A5076928303- Nanopore and Nanochannel Transport Studies
- Advanced battery technologies research
- Membrane Separation and Gas Transport
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Membrane Separation Technologies
- Advanced Battery Materials and Technologies
- Graphene research and applications
- Advancements in Battery Materials
- Carbon Dioxide Capture Technologies
- Advanced Battery Technologies Research
- Zeolite Catalysis and Synthesis
- Covalent Organic Framework Applications
- Muon and positron interactions and applications
- Electronic Packaging and Soldering Technologies
- Extraction and Separation Processes
- 3D IC and TSV technologies
- Antimicrobial agents and applications
- Oxidative Organic Chemistry Reactions
- Advanced ceramic materials synthesis
- Molecular Junctions and Nanostructures
- Power Systems and Renewable Energy
- Transition Metal Oxide Nanomaterials
- Industrial Gas Emission Control
- Parvovirus B19 Infection Studies
University of Illinois Chicago
2017-2024
Kangwon National University
2021-2023
University of Illinois System
2020
Lawrence Livermore National Laboratory
2019
University of Pittsburgh
2018
University of Cincinnati
2005-2009
Virginia Tech
2006-2008
Soka University
2007
Four different types of amine-attached MCM-48 silicas were prepared and investigated for CO2 separation from N2. Monomeric polymeric hindered unhindered amines attached to the pore surface silica characterized with respect their sorption properties. The structures amino group content in these modified by XRD, FT-IR, TGA, N2 adsorption/desorption at 77 K CHN/Si analysis, which confirmed that all cases groups 1.5−5.2 mmol/g. analysis showed a considerable decrease volume area containing amine...
A mesoporous MCM-48 silica was synthesized by a templating method and mixed with polysulfone (PSF) to fabricate matrix membranes (MMMs). Helium permeation data SEM images of as-synthesized MCM-48/PSF MMMs suggest that particles adhered well the PSF were defect free. Gas tests indicated increases in permeability resulted from solubility as diffusivity. The transport properties for all tested gases make an attractive additive enhancing gas without sacrificing selectivity.
Abstract Recent studies of the high energy‐conversion efficiency nanofluidic platform have revealed enormous potential for efficient exploitation electrokinetic phenomena in nanoporous membranes clean‐energy harvesting from salinity gradients. Here, reverse electrodialysis (NF‐RED) consisting vertically aligned boron‐nitride‐nanopore (VA‐BNNP) is presented, which can efficiently harness osmotic power. The power density VA‐BNNP reaches up to 105 W m −2 , several orders magnitude higher than...
Abstract 2D layered nanomaterials have attracted considerable attention for their potential highly efficient separations, among other applications. Here, a lamellar membrane synthesized using hexagonal boron nitride nanoflakes (h‐BNF) ion separation is reported. The ion‐rejection performance and the water permeance of as function ionic radius, valance, solution pH are investigated. nonfunctionalized h‐BNF membranes show excellent rejection small sized salt ions well anionic dyes (>97%)...
Ordered mesoporous MCM-48 membranes with cubic pore structure were prepared by the solution growth method on symmetric α-alumina supports using cetyltrimethylammonium bromide as a surfactant. The surfactant was removed Soxhlet extraction an ethanol/HCl mixture to synthesize defect-free confirmed N2 unsteady-state permeation. and powders successfully modified polymer, polyethyleneimine (PEI) containing amino groups adsorption−desorption data, X-ray diffraction, Thermo gravimetric analysis...
Novel ion exchange membrane with just the right width of selective aqueous ionic domain (<0.6 nm) and unique functionalities show extraordinary selectivity. These transport properties our is reflected in a remarkable flow battery performance.
The separation of plasma from blood cells in whole is an essential step for many diagnostic and therapeutic applications. However, the current point-of-care approaches have not yet satisfied need a rapid, high-flux, low-cost process. Here, we report portable, low-cost, disposable membrane-based device that enables rapid extraction blood. Rapid can be obtained with simple three-step operation: injection, separation, collection. Our benefits zwitterionic polyurethane-modified cellulose acetate...
Abstract A carbon nanotubes (CNTs) reinforced Nafion membrane (CNT/N) with reduced interfacial resistance was prepared and served as a promising ion exchange for vanadium redox flow batteries (VRFBs). The reinforcement of CNT effectively enhanced the tensile properties membranes. electrochemical CNT/N were analyzed by impedance spectroscopy (EIS) fitted an analytical model to investigate ionic resistances. EIS measurement reveals that exposed on composite surface significantly membrane. VRFB...
Plasma separation from whole blood is oftent required as an essential first step when performing tests with a viral assay. However, developing point-of-care plasma extraction device large output and high virus recovery remains significant obstacle to the success of on-site load tests. Here, we report portable, easy-to-use, cost-efficient, membrane-filtration-based that enables rapid large-volume blood, designed for assays. The realized by low-fouling zwitterionic polyurethane-modified...
The power generation sector is one of the largest sources greenhouse gas emissions in South Korea. Reducing this therefore crucial importance. government has recently released its core energy policy objectives: elimination coal-fired generation, phase-out nuclear plants, and promotion renewable sources. This should be consistent with national climate change response policy. paper analyzed optimum structure based on Korean government’s then if reduction targets were different. Seven scenarios...
Thermoplastic elastomers are widely used in the medical industry for advanced and healthcare products, helping millions of patients achieve a better quality life. Yet, microbial contamination material-associated biofilms on devices remain critical challenge because it is challenging currently available materials to provide antifouling properties, thermoplasticity, elastic properties simultaneously. We developed highly flexible zwitterionic thermoplastic polyurethane with properties. A series...
We report on anomalous transport of ions in solution through macroscopic arrays vertically aligned, surface-charged boron-nitride nanotubes (BNNTs). The 3- and 12nm-diameter BNNTs revealed two atypical phenomena: (i) ultra-fast cation-selective diffusion under concentration gradients that exceeded Fickian by up to 31-fold (ii) relative rates ionic conductances for alkali-metal (K+, Na+, Li+) were opposite the ordering their bulk mobilities solution, also different from observed carbon 2D...
ADVERTISEMENT RETURN TO ISSUEPREVCorrespondenceComments on the Origins of N2/CO2 Selectivity Gas Separation MembranesParveen Kumar, Sangil Kim, Junichi Ida, and Vadim V. Guliants*View Author Information Department Chemical Materials Engineering, University Cincinnati, Ohio 45221-0012* To whom correspondence should be addressed. E-mail: [email protected]Cite this: Ind. Eng. Chem. Res. 2009, 48, 7, 3702Publication Date (Web):March 3, 2009Publication History Published online3 March...