Synthesis of freestanding 2D CuO nanosheets at room temperature through a simple surfactant free co-precipitation process and its application as electrode material in supercapacitors

Ghosh, Arnab; Miah, Milon; Bera, Arun; Saha, Shyamal Kumar; Ghosh, Barnali

doi:10.1016/j.jallcom.2020.158549

Cited by 48 publications

(15 citation statements)

References 57 publications

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“…For SiCuOC, peaks at 810, 1050, and 1610 cm –1 were assigned to the Si–C, Si–O–Si, and CC, respectively, revealing the ceramization of the precursors . After the sensitization, small peaks at 586, 525, and 443 cm –1 were observed, corresponding to the Cu–O vibrational modes, − indicating the formation of CuO-modified SiCuOC composites. The doped Ag exhibited no effect on the chemical structures according to the spectrum.…”

Section: Resultsmentioning

confidence: 99%

Zero-Expanded Gas Sensing of Chiral-Rotating Chemiresistive SiCuOC Structures

Zhou

Mei

et al. 2022

Chem. Mater.

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Chiral-rotating gas sensing structures composed of chemiresistive-sensitized SiCuOC have been presented to provide a facile method for reducing the thermal expansion of gas sensors working at high temperatures. The structures can disperse thermal stress by heat-induced torsion of their units while maintaining the dimensional stability of the integral construction. Vat photopolymerization constructed Cu-doped SiOC substrates with a high resolution, while Ag-doped CuO nanoclusters further modified them. Taking advantage of the synergistic sensitization effect of the substrate and the surface sensing layer, the structure exhibited a high response/recovery speed (24/32 s) and a response value of 54.45% to 100 ppm acetone; 97.19% of its initial response was maintained after a long-term detection. The thermal expansion coefficient of the sensing structure reached 1.04 × 10 −6 /K at the working temperature, revealing a near-zero expansion. Compressive strength and Young's modulus of the structures were 31.93 MPa and 3.38 GPa, respectively. Meanwhile, the structures realized regular gas detection under pressure (85.02 kPa) and thermal (325 °C) loading, as their high deformation resistance protected the integrity and connection of the surface sensing layer. Thus, the work proved the dimensional stabilization effect of chemiresistive sensing structures with chiral-rotating design, realizing stable gas detection in complex loading environments.

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Section: Resultsmentioning

confidence: 99%

Zero-Expanded Gas Sensing of Chiral-Rotating Chemiresistive SiCuOC Structures

Zhou

Mei

et al. 2022

Chem. Mater.

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“…XRD had diffraction peaks at 30°to 70°that were well matched to the crystal planes of monoclinic CuO (JCPDS 45-0937). 43,44 The main constituents of the CC and NCC catalysts are oxides of base metals including CuO, SnO 2 , CaO, FeO, and SiO 2 . A peak around 25°typically represents a graphite-like carbon structure, while graphite-like carbon, with a higher intensity in CC, is represented by the peak around 43.5°( Fig.…”

Section: Characterization Of Fabricated Catalystsmentioning

confidence: 99%

Heterogeneous catalytic activation of peroxydisulfate toward degradation of pharmaceuticals diclofenac and ibuprofen using scrap printed circuit board

Aziz

2023

RSC Adv.

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“…Among non-toxic transition metal oxides, CuO has been considered as SC electrode material due to its cost-effectiveness and good theoretical capacitance ($1800 F g À1 ). [215][216][217][218][219][220] However, the application of this metal oxide in SCs is restricted by its inferior electrical conductivity and CS. Over the past few years, several approaches have been adopted to overcome these problems.…”

Section: Single Metal Oxidementioning

confidence: 99%