Mesoporous carbon/titanium dioxide composite as an electrode for symmetric/asymmetric solid‐state supercapacitors

Arya, Anil; Iqbal, Muzahir; Tanwar, Shweta; Sharma, Annu; Kumar, Vijay

doi:10.1016/j.mseb.2022.115972

Cited by 18 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under these data parameters, the energy density provided is up to 46.84 W h kg −1 . Compared with previous studies, the performance of the device reaches a better state [42][43][44][45][46][47][48][49][50][51][52][53][54]. Even if the current density is increased by 6 times, the energy density can still be maintained at 27.63 W h kg −1 at a power density of 5100 W kg −1 .…”

Section: Resultsmentioning

confidence: 67%

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Wang,

Lu,

Wang

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

In the supercapacitor field, negative electrodes are mainly concentrated in carbon-based materials, such as activated carbon, carbon nanotubes, graphene, and so forth. However, materials based on metal-organic frameworks (MOFs) as negative active components are relatively rare. Herein, a series of composite materials based on graphene oxide (GO) and vanadate-based Fe-organic frameworks have been prepared by hydrothermal method namely GO/Fe-VO4-BIPY. The deposition amount of polyoxometalate-based metal-organic frameworks (POMOFs) on the surface of graphene is adjusted by changing the content of POMOFs. Through the deposition, it can effectively reduce the accumulation between graphene, and increase the dispersion of POMOFs. As a result, the charge storage performance of the as-obtained materials is greatly improved. Among these materials, GO/Fe-VO4-BIPY-1 has the most prominent performance due to its excellent synergistic effect between the Faraday chemical reaction and electric double-layer capacitance. In comparison with pristine Fe-VO4-BIPY, GO/Fe-VO4-BIPY-1 delivers more excellent surface area and therefore exhibits abundant redox reaction sites, achieving better electrochemical performance the best. After assembly with the positive Ni(OH)2 electrode, the maximum energy density of 46.84 W h kg-1 at a power density of 850 W kg-1 is achieved.

show abstract

Section: Resultsmentioning

confidence: 67%

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Wang,

Lu,

Wang

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

show abstract

“…Furthermore, mesoporous carbon-titanium dioxide composite electrodes have demonstrated a specific capacitance of 280 F g −1 for composite electrodes with 95% capacitance retention after 1000 cycles, as compared to 150 F g −1 for pristine electrodes due to faster charge dynamics. 16 Therefore, titanium oxide has been investigated as a promising electrode material due to its high theoretical capacitance, excellent electrical conductivity, low cost, and environmental friendliness. The use of TiO 2 in the application of supercapacitors is enhanced because of different morphologies.…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical capacitance of titanium oxide nanoparticles using low-energy nitrogen ion irradiation

Patro,

Rajbhar,

Radhakrishnan

et al. 2024

New J. Chem.

View full text Add to dashboard Cite

show abstract

WS₂/Mesoporous Carbon Nanostructures as a Bifunctional Electrode for All Quasi‐Solid‐State Supercapacitor and Oxygen Evolution Reaction

Iqbal,

Saykar,

Singh

et al. 2024

Adv Materials Technologies

View full text Add to dashboard Cite

Abstract2D transition‐metal sulfides have developed as favorable electroactive materials for electrochemical energy storage and conversion applications. In this work, WS2/mesoporous carbon (MC) is developed by a one‐step hydrothermal technique for supercapacitor and oxygen evaluation reaction (OER) application. However, the metal sulfides have poor rate and cyclic performance due to the aggregations between two layers of structures restricting their performance. The interaction between WS2 nanosheets and MC produces a synergistic effect, resulting in a decent electrochemical energy storage and conversion application. The synthesized materials used to prepare quasi‐solid‐state symmetric (QSSS) and asymmetric (QSSA) supercapacitor configuration enable the highest specific capacitance (CSP) of 305.45 F g−1 and 204.21 F g−1@ 10 mV s−1, respectively. Moreover, the specific energy and power density of QSSS and QSSA devices are 31.1 Wh kg−1 @824.95 W kg−1 and 24.74 Wh kg−1 @549.84 W kg−1, respectively. Additionally, the multifunctionality of the synthesized binary nanocomposite is also tested for OER. The composite shows a desirable over potential of 307 mV in 6 m KOH electrolyte, with a 69 mV dec−1 Tafel slope. The dual role of WS2/MC for energy storage and oxygen evaluation reaction conversion reveals the potential of metal sulfides.

show abstract

Mesoporous carbon/titanium dioxide composite as an electrode for symmetric/asymmetric solid‐state supercapacitors

Cited by 18 publications

References 49 publications

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Enhanced electrochemical capacitance of titanium oxide nanoparticles using low-energy nitrogen ion irradiation

WS₂/Mesoporous Carbon Nanostructures as a Bifunctional Electrode for All Quasi‐Solid‐State Supercapacitor and Oxygen Evolution Reaction

Contact Info

Product

Resources

About

Mesoporous carbon/titanium dioxide composite as an electrode for symmetric/asymmetric solid‐state supercapacitors

Cited by 18 publications

References 49 publications

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Vanadate-based Fe-MOFs as promising negative electrode for hybrid supercapacitor device

Enhanced electrochemical capacitance of titanium oxide nanoparticles using low-energy nitrogen ion irradiation

WS2/Mesoporous Carbon Nanostructures as a Bifunctional Electrode for All Quasi‐Solid‐State Supercapacitor and Oxygen Evolution Reaction

Contact Info

Product

Resources

About

WS₂/Mesoporous Carbon Nanostructures as a Bifunctional Electrode for All Quasi‐Solid‐State Supercapacitor and Oxygen Evolution Reaction