4 exhibits remarkable electrochemical reversibility during charge transfer, high efficiency in supercapacitive charge storage, low charge transfer, series and diffusion resistance. The NiO/MnCo 2 O 4 ||N-rGO ASSHSC device assembled with the PVA-KOH film as the separator electrolyte offers rich charge storage physiognomies, which accentuates excellent electromicrostructural compatibility between the electrode materials in the device. The NiO/MnCo 2 O 4 ||N-rGO ASSHSC device shows low charge transfer and diffusion resistance, and it also delivers high mass and areal specific capacitance/ capacity, energy and power density, Ragone efficiency (∼131 Wh kg −1 at ∼2134 W kg −1 and ∼31 Wh kg −1 at ∼5005 W kg −1 ), and extended operational durability (98.2% specific capacitance retention after 12,000 successive GCD cycles) under high-rate working conditions. The present optimized approach to design highly efficient multiple transition-metal-based oxides as battery-type electrode materials and fabricate rich Ragone-efficient ASSHSC devices can be widely adopted in the future development of highperformance hybrid supercapacitors, which may be largely integrated in various pioneering technologies.

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Hydrothermal synthesis of novel Mn1/3Ni1/3Co1/3MoO4 on reduced graphene oxide with a high electrochemical performance for supercapacitors

Cited by 17 publications

References 52 publications

Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Synthesis of porous flower‐like Ni‐Co‐Mo‐S nanostructures on Ni foam for battery‐supercapacitor hybrid devices

Hierarchical and Nanocrystallite-Assembled Ultraporous NiO/MnCo₂O₄ for All Solid-State Hybrid Supercapacitors with Robust Energy Efficiency and Extended Operational Durability

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Hydrothermal synthesis of novel Mn1/3Ni1/3Co1/3MoO4 on reduced graphene oxide with a high electrochemical performance for supercapacitors

Cited by 17 publications

References 52 publications

Heterostructure CuO/Co3O4 Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Heterostructure CuO/Co3O4 Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Synthesis of porous flower‐like Ni‐Co‐Mo‐S nanostructures on Ni foam for battery‐supercapacitor hybrid devices

Hierarchical and Nanocrystallite-Assembled Ultraporous NiO/MnCo2O4 for All Solid-State Hybrid Supercapacitors with Robust Energy Efficiency and Extended Operational Durability

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Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Heterostructure CuO/Co₃O₄ Nanocomposite: An Efficient Electrode for Supercapacitor and Electrocatalyst for Oxygen Evolution Reaction Applications

Hierarchical and Nanocrystallite-Assembled Ultraporous NiO/MnCo₂O₄ for All Solid-State Hybrid Supercapacitors with Robust Energy Efficiency and Extended Operational Durability