Synthesis of hierarchical multilayer N-doped Mo2C@MoO3 nanostructure for high-performance supercapacitor application

Çevik, Emre; Günday, Şeyda Tuğba; Iqbal, Arfa; Akhtar, Sultan; Bozkurt, Ayhan

doi:10.1016/j.est.2021.103824

Cited by 39 publications

(11 citation statements)

References 52 publications

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“…This porous and hydrophilic morphology of the electrode contributes to the diffusion and absorption of ions. [ 45 ] The EDLC of the Mo‐LIG supercapacitor is enhanced due to this effect. We also studied the energy and power densities of a Mo‐LIG supercapacitor.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Guo

Qiao

Yan

et al. 2023

Adv Funct Materials

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Hybrid supercapacitors use electric double‐layer capacitance and Faradaic pseudocapacitance as energy storage mechanisms. This type of supercapacitor is becoming a prime candidate for next‐generation energy storage devices, with advantages in terms of energy density, specific capacitance, and life cycle. However, reducing the electrode area and increasing the specific capacitance of hybrid supercapacitors remain challenging. In this study, a MoCl5 Precursor‐assisted Ultrafast Laser Carbonization (MPAULC) method to fabricate symmetric hybrid supercapacitors with improved capacitance and reduced size is proposed. The method uses an ultrafast laser to induce the formation of carbon/MoO3 composite with the assistance of the MoCl5 precursor. This ultrafast laser carbonization method exhibited high processing precision. The role of the precursor in laser processing is studied using time‐resolved imaging and temperature calculations. The specific area capacitance of the C/MoO3 hybrid supercapacitor is 11.85 mF cm−2, 9.2 times higher than that of the laser‐induced carbon supercapacitor without precursor. The MPAULC method provides a reliable pathway for fabricating miniaturized hybrid supercapacitors with carbon/metal oxide composite electrodes on polymer substrates.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Guo

Qiao

Yan

et al. 2023

Adv Funct Materials

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“…NiCo 2 S 4 , its composite with Co 9 S 8 , and upon forming an asymmetric capacitor with active carbon (AC) as another electrode gave energy densities of 25.5, 33.5, and 35.4 W h kg –1 . − Various studies using NiCo 2 O 4 as a nanosheet have been conducted in order to achieve higher energy density and power density. NiCo 2 O 4 along with AC, rGO, and NiCo 2 O 4 nanosheets delivered energy densities of 14.7, 23.3, 23.9, and 15.42 W h kg –1 , respectively. ,− Other metals like Ti 3 C 2 with MXene, ZnCo 2 O 4 , and NiCo 2 Se 4 delivered energy densities of 15.4, 23.8, and 16.8 W h kg –1 . − Direct usage of the CoNiMOF and monometallic MOF coated on a Ni foam and CC were investigated to analyze the energy density obtained. ,− Upon using the Mo-based electrode and ZIF 8-based electrode, they delivered energy densities of 37.5 and 21.1 W h kg –1 . , A tabular comparison of specific capacitance obtained for C2N1MZ@CC with that of reported literature is given in Table S2.…”

Section: Resultsmentioning

confidence: 99%

“…41−44 Various studies using NiCo 2 O 4 as a nanosheet have been conducted in order to achieve higher energy density and power density. 55,56 A tabular comparison of specific capacitance obtained for C2N1MZ@CC with that of reported literature is given in Table S2.…”

Section: Physical Characterization Of the Mof Nanocompositementioning

confidence: 98%

Efficient Fabrication of Nanostructures Using a Combination of Bimetallic and Imidazolate Frameworks for Enhanced Supercapacitors and Electrochemical Sensing Applications

Iyer

Ilangovan

2023

ACS Appl. Energy Mater.

