A5067038030- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials and Printing Technologies
- Fiber-reinforced polymer composites
- Supercapacitor Materials and Fabrication
- Carbon Nanotubes in Composites
- Graphene research and applications
- Surface Modification and Superhydrophobicity
- Conducting polymers and applications
- Graphite, nuclear technology, radiation studies
- Thin-Film Transistor Technologies
- Organic Electronics and Photovoltaics
- Fuel Cells and Related Materials
- Thermal properties of materials
- ZnO doping and properties
- Silicon and Solar Cell Technologies
- Advancements in Battery Materials
- Nanotechnology research and applications
- Internet of Things and Social Network Interactions
- Natural Fiber Reinforced Composites
- Advanced Materials and Mechanics
- Heat Transfer and Optimization
- Advanced Battery Technologies Research
- MXene and MAX Phase Materials
- Cellular and Composite Structures
- Electrohydrodynamics and Fluid Dynamics
Institute for Advanced Engineering
2021
Korea Electrotechnology Research Institute
2008-2018
Morgan Advanced Materials (United Kingdom)
2018
Kyungpook National University
2016-2017
Changwon National University
2016-2017
Government of the Republic of Korea
2016-2017
Seoul National University
2011
Dong-Eui University
2008
Variable wettability of hybrid films thin multiwalled carbon nanotubes and silane sols is achieved by the combination transparent conductive with chemical functionality compound. These superhydrophobic or superhydrophilic may be available for such applications as development self-cleaning coatings optoelectronics. Supporting information this article on WWW under http://www.wiley-vch.de/contents/jc_2089/2008/adma200800239_s.html from author. Please note: The publisher not responsible content...
Layered materials must be exfoliated and dispersed in solvents for diverse applications. Usually, highly energetic probe sonication may considered to an unfavourable method the less defective exfoliation dispersion of layered materials. Here we show that judicious use ultrasonic cavitation can produce transition metal dichalcogenide nanosheets extraordinarily non-toxic solvent by minimising sonolysis molecules. Our also lead defective, large graphene oxide from graphite a short time (within...
Modulation of the junction resistance between metallic nanowires is a crucial factor for high performance network-structured conducting film. Here, we show that under current flow, silver nanowire (AgNW) network films can be stabilised by minimizing Joule heating at NW-NW assisted in-situ interconnection with small amount (less than 3 wt%) single-walled carbon nanotubes (SWCNTs). This was achieved direct deposition AgNW suspension containing SWCNTs functionalised quadruple hydrogen bonding...
Directly printed superhydrophobic surfaces containing conducting nanomaterials can be used for a wide range of applications in terms nonwetting, anisotropic wetting, and electrical conductivity. Here, we demonstrated that direct-printable flexible were fabricated on substrates via with an ultrafacile scalable screen printing carbon nanotube (CNT)-based pastes. A polydimethylsiloxane (PDMS)-polyethylene glycol (PEG) copolymer was as additive pastes to realize the printability paste well...
Most synthetic processes of metallic nanostructures were assisted by organic/inorganic or polymeric materials to control their shapes one-dimension two-dimension. However, these additives have be removed after synthesis metal for applications. Here we report a straightforward method the low-temperature and additive-free nanobelt-like silver templated nanocarbon (NC) via bio-inspired shape introducing supramolecular 2-ureido-4[1H]pyrimidinone (UPy) groups into NC surface. The growth Ag...
Abstract Nanocarbon-based conducting fibres have been produced using solution- or dry-spinning techniques. Highly conductive polymer-composite containing large amounts of nanomaterials not without dispersants, however, because the severe aggregation materials in high-concentration colloidal solutions. Here we show that highly (electrical conductivity ~1.5 × 10 5 S m −1 ) carbon nanotubes and silver nanowires can be fabricated via a conventional solution-spinning process any other treatment....
This study aimed to investigate the effect of impregnation pressure on decrease in porosity impregnated bulk graphite. The correlation between pitch behavior and pore sizes graphite block was studied determine optimal pressure. densities porosities before after under various pressures 10 50 bar were evaluated based Archimedes method a mercury porosimeter. density increased rates by 1.93–2.44%, whereas rate calculated from open decreased 15.15–24.48%. increase significantly high when 40 bar....
We report on the formation of assembled bundle structure thin multiwalled carbon nanotubes (t-MWNTs) modified with hydroxyl groups, which was assisted by intertube hydrogen bonding interaction. To achieve this, t-MWNTs were first functionalized hydroxide (t-MWNT-OH) reflux in peroxide. For comparison, carboxyl-modified (t-MWNTs-COOH) prepared nitric acid treatment as a control sample. After filtration t-MWNT solution, flexible film obtained from t-MWNTs-OH, whereas t-MWNTs-COOH formed...
A method of microwave sintering that is mediated by carbon nanotubes (CNTs) has been developed to obtain high-conductivity Ag patterns on the top heat-sensitive plastic substrates within a short time. The are printed CNTs formed and rapidly heated great extent heat transferred from microwave-heated CNTs. conductivity microwave-sintered reaches ∼39% bulk 1 s without substrate deformation. Furthermore, enhances adhesion thermoplastic because causes interfacial fusion between substrates,...
The hydrothermal and mechanical stability of transparent conducting films is a prerequisite for commercial applications in optoelectronic devices.
Microwave flash annealing dramatically enhances the environmental stability of AuCl3-doped single-walled carbon nanotube (SWCNT) films on plastic substrates using fast microwave nanoheating to produce a large temperature difference between and substrates. Within one second, rapidly caused thermal decomposition AuCl3 dopants as well simultaneous embedding SWCNTs in substrate, without deforming it. The hygroscopic Cl atoms were partially desorbed from by rapid decomposition, embedded substrate...
Dispersion of nanocarbon materials in liquid media, via solution processing such as spraying, printing, spinning, etc. is one the prerequisites for practical applications. Here we report that water-dispersible single-walled carbon nanotubes (SWCNTs) were prepared through successive treatments with chlorosulfuric acid (CSA)/H2O2 and N-methylmorpholine N-oxide (NMO) monohydrate. The powder CSA/H2O2- NMO-treated SWCNTs (N-SWCNTs) could be readily redispersed water concentrations high 1 g l-1...
Atomically thin and two-dimensional graphene oxide (GO) is a very fascinating material because of its functional groups, high transparency, solution processability. Here we show that highly oxidized GO (HOGO) nanosheets serve as an effective interfacial modifier transparent conducting films with one-dimensional (1D) silver nanowires (AgNWs) single-walled carbon nanotubes (SWCNTs). Optically small-sized nanosheets, minimal sp2 domains, were successfully fabricated by step-wise oxidation...
Abstract Petroleum pitch‐based graphite blocks (GBs) attract considerable attention owing to their low cost, high yield, and possible application as heat sink components. However, no studies have systematically investigated the particle size distribution of GBs, structures, relationship between structures thermal properties resulting from graphitization. Hence, herein, we present a novel method for fabricating petroleum GBs using natural flakes (GFs) sizes ranging 50 500 μm bimodal...