Boosting the supercapacitor performance of activated carbon by constructing overall conductive networks using graphene quantum dots

2019 ◽  
Vol 7 (11) ◽  
pp. 6021-6027 ◽  
Author(s):  
Yan Qing ◽  
Yuting Jiang ◽  
He Lin ◽  
Luxiang Wang ◽  
Anjie Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Activated Carbon ◽  
Energy Storage ◽  
Graphene Quantum Dots ◽  
Capacitive Energy Storage ◽  
Storage Performance ◽  
Supercapacitor Performance

The capacitive energy storage performance of activated carbon can be significantly improved by embedding graphene quantum dots owing to the formation of overall conductive networks.

Boosting the energy storage performance of V2O5 nanosheets by intercalating conductive graphene quantum dots

Nanoscale ◽  
2020 ◽  
Vol 12 (32) ◽  
pp. 16944-16955
Author(s):  
Akhilesh Babu Ganganboina ◽  
Enoch Y. Park ◽  
Ruey-An Doong
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Electrochemical Properties ◽  
Hydrothermal Method ◽  
High Performance ◽  
Graphene Quantum Dots ◽  
Storage Performance

V2O5 nanosheets have been nano-engineered with 0D graphene quantum dots via a hydrothermal method, their outstanding electrochemical properties for high-performance supercapacitors are demonstrated.

Hybrid nanostructured C-dot decorated Fe3O4electrode materials for superior electrochemical energy storage performance

2015 ◽  
Vol 44 (19) ◽  
pp. 9221-9229 ◽  
Author(s):  
K. Bhattacharya ◽  
P. Deb
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Carbon Quantum Dots ◽  
Electrochemical Energy Storage ◽  
The Novel ◽  
Hybrid Nanocomposite ◽  
Storage Performance ◽  
Electrochemical Energy

Here, the novel Fe3O4-C hybrid nanocomposite demonstrates high specific capacitance (S.C.) than the pristine Fe3O4nanospheres due to the presence of the highly conducting carbon quantum dots.

Recent Advances on the Application of Graphene Quantum Dots in Energy Storage

2021 ◽  
Vol 15 ◽  
Author(s):  
Feng Shi ◽  
Quanrun Liu
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Potential Application ◽  
Active Sites ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Graphene Quantum Dots ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
New Energy

Background: As an emerging carbon nanomaterial, graphene quantum dots (GQDs) have shown great potential application in new energy storage devices due to their unique small size effect and abundant edge active sites. This work introduces the main synthesis strategies of GQDs, which includes top-down and bottom-up methods; the application examples of GQDs and GQDs-based composites in energy storage are reviewed, and more, the unique advantages of GQDs are used in supercapacitors, Lithium-ion batteries (LIBs) and Lithium-sulfur batteries (Li–S batteries) are highlighted. The problems and development prospects in this growing area are also discussed. Method: We conducted a detailed search of “the application of GQDs in energy storage devices” in the published papers and the public patents based on Web of Science database in the period from 2014 to 2020. The corresponding literature was carefully evaluated and analyzed. Results: Sixty papers and twenty-eight recent patents were included in this mini-review. The significant advances in the recent years are summarized with comparative and balanced discussion. Thanks to the unique properties of large specific surface area, high conductivity and abundant active sites, GQDs have unparalleled potential application for new energy storage, especially improving the specific capacity and cycle stability of supercapacitors, LIBs and Li-S batteries. Conclusion: The findings of this mini-review confirm the importance of GQDs, show the enhanced electrochemical performance in supercapacitors, LIBs and Li-S batteries, and also provide a helpful guide to design and fabricate highefficiency electrode materials.

Hierarchical nickel nanowire@NiCo2S4 nanowhisker composite arrays with a test-tube-brush-like structure for high-performance supercapacitors

2018 ◽  
Vol 6 (31) ◽  
pp. 15284-15293 ◽  
Author(s):  
Jie Liao ◽  
Peichao Zou ◽  
Songyang Su ◽  
Adeela Nairan ◽  
Yang Wang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Cathode Materials ◽  
High Performance ◽  
State Of The Art ◽  
Test Tube ◽  
Asymmetric Supercapacitor ◽  
Storage Performance ◽  
Array Electrode ◽  
Nickel Nanowire

An asymmetric supercapacitor consisting of a NiCo2S4 nanowhisker-array electrode and activated carbon shows state-of-the-art energy storage performance for NiCo2S4-based cathode materials at the device level.

Chaos to order: an eco-friendly way to synthesize graphene quantum dots

RSC Advances ◽  
2014 ◽  
Vol 4 (81) ◽  
pp. 43160-43165 ◽  
Author(s):  
Ying Huang ◽  
Chiyao Bai ◽  
Kecheng Cao ◽  
Yin Tian ◽  
Yue Luo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Activated Carbon ◽  
Graphene Quantum Dots

A rapid, simple and pollution-free method was developed to synthesize graphene quantum dots from amorphous activated carbon.

scholarly journals Enhanced Lithium Storage Performance of CuO Nanowires by Coating of Graphene Quantum Dots

2014 ◽  
Vol 2 (2) ◽  
pp. 1400499 ◽  
Author(s):  
Changrong Zhu ◽  
Dongliang Chao ◽  
Jing Sun ◽  
Ignacio Mínguez Bacho ◽  
Zhanxi Fan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Lithium Storage ◽  
Storage Performance ◽  
Cuo Nanowires

Graphene Quantum Dots Coating Enhances Lithium Storage Performance of CuO Nanowires

2015 ◽  
Author(s):  
Changrong Zhu ◽  
Dongliang Chao ◽  
Jing Sun ◽  
Ignacio Mínguez Bacho ◽  
Zhanxi Fan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Lithium Storage ◽  
Storage Performance ◽  
Cuo Nanowires

Energy storage performance of hybrid aqueous supercapacitor based on nano-Li2MnSiO4 and activated carbon

Ionics ◽  
2016 ◽  
Vol 22 (9) ◽  
pp. 1719-1728 ◽  
Author(s):  
Prerna Chaturvedi ◽  
Anjan Sil ◽  
Yogesh Sharma
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Storage Performance
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