A5101482802- Membrane Separation and Gas Transport
- Zeolite Catalysis and Synthesis
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Graphene research and applications
- Membrane Separation Technologies
- Adaptive Control of Nonlinear Systems
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Fuel Cells and Related Materials
- Aeroelasticity and Vibration Control
- Carbon Dioxide Capture Technologies
- Chemical Synthesis and Characterization
- Asymmetric Synthesis and Catalysis
- Catalysts for Methane Reforming
- Dynamics and Control of Mechanical Systems
- Catalytic Cross-Coupling Reactions
- Stability and Control of Uncertain Systems
- Mesoporous Materials and Catalysis
- Aerospace and Aviation Technology
- Advanced Synthetic Organic Chemistry
- Cyclopropane Reaction Mechanisms
- Synthesis and characterization of novel inorganic/organometallic compounds
- Catalytic C–H Functionalization Methods
- Model Reduction and Neural Networks
Delft University of Technology
2017-2025
Nanjing Tech University
2015-2024
Beijing Institute of Petrochemical Technology
2024
University of Pittsburgh Medical Center
2024
UPMC Hillman Cancer Center
2024
Hebei University of Technology
2024
Gansu Agricultural University
2024
Northeast Agricultural University
2024
State Key Laboratory of Materials-Oriented Chemical Engineering
2023-2024
Ocean University of China
2024
Abstract It is highly desirable to reduce the membrane thickness in order maximize throughput and break trade-off limitation for membrane-based gas separation. Two-dimensional membranes composed of atomic-thick graphene or oxide nanosheets have transport pathways that are at least three orders magnitude higher than thickness, leading reduced permeation flux impaired separation throughput. Here we present nm-thick molecular sieving porous two-dimensional metal-organic nanosheets. These...
We herein report a facile preparation of graphene oxide (GO) membranes including three steps: (1) mild freeze–thaw exfoliation to get large GO nanosheets, (2) purification exfoliated nanosheets through pH adjustment, and (3) spin coating fabricate smooth with uniformly aligned nanosheets. The fabricated are subject single gas permeation tests, the obtained permeance in order He > H2 ≫ CH4 CO2 N2 SF6, indicating dominant molecular sieving separation mechanism. H2/CO2 mixed tests reveal up 3.4...
The protection effect of metal–organic framework (MOF) provides high stability for immobilized enzyme. small cavities MOFs, however, usually result in decreased apparent substrate affinity and enzymatic activity enzyme, compared to native We synthesized zeolitic imidazolate framework-8 (ZIF-8) with a combination mesoporous microporous channels cytochrome c (Cyt c) immobilization. Compared Cyt c, the displayed increased (Michaelis constant Km reduced by ∼50%), ∼128% activity, 1.4-fold...
As a clean and renewable energy source, wind power is of great significance for addressing global shortages environmental pollution. However, the uncertainty speed hinders direct use power, resulting in high proportion abandoned wind. Therefore, accurate prediction improving utilization rate energy. In this study, hybrid model proposed based on seasonal autoregressive integrated moving average (SARIMA), ensemble empirical mode decomposition (EEMD), long short-term memory (LSTM) methods....
Abstract Metal–organic frameworks (MOFs) are superior sorbents for water adsorption‐based applications. The unique step‐like isotherm at a MOF‐specific relative pressure allows easy loading and regeneration over small range of temperature conditions. With good hydrothermal stability cyclic durability, it stands out classical used in applications humidity control, harvesting, heating cooling. These easily regenerated moderate temperatures using “waste” heat or solar heating. thermodynamics...
Abstract Fabricating ultrathin covalent organic framework (COF) membranes toward high‐permeance molecular separations is highly desired yet challenging. Herein, a polyelectrolyte‐mediated assembly (PMA) strategy developed to fabricate ionic COF membrane for efficient CO 2 separation. The PMA allows facile control over the mode between polyethyleneimine (PEI) and TpPa‐SO 3 H, yielding PEI‐bridged ultra‐large nanosheets which are readily processed into with thickness down 8 nm. resulting...
The modulated synthesis of metal–organic frameworks (MOFs) remains empirical and challenging. Modulators are often applied assumed capable facilitating crystal growth by adjusting the reaction kinetics. However, most current studies based on qualitative analysis performance-leading synthesis, while no quantitative insights between modulator feature MOF performance have been offered. In this work, we carried out a comprehensive study effects three modulators (acetic acid, formic...
The development of new membranes with high H2 separation performance under industrially relevant conditions (high temperatures and pressures) is primary importance. For instance, these may facilitate the implementation energy-efficient precombustion CO2 capture or reduce energy intensity in other industrial processes such as ammonia synthesis. We report a facile synthetic protocol based on interfacial polymerization for fabrication supported benzimidazole-linked polymer that display an...
Microporous metal-organic frameworks (MOFs) as building materials for molecular sieving membranes offer unique opportunities to tuning the pore size and chemical property. The recently reported polycrystalline Zr-MOF have greatly expanded their applications from gas separation water treatment. However, Zr-MOFs are notoriously known intrinsic defects caused by ligand/cluster missing, which may affect property of membranes. Herein, we present mitigation ligand-missing in UiO-66(Zr)-(OH)2...
Molecular sieving membranes with uniform pore size are highly desired for carbon dioxide separation. All-silica zeolite feature well-defined micropores, but the size-exclusion effect is significantly compromised by non-selective macro-pores generated during detemplation. Here we propose a template modulated crystal transition (TMCT) approach to tune flexibility of Decadodecasil 3 R (DD3R) prepare ultra-selective CO2/CH4 An instantaneous overheating applied synchronize decomposition structure...
Pure-silica MFI zeolite (silicalite-1) membranes exhibit great potential in the separation of an ethanol/water mixtures. For synthesis silicalite membranes, however, conventional supports such as α-Al2O3 and mullite have aluminum element leaching out entering into a structure, which would reduce hydrophobicity layer thus affect performance for ethanol selectivity. In this paper, we prepared on hollow fiber substrates fabricated with yttria stabilized zirconia (YSZ) without aluminum. The...
We report the intergrowth of ZIF-8 crystals on ultrathin graphene oxide (GO) membranes, which helps to reduce non-selective pores pristine GO membranes leading gas selectivities as high 406, 155, and 335 for H2/CO2, H2/N2, H2/CH4 mixtures, respectively.
Abstract Detection of volatile organic compounds (VOCs) at parts-per-billion (ppb) level is one the most challenging tasks for miniature gas sensors because high requirement on sensitivity and possible interference from moisture. Herein, first time, we present a novel platform based hybrid photonic cavity with metal-organic framework (MOF) coatings VOCs detection. We have fabricated compact sensor detection limitation ranging 29 to 99 ppb various including styrene, toluene, benzene,...
The high pressure methane sorption tests on a flexible metal-organic framework [MIL-53(Al)-NH2] reveal new phase transition to large pore (lp) above 45 bar. mixed-ligand strategy and cycling are suggested reduce the requirement of such for applications in natural gas storage.
The preparation and the performance of mixed matrix membranes based on metal-organic polyhedra (MOPs) are reported. MOP fillers can be dispersed as discrete molecular units (average 9 nm in diameter) when low filler cargos used. In spite doping amount (1.6 wt %), a large enhancement permeability, aging resistance, selectivity achieved. We rationalize this effect basis surface to volume ratio filler, which leads excellent dispersion at concentrations thus alters polymer packing. Although only...
Abstract Capture and storage of the long‐lived 85 Kr is an efficient approach to mitigate emission volatile radionuclides from spent nuclear fuel reprocessing facilities. However, it challenging separate krypton (Kr) xenon (Xe) because chemical inertness similar physical properties. Herein we prepared high‐silica CHA zeolite membranes with ultra‐high selectivity irradiation stability for Kr/Xe separation. The suitable aperture size rigid framework endures membrane a strong size‐exclusion...