A5023893546- Biofuel production and bioconversion
- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Catalysis for Biomass Conversion
- Thermochemical Biomass Conversion Processes
- Microbial Metabolic Engineering and Bioproduction
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Polysaccharides and Plant Cell Walls
- Enzyme Production and Characterization
- Structural Behavior of Reinforced Concrete
- Material Properties and Processing
- Adsorption and biosorption for pollutant removal
- Food composition and properties
- Catalysis and Hydrodesulfurization Studies
- Enzyme-mediated dye degradation
- Forest Biomass Utilization and Management
- Chemical Looping and Thermochemical Processes
- Natural Fiber Reinforced Composites
- Crystallization and Solubility Studies
- Extraction and Separation Processes
- Electrospun Nanofibers in Biomedical Applications
- biodegradable polymer synthesis and properties
- Biodiesel Production and Applications
- Supercapacitor Materials and Fabrication
North Carolina State University
2016-2025
Laboratoire de Réactivité et Chimie des Solides
2020-2024
Université de Picardie Jules Verne
2020-2024
Centre National de la Recherche Scientifique
2020-2024
Institut de Chimie de la Matière Condensée de Bordeaux
2020-2024
Daewoo Shipbuilding and Marine Engineering (South Korea)
2024
Seoul National University Bundang Hospital
2023
National University College
2023
New Generation University College
2023
Seoul National University Hospital
2023
Abstract Although measurements of crystallinity index (CI) have a long history, it has been found that CI varies significantly depending on the choice measurement method. In this study, four different techniques incorporating X-ray diffraction and solid-state 13 C nuclear magnetic resonance (NMR) were compared using eight cellulose preparations. We simplest method, which is also most widely used, involves just two heights in diffractogram, produced higher values than did other methods. Data...
The deconstruction of renewable biomass feedstocks into soluble sugars at low cost is a critical component the biochemical conversion to fuels and chemicals. Providing high concentration sugar syrups with levels chemicals toxic inhibitors, process yields essential for platform processes using pretreatment enzymatic hydrolysis. In this work, we utilize consisting deacetylation, followed by mechanical refining in disc refiner (DDR) concentrations without conventional chemical step. new...
Lignin-based fibers were produced by electrospinning aqueous dispersions of lignin, poly(vinyl alcohol) (PVA), and cellulose nanocrystals (CNCs). Defect-free nanofibers with up to 90 wt % lignin 15% CNCs achieved. The properties the dispersions, including viscosity, electrical conductivity, surface tension, examined correlated electrospinnability resulting morphology composite fibers. A ternary lignin–PVA–water phase diagram was constructed as a tool rationalize effect mixing ratios on...
Abstract The impact of lignin‐derived inhibition on enzymatic hydrolysis is investigated by using lignins isolated from untreated woods and pretreated wood pulps. A new method, biomass reconstruction, for which are precipitated onto bleached pulps to mimic lignocellulosic biomass, introduced, the first time, decouple lignin distribution issue chemistry. Isolated physically mixed reconstructed with Lignins obtained adsorb two six times more cellulase than woods. higher adsorption enzymes...
Using first-principles calculations, we chart the chemical space of 3d transition metal-based NaSICON phosphates with formula Na<italic>x</italic>MM′(PO<sub>4</sub>)<sub>3</sub> (with M and M′ = Ti, V, Cr, Mn, Fe, Co Ni). Novel compositions were revealed.
Pyrolysis bio-oil from biomass is a promising intermediate for producing transportation fuels and platform chemicals. However, its instability, often called aging, has been identified as critical hurdle that prevents being commercialized. The objective of this research to explore the aging mechanism by an accelerated test fractionated produced loblolly pine. When water soluble (WS), ether insoluble (EIS), pyrolytic lignin (PL) fractions were aged separately, increased molecular weight (Mw)...
The objective of this paper is to investigate the biomass torrefaction effect on bio-oil stability by comparing physicochemical and compositional properties aged bio-oils. Two aging methods, accelerated (held at 80 °C for 24 h) long-term natural (12-month storage 25 °C), were employed produce bio-oils such comparison. results indicate that made from heat-treated wood had similar behavior in terms increase water content, acid molecular weight, viscosity. rate, however, was found be different...
Biochar from lignocellulosic biomass is emerging as a sustainable material with versatile applications, but its detailed properties are poorly understood because of structural complexity. We propose biochar development model based on experimental results including composition analysis, surface area and pore X-ray diffraction electron microscopy imaging, energy loss spectroscopy. Loblolly pine derived biochars were produced at different carbonization temperatures between 300 to 1000 °C. Fixed...
The selective detection of crystalline cellulose in biomass was demonstrated with sum-frequency-generation (SFG) vibration spectroscopy. SFG is a second-order nonlinear optical response from system where the centrosymmetry broken. In secondary plant cell walls that contain mostly cellulose, hemicellulose, and lignin varying concentrations, only certain modes structure can meet noninversion symmetry requirements. Thus, be used to detect analyze selectively lignocellulosic without extraction...
A simple thermal pretreatment process called torrefaction has shown to be effective in improving the quality of pyrolysis oil terms chemical composition. The main objective this study was integrate with fast produce high bio-oil. In study, effects four temperatures (450, 500, 550, and 600 °C) shape selective zeolite catalyst (H+ZSM-5) on hydrocarbon yield were analyzed. Temperature found favorable for aromatic hydrocarbons from torrefied biomass. total carbon catalytic biomass 1.45 times...