Electrochemical study on the intercalation properties of hydroxyl anion for the reversible conversion of graphene quantum dots into carbon dots

2015 ◽  
Vol 756 ◽  
pp. 161-170 ◽  
Author(s):  
Mohammad Mahdi Doroodmand ◽  
Morteza Deylaminezhad
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Electrochemical Study ◽  
Hydroxyl Anion

Green Synthesis and Electrochemical Study of Cobalt/Graphene Quantum Dots for Efficient Water Splitting

2019 ◽  
Vol 123 (14) ◽  
pp. 9183-9191 ◽  
Author(s):  
Joseph Cirone ◽  
Syed Rahin Ahmed ◽  
Peter C. Wood ◽  
Aicheng Chen
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Water Splitting ◽  
Graphene Quantum Dots ◽  
Electrochemical Study

scholarly journals Facile synthesis of preformed mixed nano-carbon structure from low rank coal

2018 ◽  
Vol 36 (1) ◽  
pp. 14-20 ◽  
Author(s):  
B. Manoj ◽  
Ashlin M. Raj ◽  
George Thomas Chirayil
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Bituminous Coal ◽  
Graphene Quantum Dots ◽  
Energy Resource ◽  
Low Rank ◽  
Tem Analysis ◽  
Graphene Layers ◽  
Simple Chemical ◽  
Nano Carbon

Abstract Coal is a natural energy resource which is mainly used for energy production via combustion. Coal has nanocrystals embedded in it, formed during the coalification process, and is an ideal precursor for nano-carbon dots and diamonds. Herein, we report a facile top-down method to synthesise nanodots and diamonds of the size of 5 nm to 10 nm from three different types of coal by simple chemical leaching. TEM analysis revealed the formation of a mixture of carbon dots, graphene layers, and quantum dots in bituminous coal and sub-bituminous coal. Raman analysis confirmed the existence of synthesized nanodiamond and nano-carbon mixed phase with defects associated with it. It is concluded that graphene quantum dots, nanodiamonds, graphene sheets and carbon dots present in coal can be extracted by simple chemical treatment. These structures can be tuned to photoluminescent material for various optoelectronic applications or energy harvesting devices like super capacitors.

Excitation dependence and independence of photoluminescence in carbon dots and graphene quantum dots: insights into the mechanism of emission

Nanoscale ◽  
2021 ◽  
Author(s):  
Abu Bakar Siddique ◽  
Syed Minhaz Hossain ◽  
Ashit Kumar Pramanick ◽  
Mallar Ray
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Carbon Nanostructures ◽  
Graphene Quantum Dots ◽  
Emission Characteristics ◽  
Emission Mechanism ◽  
Insight Into

A pattern in excitation dependent and independent emission characteristics provides important insight into the emission mechanism from 0D carbon nanostructures.  

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

Nanoscale ◽  
2016 ◽  
Vol 8 (5) ◽  
pp. 2532-2543 ◽  
Author(s):  
Yan Du ◽  
Shaojun Guo
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Chemical Doping ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Chemical doping for fluorescent carbon dots endows acceptable properties for diverse applications.

Ratiometric fluorescence response of a dual light emitting reduced carbon dot/graphene quantum dot nanohybrid towards As(iii)

2019 ◽  
Vol 7 (33) ◽  
pp. 10309-10317 ◽  
Author(s):  
Satyabrat Gogoi ◽  
Rashmita Devi ◽  
Hemant Sankar Dutta ◽  
Manobjyoti Bordoloi ◽  
Raju Khan
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Carbon Dots ◽  
Fluorescence Probe ◽  
Graphene Quantum Dots ◽  
Ratiometric Fluorescence ◽  
Carbon Dot ◽  
Light Emitting ◽  
Graphene Quantum Dot ◽  
Fluorescence Response

A dual light emitting fully carbon-based nanohybrid system comprising of glutathione-functionalized reduced carbon dots and graphene quantum dots is fabricated as ratiometric fluorescence probe for As(iii).

Glowing Graphene Quantum Dots and Carbon Dots: Properties, Syntheses, and Biological Applications

Small ◽  
2014 ◽  
Vol 11 (14) ◽  
pp. 1620-1636 ◽  
Author(s):  
Xin Ting Zheng ◽  
Arundithi Ananthanarayanan ◽  
Kathy Qian Luo ◽  
Peng Chen
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications

scholarly journals Carbon Dots and Graphene Quantum Dots in Electrochemical Biosensing

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 634 ◽  
Author(s):  
Susana Campuzano ◽  
Paloma Yáñez-Sedeño ◽  
José M. Pingarrón
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Low Cost ◽  
Graphene Quantum Dots ◽  
Advantages And Disadvantages ◽  
Electrochemical Biosensing ◽  
Chemical Inertness ◽  
Low Toxicity ◽  
Carbon Based Nanomaterials ◽  
Surface Chemistries

Graphene quantum dots (GQDs) and carbon dots (CDs) are among the latest research frontiers in carbon-based nanomaterials. They provide interesting attributes to current electrochemical biosensing due to their intrinsic low toxicity, high solubility in many solvents, excellent electronic properties, robust chemical inertness, large specific surface area, abundant edge sites for functionalization, great biocompatibility, low cost, and versatility, as well as their ability for modification with attractive surface chemistries and other modifiers/nanomaterials. In this review article, the use of GQDs and CDs as signal tags or electrode surface modifiers to develop electrochemical biosensing strategies is critically discussed through the consideration of representative approaches reported in the last five years. The advantages and disadvantages arising from the use of GQDs and CDs in this context are outlined together with the still required work to fulfil the characteristics needed to achieve suitable electrochemical enzymatic and affinity biosensors with applications in the real world.

scholarly journals 2021 Nanomaterials Best Paper Award: Announcement and Interview with the Winner

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3318
Author(s):  
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Paper Award ◽  
Electrochemical Biosensing

After an extensive voting period, we are proud to present the Best Paper Award to “Carbon Dots and Graphene Quantum Dots in Electrochemical Biosensing [...]

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