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Hydrothermal Synthesis of Carbon Nanoparticles for Various Applications

Electronic Theses of Indian Institute of Science

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Field Value
 
Title Hydrothermal Synthesis of Carbon Nanoparticles for Various Applications
 
Creator Sadhanala, Hari Krishna
 
Subject Hydrothermal Synthesis
Carbon Nanoparticles (CNPs)
Nitrogen Co-doped Carbon Nanoparticles
Bifunctional Catalysts
Nanodendrites
White Light Phosphor
Boron-doped Carbon Nanoparticles
N-doped Carbon Nanoparticles
White Light Emitting Diodes
Carbon Nanoparticles - Synthesis
White-Light-Emitting-Diodes
Materials Science
 
Description Carbon nanoparticles (CNPs) have drawn great attention in the last few years owing to their unique properties such as excellent water solubility, chemical stability, inertness, low toxicity, good bio-compatibility, and tunable photo physical properties. Recently, researchers have focused on hetero atom (N, S and B) doped CNPs due to their excellent properties. These properties make the CNPs and doped CNPs as potential candidates for a wide range of applications. For example, metal ion detection in aqueous solution, bio-imaging, bio-sensing, photovoltaic devices, cleavage of deoxyribonucleic acid (DNA), and catalysis. Therefore, CNPs are alternative to inorganic semiconductor nanoparticles. However, CNPs with diameter less than 10 nm have been prepared using various approaches including top down and bottom methods. Cutting the bulk carbon from high dimensional to zero dimensional by using either physical or chemical process are classified as top down method. Bottom up method refers the conversion of organic precursor to nano-carbon by using thermal pyrolysis, microwave based hydrothermal method, cage opening of C60 molecules.
In the present work, I have dealt with the facile synthesis of CNPs and different hetero atom doped carbon nanoparticles (N-CNPs, B-CNPs, and BN-CNPs) using the hydrothermal method. Based on their intriguing physical and chemical properties, these CNPs/doped-CNPs have been explored for various applications such as (i) metal-free catalysts, (ii) color tunability from red to blue and bio-imaging, (iii) ammonia sensing, (iv) white light generation, and (v) detection of picric acid (PA) in aqueous solution. Finally, I have presented 3D nanodendrites of N-CNPs and Pd NPs and their excellent catalytic mass activity for methanol electro-oxidation and ultra-fast reduction of 4-nitrophenol.
 
Contributor Nanda, Karuna Kar
 
Date 2018-02-20T06:48:17Z
2018-02-20T06:48:17Z
2018-02-20
2016
 
Type Thesis
 
Identifier http://hdl.handle.net/2005/3147
http://etd.ncsi.iisc.ernet.in/abstracts/4003/G27849-Abs.pdf
 
Language en_US
 
Relation G27849