Copper oxide/mesoporous carbon nanocomposite synthesis, morphology and electrochemical properties for gel polymer-based asymmetric supercapacitors

Saravanakumar, B.; Radhakrishnan, Chandran; Ramasamy, Murugan; Kaliaperumal, Rajendran; Britten, Allen J.; Mkandawire, Martin

doi:10.1016/j.jelechem.2019.113504

Cited by 37 publications

(7 citation statements)

References 46 publications

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“…The slightly large interlayer spacing of CuO and CuO-a provides easy diffusion of the electrolyte. 52 The crystallinity of the prepared CuO NCs that was previously discussed in the XRD analysis can also be confirmed by the selected area electron diffraction (SAED) pattern of the TEM analysis (as shown in Fig. 9i-l).…”

Section: Materials Advances Papersupporting

confidence: 64%

Cationic and oxygen defect modulation for tailoring the bandgap and room temperature ferromagnetism of CuO via multiple d-block cations

Islam,

Chowdhury,

Hoque

et al. 2024

Mater. Adv.

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Section: Materials Advances Papersupporting

confidence: 64%

Cationic and oxygen defect modulation for tailoring the bandgap and room temperature ferromagnetism of CuO via multiple d-block cations

Islam,

Chowdhury,

Hoque

et al. 2024

Mater. Adv.

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“…As shown in Figure 9d, a Ragone plot of the SHS device provided 36.90 Wh/kg at 8437.50 W/kg, which were compared favorably with the literature reports: H-CuO//AC (19.7 Wh/kg, 700 W/kg), 40 CuO@Ni-MOF//PAC-18 (18 Wh/kg, 750 W/kg), 41 CuO@NiO@MWCNT//AC (32.21 Wh/kg, 3923 W/kg), 42 CuO@rGO@SP//rGO@SP (31.2 Wh/kg, 1699 W/kg), 43 Ni-MOF/rGO-300//AC (17.13 Wh/ kg, 750 W/kg), 44 and CuO/MPC//AC (26.6 Wh/kg, 438 W/ kg). 45 Moreover, the single red LED's operating voltage is 1.6− 2.2 V. We have assembled two devices in series connection and illuminated the single LEDs for 5 and 10 min, as shown in Figure 9e,f.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Electrochemical Performance of CuO Capsules@CDs Composites for Solid-State Hybrid Supercapacitor

et al. 2023

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Capsule-like CuO/CDs (CuO@CDs) with a surface area of 33.12 m2 g–1 were synthesized by the hydrothermal treatment, compared to 19.02 m2 g–1 for pristine CuO. An anode was then fabricated from capsule-like CuO@CDs to form a hybrid solid-state supercapacitor (HSSC) with the activated carbon (AC) cathode and PVA/1M KOH as an electrolyte. Three electrode system offered 1208.88 F/g (specific capacitance at 2 A/g current density) and unveiled a remarkable life cycle (retention) and Coulombic efficiency (CF): 93 and 98% after 5000 charge–discharge cycles at 10 A/g. In terms of performance, the HSSC delivered 1.5 V and 102.60 F/g (50.74 C/g) at 2 A/g, 8437.50 W/kg (power density), and 36.90 Wh/kg (energy density). The HSSC still retained 92% of cyclic stability and 83% of CF after 10,000 cycles.

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“…Copper oxides such as CuO- and Cu 2 O-based SCs received very significant with the advantage of plentiful with reduced cost, nontoxicity, and simple and versatile synthesis of various micro/nanostructures. − However, their load storage efficiency is hampered by its limited electrical conductivity and low cycling ability. For instance, in a KOH electrolyte, Zhang and co-workers demonstrated the preparation of flower-like CuO nanostructures that yielded a C sp of 133.6 F g –1 , while Li and his team took efforts on growing CuO nanostructures onto Cu foam surface directly and found a C sp of 212 F g –1 in the same electrolyte.…”

Section: Metal Oxide-based Supercapacitorsmentioning

confidence: 99%

Research Progress on Porous Carbon Supported Metal/Metal Oxide Nanomaterials for Supercapacitor Electrode Applications

Veerakumar

Sangili

Manavalan

et al. 2020

Ind. Eng. Chem. Res.

171

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Recently, transition metal/metal oxides (TMMOs) decorated on porous carbons (PCs) have been intensively focused on designing rational electrode materials for the promising future specific category of electrochemical energy storage and conversion technologies. In particular, TMMO incorporation with PC structures has become very attractive in the area of supercapacitors (SCs) mainly caused by their large accessible surface areas (SSA), together with the suitable pore size distributions (PSD), high electrical conductivity, and rapid redox reactions reversibly on the surface. The transportation of ions, as well as electrons in the bulk of electrodes, is fast as a result of optimal contact between electrodes and electrolytes at the electrode–electrolyte interface, thereby generating high specific capacities (C sp) of these PCs with TMMOs. We report a survey regarding recent advances in the fabrication and synthesis of TMMOs decorated on PCs with some physical characteristics and their applications for electrochemical capacitors. Some future trends and prospects for further development of the subject nanocomposites in application to next-generation supercapacitors are discussed.

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Copper oxide/mesoporous carbon nanocomposite synthesis, morphology and electrochemical properties for gel polymer-based asymmetric supercapacitors

Cited by 37 publications

References 46 publications

Cationic and oxygen defect modulation for tailoring the bandgap and room temperature ferromagnetism of CuO via multiple d-block cations

Cationic and oxygen defect modulation for tailoring the bandgap and room temperature ferromagnetism of CuO via multiple d-block cations

Enhanced Electrochemical Performance of CuO Capsules@CDs Composites for Solid-State Hybrid Supercapacitor

Research Progress on Porous Carbon Supported Metal/Metal Oxide Nanomaterials for Supercapacitor Electrode Applications

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