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A nanomatrix containing molybdate (MoO3) anchored on a zeolitic imidazolate framework (ZIF-8) supporting CoNi metal oxide framework (MOF) has been prepared. The synthesized nanocomposite possesses a high surface area of 333.66 m2 g–1, and it contains a mixture of meso- and macroporous structures. When implicating the nanostructure as an electrode material, the highest specific capacitance of 1260 F g–1 is obtained for the appropriate ratio of the MOF. The superior nanocomposite is deposited on carbon cloth and further tested as an electrode in a coin-cell-based (C2N1MZ||NGT) hybrid supercapacitor device, which exhibits a capacitance of 363 F g–1. The nanocomposite is further used as a transducer in electrochemical sensing of theophylline (TP). Square-wave voltammetry suggested that the nanomatrix exhibited creditable electrocatalytic activity and delivered a stable redox peak for different concentrations of TP ranging from 1 μM to 5 M. The limit of detection of the electrochemical sensor is calculated to be 75.4 nM, which suggests the practicality of the sensor. Therefore, the obtained results indicate that the prepared nanocomposite is suitable for energy and sensing applications.

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“…Electrochemical energy storage systems, such as rechargeable battery technologies, are essential for substantial advancements in industrial fields, including electric vehicles, portable electronic devices, and renewable energy . Nonaqueous lithium-ion batteries (LIBs) have prevailed in portable devices due to their high energy density, long cycle life, and flexible and lightweight design and are now being explored as a feasible option for electric/hybrid vehicles and grid-scale energy storage systems .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zn Intercalated Zn–V@Mo–V Nanorods-based Cathodes for Prolonged Cyclic Stability of Rechargeable Aqueous Zinc-Ion Batteries

Çevik

Qahtan

Asiri

et al. 2023

ACS Appl. Nano Mater.

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Stationary rechargeable Zn-ion batteries (ZIBs) are attractive energy storages systems because of their natural abundance, safety, and low cost. High capacity, stable, and robust cathode materials play an important role in aqueous electrolyte systems in ZIBs, where metal oxide cathode dissolution is a problem that needs to be addressed. Herewith, we report an intercalation-type Zn-doped Zn−V@Mo−V (ZMV) cathode material affording prolonged cycle stability and high storage capacity. Porous, superfine nanostructures offer Zn 2+ ion diffusion pathways, alleviating intercalation redox reactions without dissolution. Zn doping restructures the cathode expansion-like, resulting in increased electrical conductivity and faster electrochemical ion diffusion. A reversible and uniform Zn electroplating at the anode surface interface indicates improved cell reversibility. The ZMV cathode scales up to assemble a pouch cell of Zn//ZnSO 4 //ZMV, where the cathode enhances the rate performance and decreases the selfdischarge rate. High efficiency and long cycle life can be endowed to the cathode material to construct a stable Zn-ion battery, accelerating the commercialization of the whole system.

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Synthesis of hierarchical multilayer N-doped Mo2C@MoO3 nanostructure for high-performance supercapacitor application

Cited by 39 publications

References 52 publications

Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Efficient Fabrication of Nanostructures Using a Combination of Bimetallic and Imidazolate Frameworks for Enhanced Supercapacitors and Electrochemical Sensing Applications

Synthesis of Zn Intercalated Zn–V@Mo–V Nanorods-based Cathodes for Prolonged Cyclic Stability of Rechargeable Aqueous Zinc-Ion Batteries

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Synthesis of hierarchical multilayer N-doped Mo2C@MoO3 nanostructure for high-performance supercapacitor application

Cited by 39 publications

References 52 publications

Fabrication of Hybrid Supercapacitor by MoCl5 Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Fabrication of Hybrid Supercapacitor by MoCl5 Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Efficient Fabrication of Nanostructures Using a Combination of Bimetallic and Imidazolate Frameworks for Enhanced Supercapacitors and Electrochemical Sensing Applications

Synthesis of Zn Intercalated Zn–V@Mo–V Nanorods-based Cathodes for Prolonged Cyclic Stability of Rechargeable Aqueous Zinc-Ion Batteries

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Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Fabrication of Hybrid Supercapacitor by MoCl₅ Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance