Articles tagged with Porous Materials
A Cornell University-led collaboration has created a new 3D printing technique that produces cellular metallic materials at supersonic speeds, resulting in mechanically robust and porous structures. These structures are 40% stronger than similar materials made with conventional manufacturing processes.
Researchers from Tohoku University developed a new method for creating MOF thin films with designable pores, opening up its use for humidity sensing, gas sensing and resistive switching devices. The 'layer-by-layer' method involves sequential immersing of substrates into ingredient solutions.
Researchers used machine learning to predict water stability in metal-organic frameworks (MOFs), accelerating the development of new materials. The model, trained on over 200 existing MOFs, enables predictions for other important properties, expanding applications in chemical separations, adsorption, and sensing.
Researchers at KAUST developed a new material that significantly improves the energy density of supercapacitors, enabling quick bursts of energy. The material uses covalent organic frameworks (COFs) with carefully selected molecular functional groups to overcome conductivity limitations.
A team of researchers at Binghamton University has created a porous polydimethylsiloxane (PDMS) material that improves the breathability and accuracy of wearable biosensors. The new material allows for sweat evaporation during exercise, maintaining high-resolution signals.
Researchers developed a Ni-MOF that can capture acetylene with extraordinary efficiency and selectively from ethylene streams. The material has a synergistic combination of tailor-made pore sizes and chemical docking sites, making it especially efficient.
The study introduces a new type of composite membrane with a polystyrene surface layer that increases its resistance to aggressive media. The developed dynamic membranes show high separation efficiency for emulsions and can be reused by replacing the contaminated surface layer, making them suitable for liquid waste treatment.
Researchers developed a new material called porous liquids that can separate gas molecules of different sizes from each other. The material has the potential to replace traditional distillation methods and save up to 80% of energy used in the plastics industry.
Researchers have developed a way to solubilize metal organic frameworks (MOFs) to create liquid-like materials. These MOF dispersions can separate gas mixtures with high efficiency and selectivity, making them suitable for industrial applications.
Scientists used dynamic in-situ x-ray diffraction to observe how a crystalline sponge changed shape as it lost water molecules. The study found that one water molecule leaves quickly, causing the crystal lattice to compress and twist, while the other two molecules leave together.
A team of scientists, including Kathryn Coyne from the University of Delaware, have developed protocols for studying the genetic underpinnings of marine algae. By analyzing the genetics of a specific species of algae that produces harmful blooms, they were able to create genetically modified strains and identify genes involved in toxin...
The study establishes a cost-effective synthetic strategy to gain highly proton-conductive porous organic polymers (POPs) with excellent conductivity of 10-2 to 10-1 S cm-1. This design offers a universal means for evolving structural design for highly proton-conductive materials.
Researchers have developed a simple bottom-up synthesis method for graphdiyne, a two-dimensional carbon network with adjustable electronic properties. The material demonstrates excellent lithium-storage capacity and stability, making it suitable for electrochemical applications.
Researchers from DGIST introduce a new post-synthetic modification (PSM) method for Metal-Organic Frameworks (MOFs), generating highly porous mesostructures. This technique enables the introduction of desired functional groups and mesoscopic holes, improving adsorption kinetics.
Researchers at TU Dresden are developing nanostructured porous carbon materials for sustainable energy applications. Prof. Qiang Xu joins the team to advance hydrogen evolution catalysis and electrical energy storage.
Magnetic ionic liquids (MIL) Emim[FeCl4] and Bmim[FeCl4] were examined at room temperature, revealing paramagnetic to antiferromagnetic behavior. A hybrid reverse Monte Carlo method combined X-ray scattering measurements with molecular simulation to reveal precise coordination structures.
Researchers from the University of Houston have reported a structural supercapacitor electrode made from reduced graphene oxide and aramid nanofiber that is stronger and more versatile than conventional carbon-based electrodes. The new material offers promise for longer battery life and higher energy at a lighter weight.
