A5025377785- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- biodegradable polymer synthesis and properties
- Lignin and Wood Chemistry
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Cellulose Research Studies
- Supercapacitor Materials and Fabrication
- Catalysis and Hydrodesulfurization Studies
- Anaerobic Digestion and Biogas Production
- Advanced biosensing and bioanalysis techniques
- Asymmetric Hydrogenation and Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Plasmonic and Surface Plasmon Research
- Advanced Battery Materials and Technologies
- Enzyme-mediated dye degradation
- Chemical Synthesis and Reactions
- Membrane Separation Technologies
- Polyoxometalates: Synthesis and Applications
- Zeolite Catalysis and Synthesis
- Global Educational Reforms and Inequalities
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Hybrid Renewable Energy Systems
- Thermal Expansion and Ionic Conductivity
University of Louisville
2019-2022
Shahjalal University of Science and Technology
2014
Kitchen waste (KW) can be utilized to produce biogas due its high biodegradability, calorific value and nutritive microbes, which will reduce our dependency on fossil fuels. The research work was conducted investigate the production ability of as an alternative energy from KW with co-digestion cow manure (CM) through anaerobic digestion (AD). Firstly, three digesters were prepared observe individual degradation rate KW, CM co-digested at room temperature (25 0C∼300 C) 37 0C (mesophilic...
Levulinic acid, a versatile platform chemical from renewable lignocellulose, can be used for the production of fuels, solvents, and pharmaceuticals. The complex bonds lignocellulose necessitate reaction conditions at high acid loading, low temperature and/or pressure. These harsh degrade intermediates (5-hydroxymethylfurfural (HMF) glucose), resulting in yield levulinic acid. Here, we show that combined dissolution ionic liquids (1-ethyl-3-methylimidazolium chloride) hydrolysis by HCl...
Abstract Fructose is a versatile precursor for food and chemicals. Currently, catalytic production of fructose achieved by enzymatic isomerization glucose from renewable lignocellulose. Although the catalyst, isomerase, selective, it not stable. Here, aluminum‐containing metal‐organic frameworks (Al‐MOFs) are shown to be active, stable, reusable in ethanol. Al‐MOFs 64% selectivity with 82% conversion at 120 °C, superior performance compared most other solid catalysts. The amino groups...
Abstract Lignin is a by‐product of biorefineries and pulp paper manufacturers. renewable source phenolic precursors for fuels chemicals. Hydrogenolysis lignin cleaves the abundant β‐O‐4 bonds releases phenolics. However, selective hydrogenolysis lignin's challenging because it requires high‐pressure H 2 . Here we show efficient model compounds technical by Ru/C catalyst internal hydrogen. The aliphatic hydroxyl groups (C α −OH) in enabled Ru‐catalyzed dehydrogenation hydrogen formation...
Softwood lignocellulose is a potential feedstock for the production of biofuels and bioproducts. However, highly cross-linked nature softwood restricts enzyme access to its sugars. Thus, harsh pretreatment conditions (180–280 °C) and/or high loading are required unlock These requirements negatively affect economic viability softwoods in biorefineries. Here we show that H3PO4 pine Douglas fir under mild reaction temperature (50 atmospheric pressure enabled (∼80%) glucan digestibility with low...
The utilization of nanoparticle-polymer bead hybrid nanostructures as a SERS substrate depends on the control deposition, density, and distribution nanoparticles surface. Here we demonstrate fabrication large area substate via two- step DNA mediated assembly gold nanoprisms polystyrene (PS) beads into ensemble that are densely coated with nanoprisms. First, loaded PS through hybridization. close packed arrangement anisotropic in different orientations surface results plasmonic variable...
Rapid self-discharge, poor cycling stability, and low Coulombic efficiency from polyselenide shuttling have retarded practical applications of lithium–selenium batteries. Here, we show that a cation-selective PCN separator PCN-250(Fe) metal–organic frameworks coated on porous polypropylene membrane suppresses shuttle enhances lithium-ion transport in The Lewis acid sites this acted as selective barriers immobilized polyselenides provided uniform stable lithium nucleation growth during...
Abstract Lactic acid is a renewable and versatile chemical for food, pharmaceuticals, cosmetics, other chemicals. can be produced from biomass‐derived dihydroxyacetone. However, selective recyclable water‐tolerant catalysts need to developed the specific production of lactic acid. Here we show that MIL‐101(Al)−NH 2 metal‐organic framework (MOF) solid Lewis catalyst dihydroxyacetone isomerization The acidic promoted high selectivity 91 % at 96 conversion 120 °C in water. reaction proceeded by...
Catalytic pathways to produce high carbon number compounds from benzyl phenyl ether require multiple steps break the aryl etheric carbon-oxygen bonds; these are followed by energy-intensive processes remove oxygen atoms and/or carbon-carbon coupling. Here, we show an upgrading strategy transform into large phenolic (C12-C22) a one-step C-O breaking and C-C coupling catalyzed metal triflates under mild condition (100 °C 1 bar). Hafnium triflate was most selective for desired products. In...
Colloidal crystallization using DNA provides a robust method for fabricating highly programmable nanoparticle superstructures with collective plasmonic properties. Here, we report on the DNA-guided fabrication of 3D aggregates from polydisperse gold nanoprisms. We first construct 1D crystals via DNA-induced and shape-directed face-to-face assembly anisotropic Using near-Tm thermal annealing approach that promotes long-range interaction ordering, then assemble nanoprism into aggregate...
A comparative study on anaerobic co-digestion of kitchen waste (KW) with sewage sludge (SS) and KW cow manure (CM) were carried out in 1 liter batch digesters under mesophilic temperature (37°C). CM SS both acted as seed bacteria to produce biogas through bio-degradation organic materials conditions. At first, three prepared observe the individual degradation rate KW, co-digested at room temperature(25°C ∼30°C) 37°C observed for was higher than other two components. Again, another that two....