Lithium titanate/pyrenecarboxylic acid decorated carbon nanotubes hybrid - Alginate gel supercapacitor

Ojha, Manoranjan; Houx, James Le; Mukkabla, Radha; Kramer, Denis; Wills, Richard; Deepa, Melepurath

doi:10.1016/j.electacta.2019.03.211

Cited by 22 publications

(15 citation statements)

References 38 publications

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“…Even at the high power density of 0.361 W cm −3 (3750 W kg −1 ), the SSIC can provide a specific energy of 3.41 mW h cm −3 (35.4 W h kg −1 ), which are superior to those of recently reported flexible and stretchable supercapacitors. 31,49,54–57…”

Section: Resultsmentioning

confidence: 99%

“…energy of 3.41 mW h cm −3 (35.4 W h kg −1 ), which are superior to those of recently reported flexible and stretchable supercapacitors. 31,49,[54][55][56][57] To explore the reasons for the outstanding performance under stretch deformation for as-assembled device, the crosssectional FESEM analysis and the peel test were adopted. The Fig.…”

Section: Nanoscale Papermentioning

confidence: 99%

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Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution

Chen

Ding

et al. 2022

Nanoscale

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Section: Resultsmentioning

confidence: 99%

Section: Nanoscale Papermentioning

confidence: 99%

Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution

Chen

Ding

et al. 2022

Nanoscale

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“…Lithium titanate (LTO) has been extensively applied as an anode in batteries [17], dye-sensitized solar cells [18], and super capacitors [19]. The small size of lithium cations makes it easier to incorporate into the lattice of TiO 2 , either by replacing the O atoms or by occupying the interstitial sites.…”

Section: Introductionmentioning

confidence: 99%

ZnO Surface Doping to Enhance the Photocatalytic Activity of Lithium Titanate/TiO2 for Methylene Blue Photodegradation under Visible Light Irradiation

et al. 2020

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Wastewater contaminated with dyes produced by textile industries is a major problem due to inadequate treatment prior to release into the environment. In this paper, the ability of ZnO to enhance the interfacial photocatalytic activity of lithium titanate/TiO2 (LTO/TiO2) for the photodegradation of methylene blue (MB) under visible light irradiation (4.38 mW/cm2) was assessed. The ZnO-doped lithium titanate/TiO2 (ZnO/LTO/TiO2) was synthesized using a combination of hydrothermal and wetness impregnation methods. The high-resolution transmission electron microscope (HRTEM) and X-ray Diffraction (XRD) analyses indicate that the ZnO/LTO/TiO2 contain several phases (ZnO, LTO, and TiO2). The adsorption capacity of LTO/TiO2 (70%) was determined to be higher compared to its photocatalytic activity (25%), which is attributed to the strong interaction between the Li and surface oxygen atoms with the MB dye molecules. The introduction of ZnO improved the photocatalytic ability of LTO/TiO2 by 45% and extended the life span of ZnO/LTO/TiO2. The ZnO/LTO/TiO2 can be reused without a significant loss up to four cycles, whereas LTO/TiO2 had reduced adsorption after the second cycle by 30%. The ZnO increased the surface defects and restrained the photo-induced electrons (e−) from recombining with the photo-induced holes (h+). Scavenging tests indicated that the hydroxyl radicals played a major role in the photodegradation of MB, which is followed by electrons and holes.

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“…Significant advances have been achieved in applications of functionally decorated CNT for photovoltaic devices (Mathew et al, 2011;Tai et al, 2014). It has previously been shown that carbon nanotubes can be decorated with oxides (Ojha et al, 2019), polypyrrole (Su and Zhitomirsky, 2015) and activated carbon (Shi et al, 2014) for energy storage applications in supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Functionally Decorated Carbon Nanotube Networks for Energy Storage in Supercapacitors

et al. 2020

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A novel approach has been developed for the fabrication of Fe 3 O 4 decorated multiwalled carbon nanotubes (MWCNT) for energy storage in negative electrodes of electrochemical supercapacitors. Synthesis of Fe 3 O 4 was performed in the presence of MWCNT, dispersed using various cationic and anionic polyaromatic dispersants. The comparison of experimental results obtained using different dispersants provided an insight into the influence of the chemical structure of the dispersant molecules on the microstructure of the Fe 3 O 4-MWCNT materials. It was found that positively charged groups and chelating catechol ligands of the dispersants facilitated the formation of Fe 3 O 4 decorated MWCNT with low agglomeration. The Fe 3 O 4-MWCNT materials, prepared using different dispersants were used for the fabrication of electrodes with mass loading of 40 mg cm −2. The highest capacitance was obtained in 0.5 M Na 2 SO 4 electrolyte for Fe 3 O 4 decorated MWCNT prepared using cationic celestine blue dye as a dispersant. Improved cyclic voltammetry profile was obtained using FeOOH as an additive. Asymmetric devices were fabricated and tested based on the Fe 3 O 4 decorated MWCNT negative electrodes and MnO 2-MWCNT positive electrodes.

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Lithium titanate/pyrenecarboxylic acid decorated carbon nanotubes hybrid - Alginate gel supercapacitor

Cited by 22 publications

References 38 publications

Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution

Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution

ZnO Surface Doping to Enhance the Photocatalytic Activity of Lithium Titanate/TiO2 for Methylene Blue Photodegradation under Visible Light Irradiation

Functionally Decorated Carbon Nanotube Networks for Energy Storage in Supercapacitors

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Lithium titanate/pyrenecarboxylic acid decorated carbon nanotubes hybrid - Alginate gel supercapacitor

Cited by 22 publications

References 38 publications

Stretchable sodium-ion capacitors based on coaxial CNT supported Na2Ti3O7 with high capacitance contribution

Stretchable sodium-ion capacitors based on coaxial CNT supported Na2Ti3O7 with high capacitance contribution

ZnO Surface Doping to Enhance the Photocatalytic Activity of Lithium Titanate/TiO2 for Methylene Blue Photodegradation under Visible Light Irradiation

Functionally Decorated Carbon Nanotube Networks for Energy Storage in Supercapacitors

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Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution

Stretchable sodium-ion capacitors based on coaxial CNT supported Na₂Ti₃O₇ with high capacitance contribution