A5054977195- Lignin and Wood Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Advanced Cellulose Research Studies
- Dielectric materials and actuators
- Ferroelectric and Piezoelectric Materials
- Wood Treatment and Properties
- Polymer composites and self-healing
- Natural Fiber Reinforced Composites
- Aerogels and thermal insulation
- Conducting polymers and applications
- Electrospun Nanofibers in Biomedical Applications
- Urban Green Space and Health
- Urban Heat Island Mitigation
- Pickering emulsions and particle stabilization
- High voltage insulation and dielectric phenomena
- Global Financial Crisis and Policies
- Adsorption and biosorption for pollutant removal
- Nanomaterials for catalytic reactions
- Monetary Policy and Economic Impact
- Organic Electronics and Photovoltaics
- Conservation Techniques and Studies
- Environmental remediation with nanomaterials
- Phase Change Materials Research
- Nanocomposite Films for Food Packaging
- Electrowetting and Microfluidic Technologies
Mississippi State University
2018-2024
Jeonbuk National University
2018-2023
Alcorn State University
2023
Georgetown University
2021
Stark State College
2020
Georgia Institute of Technology
2012-2017
AID Atlanta
2014-2017
University of Georgia
2017
A phosphonic acid is used as a surface initiator for the growth of polystyrene and polymethylmethacrylate (PMMA) from barium titanate (BTO) nanoparticles through atom transfer radical polymerization with activators regenerated by electron transfer. This results in cores embedded grafted polymer. The one-component system, PMMA-grafted-BTO, achieves maximum extractable energy density 2 J/cm3 at field strength ∼220 V/μm, which exhibits 2-fold increase compared to that composite without covalent...
We report the preparation of lignin-based rigid polyurethane (RPU) foams from surface functionalized kraft lignin via a simple and environmentally benign process. Lignin was with polyisocyanate at 80 °C for 1 h, resulting lignin-polyisocyanate prepolymer confirmed by increased viscosity Fourier-transform infrared spectroscopy (FTIR). The RPU containing up to 30% as substitute petroleum-based polyols exhibited comparable thermal mechanical properties conventional foams. prepared...
Sustainable textile dyeing technology using nanofibrillated cellulose is developed that would significantly reduce wastewater and potential environmental costs.
Abstract Biochar (BC)-supported graphene-encapsulated zero-valent iron nanoparticle composites (BC-G@Fe 0 ) are promising engineering nanocomposites that can be used to scavenge heavy metal from wastewater. However, the production of BC-G@Fe through carbothermal reduction using biomass as a carbon source remains challenging because pyrolysis complications. Here, we examined two routes for preparing bamboo source. The first route impregnated Fe ions (Fe 2+/3+ into unpyrolyzed particles...
Polymer materials with large dielectric constants are desirable for the development of high energy density capacitors. We show that properties poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) [P(VDF-TrFE-CTFE)] can be improved by use processing conditions favor formation a highly crystalline morphology nonpolar α-phase. Through spin coating, thermal treatment above melting temperature, and quenching, we were able to attain crystalline, α-phase rich has quite constant 77 ±...
A hybrid sol–gel dielectric bilayer structure yields a maximum energy density of 40 J cm−3 with high extraction efficiency. The silica is coated by an alkylphosphonic acid monolayer, as charge-blocking layer. dense monolayer suppresses charge injection and electrical conduction, leading to efficiency, which exhibits nearly linear behavior suitable for applications. As service our authors readers, this journal provides supporting information supplied the authors. Such materials are peer...
Nanocellulose-based aerogels, featuring a three-dimensional porous structure, are considered as desirable green absorbent because of their exceptional absorption performance well the abundance and renewability raw material. However, these aerogels often require hydrophobic modification or carbonization, which is environmentally harmful energy-intensive. In this study, we introduce Pickering-emulsion-templating approach to fabricate cellulose nanofibril (CNF) aerogel with hierarchical pore...
Blade casting of BaTiO<sub>3</sub>/P(VDF-<italic>co</italic>-HFP) nanocomposites has improved morphology resulting in enhanced breakdown strength and energy density (7 J cm<sup>−3</sup>).
Improving energy efficiency of buildings reduces costs and helps meet the ever increasing world demand. Innovative building design requires high-performance structural materials with mechanical integrity, efficiency, sustainability. Here, we report a polyurethane/lignin hybrid composite cell-wall pores for shape stabilization an organic phase change material (PCM) as active component in buildings. Sub-50 μm on cell wall lignin-based rigid polyurethane (LRPU) foam, which were barely seen...
A wooden matched-die mold was manufactured to develop wood-based corrugated panels. Wood veneers brushed with resin were cold pressed between the halves and formed into a geometry. The panels used as core bonded flat veneer-based facesheets sandwich whole manufacturing process involved cold-forming technique that allowed be produced no heat. Specimens cut from both submitted four-point bending test evaluate their structural performance. Adopting same number of layers make panels, fabricated...
Hybrid organic-inorganic sol-gel dielectric thin films from a neat 2-cyanoethyltrimethoxysilane (CNETMS) precursor have been fabricated and their permittivity, strength, energy density characterized. CNETMS possess compact, polar cyanoethyl groups exhibit relative permittivity of 20 at 1 kHz breakdown strengths ranging 650 V/μm to 250 for film thicknesses 1.3 3.5 μm. Capacitors based on extractable densities 7 J/cm(3) 300 V/μm, as determined by charge-discharge polarization-electric field...
Cellulose nanofibrils (CNF) were produced by high-pressure homogenization from kraft pulp in the presence of carboxymethyl cellulose (CMC) varying molecular weights. CNF pretreated with 250 kD CMC exhibited maximum specific surface area (SSA) 641 m2/g, which is comparable to that 2,2,6,6-tetramethyl-piperidinyl-1-oxyl (TEMPO)-meditated oxidation a high degree fibrillation. Rheological and microscopic analyses also indicated level fibrillation for CMC-pretreated CNF. In contrast, reference...
A dielectric bilayer structure based on a hybrid sol–gel film (2-cyanoethyltrimethoxysilane) with nano-scale polymeric charge blocking layer (poly(<italic>p</italic>-phenylene oxide)) has been developed for energy storage.