A5014163537- Fuel Cells and Related Materials
- Membrane Separation and Gas Transport
- Risk and Safety Analysis
- Advanced Battery Materials and Technologies
- Combustion and Detonation Processes
- Thermal and Kinetic Analysis
- Membrane Separation Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Electrocatalysts for Energy Conversion
- Energetic Materials and Combustion
- Extraction and Separation Processes
- Membrane-based Ion Separation Techniques
- biodegradable polymer synthesis and properties
- Synthesis and properties of polymers
- Disaster Response and Management
- Chemical Safety and Risk Management
- Occupational Health and Safety Research
- Advanced Battery Technologies Research
- Pesticide Exposure and Toxicity
- Transportation Systems and Infrastructure
- Advancements in Battery Materials
- Flame retardant materials and properties
- Lipid metabolism and biosynthesis
- Graphene research and applications
Covestro (United States)
2019
Texas A&M University
2011-2017
Mary Kay (United States)
2014-2017
Colorado School of Mines
2009-2012
Indian Institute of Technology Kanpur
2005-2009
Metal–organic frameworks (MOFs) are hybrid organic–inorganic nanoporous materials that exhibit regular crystalline lattices with relatively well-defined pore structures. Chemical functionalization of the organic linkers in structures MOFs affords facile control over size and chemical/physical properties, making attractive for a variety industrial applications including membrane-based gas separations. A wealth reports exists discussing synthesis MOFs; however, few exist MOF membranes. This...
A study of thermal runaway phenomena in Lithium-Ion Batteries (LIB) was conducted following different approaches. Risks related to are presented based on a series incidents involving overheating, fires and explosions with these batteries devices; significant cases that have occurred airplane battery cells shown. An overview the possible promoters for event is by studying compounds reactions involved. Kinetic parameter calculations were performed using Differential Scanning Calorimetry (DSC)...
Studies of proton transport in novel materials are important to enable a large array electrochemical devices. In this study, we show that heteropoly acids (HPAs) when immobilized polymer matrixes have highly mobile protons. Divinyl-11-silicotungstic acid, an HPA, was copolymerized with butyl acrylate and hexanediol diacrylate at various weight percentage loadings from 25% 85% using UV initiated polymerizations. The resultant films were tan colored flexible sheets ca. 120 μm thickness....
The effect of polymer cross-linkages on thermal degradation silica/poly (methyl methacrylate) (PMMA) nanocomposites is investigated using a single novel nanoparticle. Nanosilica surface treated with KH570, an organic treatment capable free-radical polymerisation, was used to cross-link PMMA via in situ method. Scanning electron microscopy characterise nanosilica before use, while X-ray diffraction confirmed silica well dispersed PMMA. Thermogravimetric analysis (TGA) results showed that...
This paper reports data on a number of more challenging potential direct proton exchange membrane (PEM) fuel cell fuels using standard electrode assemblies. We have demonstrated that methane, and also molecules can be conventionally catalytically dehydrogenated, produce activity in PEM cells. Methane cyclohexane electrochemically oxidized but poorly. For the first time we hydrogen storage compounds, N-ethyl-dodecahydrocarbazole, dodecahydrofluorene -as neat liquids, The high OCV shows...
Abstract We have prepared a cross‐linked polystyrene anion exchange composite membrane for the electrolysis of sodium chloride to produce hydroxide by selective removal ions. The is homogeneously modified gas phase nitration, followed amination using hydrazine hydrate, and further reaction with dichloroethane triethylamine introduce quaternary ammonium charges on it. showed that specific transport ions through its pores. performance has been evaluated in terms current efficiency power...
Effective emergency management and response require appropriate utilization of various resources as an incident evolves. This manuscript describes the information used in chemical operations how their utility evolves from initial phase to recovery event close out. The authors address hazard guidance context four different phases response: preparedness, (both ongoing), recovery, mitigation. Immediately following a incident, during response, responders often use readily available,...
Abstract A composite, clay supported carbon membrane has been synthesized by carbonization of a blend polyethylene glycol and phenol formaldehyde resin the thus obtained is characterized separation dyes. This subjected to permeability test using pure water which found be considerably higher than that reported in literature. It subsequently shown reject Acid Orange 7 dye from with rejection dependent on pressure concentration typical phenomenon observed for charged membrane. The data analyzed...
A ceramic supported cross-linked polystyrene (PS) composite membrane has been prepared from its monomers using a dual initiator system, and it chemically modified by gas-phase nitration (using NOx), amination hydrazine hydrate, quaternization dichloroethane triethylamine. The membranes (unmodified, aminated, quaternized) have used to study the rejection of chromium(VI) as function pressure, concentration, pH feed solution, which was observed be >90%. experimental results fitted space charge...
Abstract A noninterpenetrating supported carbon membrane was prepared using a resole‐type phenol‐formaldehyde resin as precursor. Amine groups were created on the through nitration NO x and used to immobilize lipase enzyme by reacting with glutaraldehyde. To maintain high activity, surface carboxylic modified immobilized thus obtained active even after 3 months of usage. The performance biphasic reactor is studied in terms amount free fatty acid produced per unit time based volume aqueous...
Effective emergency management and response require appropriate utilization of various resources as an incident evolves. This manuscript describes the information used in chemical operations how their utility evolves from initial phase to recovery event close out. The authors address hazard guidance context four different phases response: preparedness, (both ongoing), recovery, mitigation. Immediately following a incident, during response, responders often use readily available,...
Direct hydroquinone fuel cells have been studied where is oxidized to benzoquinone and the electrons released flow through external circuit generating electricity. Different catalyst systems used optimize performance of these cells. The effect temperature, pressure feed concentration on cell has studied. At 20 psi back pressure, 80 oC temperature 0.5 M for Pt/Ru oxidation an open potential 297 mV obtained. maximum current density 15 mA/cm2 at 100 observed. With increase in becomes better....
We have fabricated proton conducting films using monomers based on vinyl substituted silicotungstic acid heteropoly acids (HPAs) and acrylate co-monomers. In this work we probe the limits of system increasing weight loading HPA to 85 wt%. Although impressive conductivities can be achieved with these under hotter drier operating conditions than in conventional exchange membranes, materials mechanical limitations. show that very different film morphologies prepared whether or not is...