Excellent supercapacitive performance of graphene quantum dots derived from a bio-waste marigold flower (Tagetes erecta)

Gupta, Gopal Krishna; Sagar, Pinky; Srivastava, Monika; Singh, Ashwani Kumar; Singh, Jai; Srivastava, Sanjay; Srivastava, Alka

doi:10.1016/j.ijhydene.2021.09.094

Cited by 30 publications

(24 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peaks observed around 1600 cm -1 in both TF and TFC, resulted from vibrational stretching of C=C bonds [45]. The peaks observed around 1017 and 1018 cm -1 in FTIR spectra of TF and TFC, respectively, could have resulted from vibrational stretching of C-N bonds [3,45].…”

Section: Characterization Studiesmentioning

confidence: 95%

“…A full cell was fabricated by sandwiching a pair of TFC-CCHy on either side of a SPVA-HRG-0.5 gel polymer electrolyte soaked Whatman® filter paper. groups [45]. The peaks observed around 2918 and 2857 cm -1 of TF and 2919 and 2854 cm -1 of TFC could result from vibrational stretching of C-H bonds of -CH groups [45].…”

Section: Characterization Studiesmentioning

confidence: 95%

“…The peaks observed around 2918 and 2857 cm -1 of TF and 2919 and 2854 cm -1 of TFC could result from vibrational stretching of C-H bonds of -CH groups [45]. The peaks observed around 1600 cm -1 in both TF and TFC, resulted from vibrational stretching of C=C bonds [45]. The peaks observed around 1017 and 1018 cm -1 in FTIR spectra of TF and TFC, respectively, could have resulted from vibrational stretching of C-N bonds [3,45].…”

Section: Characterization Studiesmentioning

confidence: 99%

“…[2]. Gupta et al [45] reported the synthesis of graphene quantum dots from TF and tested its potential as electrode material in SCs in a three-electrode configuration.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 2(b) illustrates the FTIR spectra of TF and TFC. Both TF and TFC showed broad peaks around 3274 and 3271 cm -1 resulting from vibrational stretching O-H bonds of hydroxyl (-OH)groups[45]. The peaks observed around 2918 and 2857 cm -1 of TF and 2919 and 2854 cm -1 of TFC could result from vibrational stretching of C-H bonds of -CH groups[45].…”

mentioning

confidence: 99%

See 4 more Smart Citations

Char of Tagetes erecta (African marigold) flower as a potential electrode material for supercapacitors

Nersu

Annepu

Rajaputra

et al. 2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

A char of Tagetes erecta flowers (TFC) was derived through simple thermal decomposition of Tagetes erecta flowers (TF). Physico-chemical properties of as-prepared TFC were evaluated using XRD, FESEM, FTIR, TGA, N2 adsorption-desorption isotherm analysis and water contact angle measurements. The practicality and applicability of TFC as promising electrode material in supercapacitors (SCs) were evaluated in full-cell configuration by performing electrochemical characterizations like CV, GCD and EIS on a lab-scale TFC-based symmetric SC. TFC exhibited a remarkable specific capacitance of 118.4 F g-1 at a constant current density of 0.2 A g-1 and a specific energy of 4.1 Wh kg-1 at specific power of 0.1 kW kg-1. TFC showed excellent cyclic stability by retaining 92 % of its initial capacitance even after 6000 GCD cycles at 2 A g-1. The superior capacitive behaviour and cyclic stability of TFC could be attributed to its good wettability towards water. This excellent supercapacitive performance of TFC establishes it as a potential floral waste-derived carbon-based electrode material for SCs.

show abstract

Section: Characterization Studiesmentioning

confidence: 95%

Section: Characterization Studiesmentioning

confidence: 95%

Section: Characterization Studiesmentioning

confidence: 99%

“…[2]. Gupta et al [45] reported the synthesis of graphene quantum dots from TF and tested its potential as electrode material in SCs in a three-electrode configuration.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Char of Tagetes erecta (African marigold) flower as a potential electrode material for supercapacitors

Nersu

Annepu

Rajaputra

et al. 2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

show abstract

Carbon Nanomaterials‐Enabled High‐Performance Supercapacitors: A Review

Zhao

Liu

et al. 2022

Adv Energy and Sustain Res

View full text Add to dashboard Cite

Supercapacitors (SCs), an important kind of electrochemical energy storage device, are featured with high power density, rapid charging and discharging, and ultralong cycling lifespan and have been widely applied in multiscenario energy storage and output systems, such as portable consumer electronics, electric vehicles, and reservoir setups for green and sustainable energy resources. Among their components, electrode materials are of primary importance in dictating their performances. Owing to good electric conductivity, achievably large specific surface area, low cost, chemical stability, and easy loading with other electrochemically active species, various carbon nanomaterials, including activated carbons, carbon nanotubes, graphene, and other porous carbons, are promising electrode materials in the fabrication of high-performance SCs. In fact, the past decade has witnessed enormous efforts in the development of highperformance carbon-based SC electrode materials and great progresses achieved in the field. In this review, recent advances on these carbon-based SCs are summarized through a number of selected representative works. In each one, the unique preparation method, structural features, and their correlations to electrochemical properties and final SC performance are presented and discussed. At the end of the review, the challenges and future developing prospects are briefly outlined.

show abstract

Extraction of Carbon from Biomass-Based Bamboo and Coconut Husk for Enhancement of High-Performance Supercapacitor

Dandekar,

Godkar,

Salvi

et al. 2023

Springer Proceedings in Materials

View full text Add to dashboard Cite

Excellent supercapacitive performance of graphene quantum dots derived from a bio-waste marigold flower (Tagetes erecta)

Cited by 30 publications

References 48 publications

Char of Tagetes erecta (African marigold) flower as a potential electrode material for supercapacitors

Char of Tagetes erecta (African marigold) flower as a potential electrode material for supercapacitors

Carbon Nanomaterials‐Enabled High‐Performance Supercapacitors: A Review

Extraction of Carbon from Biomass-Based Bamboo and Coconut Husk for Enhancement of High-Performance Supercapacitor

Contact Info

Product

Resources

About