Graphene quantum dots and its modified application for energy storage and conversion

Roy, Ekta; Nagar, Achala; Sharma, A. K.; Roy, Souvik; Pal, Souvik

doi:10.1016/j.est.2021.102606

Cited by 25 publications

(11 citation statements)

References 94 publications

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“…109 GQDs display large surface areas and easy functionalization that benefit energy storage applications. 110 GQDs have been actively used in various batteries like lithium-sulfur batteries, metal-air batteries, and lithium-silicon batteries. 111 A modified sulfur-sulfide functionalization provides efficient performance by introducing GQDs in the sulfur cathode of lithium-sulfur batteries.…”

Section: Batteriesmentioning

confidence: 99%

“…The sources obtained from nature require storage from the battery, so there is an urgency to design a battery that exhibits excellent efficiency, less weight, large energy density, and long-time stability to be used per the demand of energy . GQDs display large surface areas and easy functionalization that benefit energy storage applications . GQDs have been actively used in various batteries like lithium-sulfur batteries, metal-air batteries, and lithium-silicon batteries .…”

Section: Applications Of Gqdsmentioning

confidence: 99%

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Bioresource-Based Graphene Quantum Dots and Their Applications: A Review

Sohal

Singla

Malode

et al. 2023

ACS Appl. Nano Mater.

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Environmental worsening, energy crises, and various other factors have enhanced the demand for facile, cheap, and green approaches for creating emerging materials from bioresources. In recent times, graphene quantum dots (GQDs) are the most developing zero-dimensional nanomaterials owing to exclusive electronic and optical properties. Biomass-derived GQDs have been considered an advanced material and have gained complete attention because of their green, inexpensive, nonsustainable, environmental-friendly, and recyclable nature. This review elucidates the current challenges and the use of bioprecursors (e.g., rice husk, plant leaves, honey, coffee) and the methodologies (top-down and bottom-up) of their conversion into ecofriendly GQDs. Biomass resources are converted into ecofriendly GQDs and a facile, low-cost, scalable synthesis. Biomass-derived GQDs are in great demand due to attractive properties like large surface area, low toxicity, and good biocompatibility. Various parameters like absorption, surface and edge states, and quantum confinement affecting the physical, chemical, and electrochemical properties of GQDs are discussed. This review also focuses further on the result of heteroatom doping, pH, and solvent on the photoluminescence (PL) emission of GQDs. The optical and electrochemical sensors based on biomass-derived GQDs are explored in detail. Biomass-derived GQDs have tremendous performance in the biomedical field and energy applications due to their very low toxicity and biocompatibility. This review addresses the future approaches and possible research directions in biomass-derived GQDs. GQDs display minimal cytotoxic reactivity, superior biocompatibility, and chemical insensitivity. To enhance the optoelectronic and physicochemical characteristics of GQDs, their properties can be tuned via surface/edge functionalization or doping. Monitoring the concentrations of pollution gases severely harming the biosphere requires developing more precise and sensitive sensors. Doped GQDs can significantly increase their capacity to adsorb. The reliable gas sensors based on doped GQDs could be a viable replacement for the present sensors available in the market.

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Section: Batteriesmentioning

confidence: 99%

Section: Applications Of Gqdsmentioning

confidence: 99%

Bioresource-Based Graphene Quantum Dots and Their Applications: A Review

Sohal

Singla

Malode

et al. 2023

ACS Appl. Nano Mater.

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“…As a result, their use in systems that use supercapacitors is constrained. [8][9][10] Although rGO and GQDs have both showed promise for application in supercapacitor technology, new research indicates that GO may be a preferable choice. 10 In recent years, graphene oxide (GO) has emerged as a captivating material with immense potential in various elds, including energy storage.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10] Although rGO and GQDs have both showed promise for application in supercapacitor technology, new research indicates that GO may be a preferable choice. 10 In recent years, graphene oxide (GO) has emerged as a captivating material with immense potential in various elds, including energy storage. Graphene, a two-dimensional (2D) allotrope of carbon, possesses remarkable electrical, thermal, and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Recent advances in energy storage with graphene oxide for supercapacitor technology

Mousavi,

Hashemi,

Kalashgrani

et al. 2023

Sustainable Energy Fuels

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Zero‐Dimensional Carbon Nanomaterials for Electrochemical Energy Storage

Breczko,

Wysocka‐Żołopa,

Grądzka

et al. 2024

ChemElectroChem

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Progress in research on high‐performance electrochemical energy storage devices depends strongly on the development of new materials. The 0‐dimensional carbon nanomaterials (fullerenes, carbon quantum dots, graphene quantum dots, and “small” carbon nano‐onions) are particularly recognized in this area of research. Their unique properties beneficial for batteries and supercapacitors application are the result of their small and controllable size, ranging from 1 to 10 nm, and their structure. Fullerenes stand out for the particularly precise structure and rich redox properties. Carbon‐based quantum dots and “small” carbon nano‐onions provide a bridge between molecular fullerenes and larger nanostructured carbon systems. For the electrochemical energy storage, 0‐dimensional carbon structures are usually present in nanostructured composites, which ensure high efficiency of devices. In this review, issues related to the contribution of 0‐dimensional carbon materials in improving batteries and supercapacitors. Particular attention has been paid to progress resulting from the use of composites of these carbon nanostructures with other electroactive materials. Much attention has also been devoted to issues related to the synthesis of 0‐dimensional carbon nanostructures enabling the control of their size, chemical composition and surface morphology. Finally, issues requiring additional research are highlighted.

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Graphene quantum dots and its modified application for energy storage and conversion

Cited by 25 publications

References 94 publications

Bioresource-Based Graphene Quantum Dots and Their Applications: A Review

Bioresource-Based Graphene Quantum Dots and Their Applications: A Review

Recent advances in energy storage with graphene oxide for supercapacitor technology

Zero‐Dimensional Carbon Nanomaterials for Electrochemical Energy Storage

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