A5079450230- Membrane Separation and Gas Transport
- Metal-Organic Frameworks: Synthesis and Applications
- Membrane Separation Technologies
- Covalent Organic Framework Applications
- Zeolite Catalysis and Synthesis
- Graphene research and applications
- Mesoporous Materials and Catalysis
- X-ray Diffraction in Crystallography
- Carbon Nanotubes in Composites
- Nanopore and Nanochannel Transport Studies
- Muon and positron interactions and applications
- Conducting polymers and applications
- Fuel Cells and Related Materials
- Crystallization and Solubility Studies
- Advanced Sensor and Energy Harvesting Materials
- Catalytic Processes in Materials Science
- Solar-Powered Water Purification Methods
- Phase Equilibria and Thermodynamics
- Advanced ceramic materials synthesis
- Membrane-based Ion Separation Techniques
- Gas Sensing Nanomaterials and Sensors
- Chemical Synthesis and Characterization
- Copper Interconnects and Reliability
- Advanced Thermoelectric Materials and Devices
- Semiconductor materials and devices
National Taiwan University
2016-2025
Georgia Institute of Technology
2010-2014
The CO(2) adsorption characteristics of prototypical poly(ethyleneimine)/silica composite adsorbents can be drastically enhanced by altering the acid/base properties oxide support via incorporation Zr into silica support. Introduction an optimal amount resulted in a significant improvement capacity and amine efficiency under dilute (simulated flue gas) ultradilute ambient air) conditions. Adsorption experiments combined with detailed characterization thermogravimetric analysis,...
Silica supported amine materials are promising compositions that can be used to effectively remove CO(2) from large stationary sources, such as flue gas generated coal-fired power plants (ca. 10 % CO(2)) and potentially ambient air 400 ppm CO(2)). The adsorption characteristics of prototypical poly(ethyleneimine)-silica composite adsorbents significantly enhanced by altering the acid/base properties silica support heteroatom incorporation into matrix. In this study, an array...
This paper reports on the synthesis and stability of a polymorphic system metal–organic framework (MOF) composed zinc(<sc>ii</sc>) 2-methylimidazole, as well its potential applicability in gas storage.
Reactive oxygen species (ROS) are highly reactive, making them useful for environmental and health applications. Traditionally, photocatalysts piezocatalysts have been used to generate ROS, but their utilization is limited by various physical constraints. This study introduces metal-organic frameworks (MOFs) as modern thermocatalysts efficiently producing hydrogen peroxide (H 2 O ) from small temperature differences. Temperature fluctuations, abundant in daily life, offer tremendous...
The fabrication, detailed characterization, and molecular transport properties of nanocomposite membranes containing high fractions (up to 40 vol %) individually-dispersed aluminosilicate single-walled nanotubes (SWNTs) in poly(vinyl alcohol) (PVA), are reported. microstructure, SWNT dispersion, dimensions, intertubular distances within the composite characterized by scanning transmission electron microscopy (SEM TEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), XRD...
Abstract The topology and chemical functionality of metal–organic frameworks (MOFs) make them promising candidates for membrane gas separation; however, few meet the criteria industrial applications, that is, selectivity >30 CO 2 /CH 4 /N . This paper reports on a dense CAU‐10‐H MOF is exceptionally ‐selective (ideal 42 95 ). proposed also achieves highest permeability (approximately 500 Barrer) among existing pure membranes with exceeding 30. State‐of‐the‐art atomistic simulations...
Abstract Membrane‐based olefin/paraffin separations can be an attractive alternative to the current energy‐intensive cryogenic distillation for their high energy efficiency. This paper reports amine modulator‐induced defect engineering of zeolitic imidazolate framework‐8 (AZIF8) nanoparticles (60 nm) enhanced molecular sieving ability and good compatibility with various polymer matrices. It is revealed that initial suppression nuclei formation during synthesis enables modulators deprotonate...
Metal–organic frameworks (MOFs) are an emerging class of materials possessing significant potential in separation and storage applications. Identifying optimal candidates from tens thousands MOFs that have been reported is a challenging task. To this end, machine learning (ML) represents promising approach to facilitate the selection best-performing MOFs. In study, we propose scheme develop chemistry-encoded convolutional neural network (CNN) models predict gaseous adsorption properties,...
Hydrophilic metal-organic frameworks (MOFs) are promising for solar steam generation from waste or seawater. In this study, we propose a MOF-based Janus membrane efficient generation. We selected MOF-303 its hydrophilic properties and 1D channels with 6.5 Å cavity diameter, making it an excellent water-absorbing layer. Characterization via Raman spectroscopy differential scanning calorimetry indicates that the nanoconfinement within can reduce water evaporation enthalpy, thereby boosting...
Single-walled metal oxide (aluminosilicate) nanotubes are excellent candidates for addressing the long-standing issue of functionalizing nanotube interiors, due to their high surface reactivity and controllable dimensions. However, functionalization interior is impeded by its silanol density (9.1 −OH/nm2) resulting hydrophilicity. Controlled dehydration critical success efforts. We employ a range solid-state characterization tools elucidate dehydroxylation phenomena in as function heat...
A methodology for modifying the interior of single-walled metal oxide (aluminosilicate) nanotubes by covalently immobilizing organic functional entities on surface nanotube structure is reported. Characterization modified a range solid-state characterization techniques—including nitrogen physisorption, thermogravimetric analysis, transmission electron microscopy (TEM), powder X-ray diffraction (XRD), and NMR—strongly indicates that are immobilized inner reaction with silanol groups wall. The...
We demonstrate new molecular-level concepts for constructing nanoscopic metal oxide objects. First, the diameters of nanotubes are shaped with angstrom-level precision by controlling shape nanometer-scale precursors. Second, we measure (at molecular level) subtle relationships between precursor and structure final nanotube curvature. Anionic ligands used to exert fine control over shapes, allowing assembly into whose relate directly curvatures 'shaped'
Zeolitic imidazolate frameworks (ZIFs) are an emerging class of microporous materials that possess organic flexible scaffold and zeolite-like topology. The catalytic molecular-separation capabilities these have attracted considerable attention; however, crystal-shape engineering in ZIF remains its infancy. This is the first study to report effective method for tailoring near-spherical crystal morphology ZIF-8 using leaf-like pseudopolymorph, ZIF-L. A thin, uniform layer formed on ZIF-L...
Metal-organic frameworks (MOFs) hold great promise as porous materials for pervaporation applications. However, the exploration of MOF membranes in this field is still its early stages. One main challenges relatively low mass flux and stability pure compared to other used pervaporation. In study, we propose a novel approach enhance separation performance water ethanol separation. Our strategy involves incorporating 2,5-thiophenedicarboxylic acid (TDC) linker into MOF-303 structure, partially...