A5002137675- Membrane Separation and Gas Transport
- Graphene research and applications
- Membrane Separation Technologies
- Carbon Dioxide Capture Technologies
- Advancements in Battery Materials
- Covalent Organic Framework Applications
- Synthesis and properties of polymers
- Catalysts for Methane Reforming
- Metal-Organic Frameworks: Synthesis and Applications
- Muon and positron interactions and applications
- Fuel Cells and Related Materials
- Aerosol Filtration and Electrostatic Precipitation
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Membrane-based Ion Separation Techniques
- Advanced Sensor and Energy Harvesting Materials
- Catalytic Processes in Materials Science
- Advanced Battery Materials and Technologies
- Modular Robots and Swarm Intelligence
- Spacecraft and Cryogenic Technologies
- Gas Sensing Nanomaterials and Sensors
- Antibiotic Resistance in Bacteria
- Process Optimization and Integration
- Polymer Surface Interaction Studies
- Enterobacteriaceae and Cronobacter Research
National Energy Technology Laboratory
2020-2025
Defense Logistics Agency
2021-2024
University at Buffalo, State University of New York
2015-2021
Leidos (United States)
2020-2021
State University of New York
2017
Buffalo BioLabs
2017
Beijing University of Chemical Technology
2012-2014
Acid doped polybenzimidazole shows exceptionally high performance for H<sub>2</sub>/CO<sub>2</sub> separation with unprecedented selectivity of 140 at 150 °C.
This paper reports a new macromolecular design that incorporates hierarchical triptycene unit into thermally rearranged polybenzoxazole (TR-PBO) structures for highly selective and permeable gas separation membranes with great potential H2 purification CO2 removal from natural gas. We demonstrate moieties not only effectively disrupt chain packing enabling microporous structure fast mass transport, but also introduce ultrafine microporosity via the unique internal free volume intrinsic to...
Abstract Industrial membranes comprised of a thin selective layer (<100 nm) requires gutter between the and porous support to achieve high permeance for gas separation. The materials must be carefully chosen enhance overall membrane performance, i.e. , selectivity. However, experimental determination optimum properties is very challenging. Herein we address this need using three dimensional (3D) computational model systematically determine effects thickness permeability on performance. A...
Polybenzimidazole in solid state is facilely cross-linked with terephthaloyl chloride, decreasing free volume and significantly increasing membrane H<sub>2</sub>/CO<sub>2</sub>separation properties.
Abstract Mixed matrix materials (MMMs) integrating excellent processability from polymers and distinct separation properties nanofillers are of interest for membrane gas separations, they often made into freestanding films (>100 µm) to demonstrate superior properties. However, difficult fabricate thin‐film nanocomposite (TFN) membranes due interfacial incompatibility between nanofillers. Here TFN based on MMMs (as thin as 200 nm) successfully developed comprising amorphous poly(ethylene...
Functionalized 3D nanographenes with controlled electronic properties have been synthesized through a multistep organic synthesis method and are further used as promising anode materials for lithium-ion batteries, exhibiting much increased capacity (up to 950 mAh g-1 ), three times higher than that of the graphite (372 ).
Abstract Mixed matrix membranes (MMMs) comprising size‐sieving fillers dispersed in polymers exhibit diffusivity selectivity and may surpass the upper bound for gas separation, but their performance is limited by defects at polymer/filler interface. Herein, a fundamentally different approach employing highly sorptive filler that inherently less sensitive to interfacial reported. Palladium nanoparticles with extremely high H 2 sorption are polybenzimidazole loadings near percolation...
Nanoporous silica membranes exhibit excellent H2/CO2 separation properties for sustainable H2 production and CO2 capture but are prepared via complicated thermal processes above 400 °C, which prevent their scalable at a low cost. Here, we demonstrate the rapid fabrication (within 2 min) of ultrathin silica-like (∼3 nm) an oxygen plasma treatment polydimethylsiloxane-based thin-film composite 20 °C. The resulting organosilica unexpectedly permeance 280-930 GPU (1 = 3.347 × 10-10 mol m-2 s-1...
Abstract Hierarchically porous materials containing sub-nm ultramicropores with molecular sieving abilities and microcavities high gas diffusivity may realize energy-efficient membranes for separations. However, rationally designing constructing such pores into large-area enabling efficient H 2 separations remains challenging. Here, we report the synthesis utilization of hybrid carbon sieve well-controlled nano- micro-pores single zinc atoms clusters well-dispersed inside nanopores via...
Most examples of mixed-matrix membranes (MMMs) involve one type polymer and inorganic filler particle. Here, both blending MMM approaches are combined to form exceptional three-component for CO2/N2 separation. Nano-sized amino-functionalized UiO-66 is added a blend PIM-1 an ether side chain functionalized polyphosphazene (MEEP80) create series MMMs. Incorporation UiO-66-NH2 particles boosts the CO2 permeability PIM-1/MEEP80 (75:25) from 3140 up nearly 6000 Barrer, while maintaining its...
Solution-based oxidation has been widely utilized to prepare graphene oxide or nanoribbons from different carbon precursors, but some details of the exfoliation unzipping processes still remain elusive. Here, we put forward three graphitic systems for deep understanding top-down route. Based on oxidation-intercalation synergistic effect, formation mechanisms were proposed.
The accurate detection of mycobacterial species from isolates and clinical samples is important for pathogenic diagnosis treatment disease control. There an urgent need the development a rapid, simple, method. We established biochip assay system, including biochip, sample preparation apparatus, hybridization instrument, chip washing machine, laser confocal scanner equipped with interpretation software automatic diagnosis. simultaneously identified 17 common by targeting differences in 16S...
Gas permeation through ultrathin film composite (uTFC) membranes can be restricted by the pore size and porosity of porous supports, resulting in a reduction permeance. Although this geometric restriction has been demonstrated using empirical computational models, systematic experimental validation models is still lacking. This study addresses gap preparing series uTFC comprising glassy perfluoropolymers (such as Teflon AF1600 Hyflon AD80) selective layers on top commercial poly(ether...
An effective cross-linking technique allows a viscous and highly gas-permeable hydrophilic polyphosphazene to be cast as solid membrane films. By judicious blending with other polyphosphazenes improve the mechanical properties, exhibiting highest CO2 permeability (610 barrer) among combined good CO2/N2 selectivity (35) was synthesized described here. The material demonstrates performance stability after 500 h of exposure coal-fired power plant flue gas, making it attractive for use in carbon...