Researchers have introduced polymer molecules that mimic nature's antifreeze proteins into concrete to prevent ice crystal growth. The new concrete mix has been shown to withstand 300 freeze-thaw cycles and maintain its strength, offering a potential solution to the damage caused by freezing and thawing.
Researchers at Duke University have developed flow-through electrodes that can store hydrogen more efficiently than conventional electrolyzers. The new design increases the surface area of the electrode to allow for faster and more productive water electrolysis, with potential implications for affordable renewable energy storage.
Researchers have developed a material that can desalinate water up to 40 times faster than other materials, using electrostatic forces to attract salt ions. The porous carbon fibers have high surface areas and electrical conductivity, making them suitable for applications such as batteries and cars.
Researchers developed a hierarchically porous TiO2/rGO hybrid material, which exhibited high and stable surface area and excellent reversible capacity. The material's (001) facets facilitate Li+ insertion-extraction at low current densities, while its porosity dominates the process at high currents.
A new adsorbent material developed using PET waste bottles can remove 100% of antibiotics from water in under 90 minutes, with high reusability and stability. The material uses a high-purity organic ligand extracted from PET waste, which is a cost-effective alternative to existing methods.
Researchers at Northwestern University have developed a new material with ultrahigh porosity and surface area for storing hydrogen and methane. This breakthrough could enable the creation of more efficient fuel cell-powered vehicles by allowing for lower-pressure gas storage and reduced costs.
Researchers at KAUST have developed a new method to separate xylenes from benzene derivatives using cucurbit[7]uril, requiring no heating or elevated pressure. The process has high efficiency and low energy consumption, making it suitable for industrial implementation.
Researchers at Aalto University developed a new graphene-carbon nanotube catalyst to improve the efficiency of hydrogen fuel cells and water electrolyzers. The catalyst's electrocatalytic activity can be altered depending on the material it is deposited on, offering a promising strategy for producing green technology.
Researchers from University of Sydney have developed a method to store electricity efficiently using durian and jackfruit waste. The fruits' biomass is converted into super-capacitors that can quickly charge electronic devices, offering a sustainable alternative to fossil fuels.
Researchers at Kyoto University have successfully converted crystalline MOFs into glassy or liquid states, demonstrating porosity, ion conductivity, and optical properties. The new materials show promise for heat storage, gas permeation, and catalytic reactions.
Chenfeng Ke, an assistant professor at Dartmouth College, has been awarded the 2020 Cram Lehn Pedersen Prize for his groundbreaking work on supramolecular chemistry. His research focuses on developing dynamic systems and macroscopic machinery materials that operate cohesively at the molecular level.
Researchers found that capillary forces in graphene oxide hydrogels can be regulated by surface tension, allowing for the creation of dense yet porous materials. By using solvents with different surface tensions, the microstructure of the resulting materials can be precisely manipulated and densified.
Researchers create a novel material with different thermal conduction properties depending on direction, combining the benefits of insulation and heat dissipation. The material's unique structure allows for efficient transfer of heat within layers while blocking it perpendicular to the layers.
A new type of self-cleaning concrete has been developed by researchers, which repels dust particles and liquids, including milk and coffee. The material also boasts soundproofing and heat-insulating properties, making it an attractive option for building materials.
Chinese scientists developed a new material that enables the creation of flexible, wearable supercapacitors with high energy density. The electrodes are made from a hybrid material synthesized from two carbon nanomaterials and a metal-organic framework, which provides a balance of porosity, conductivity, and electrochemical activity.
Scientists discover that tiny holes in materials like concrete increase strength by spreading force and protecting weak zones. The phenomenon only applies where strong and weak zones are unevenly distributed, and it has the potential to predict material failure.
Researchers developed a sandwich-structured electrode using ZIF-67 to trap polysulfides, improving reaction kinetics and preventing the shuttling effect. This enhances lithium sulfur battery performance by up to three times that of traditional lithium ion batteries.
Scientists have created a durable and flexible super-water-repelling material by drawing inspiration from the spiky yet flexible skin of the porcupinefish. The material retains its water repellency after being repeatedly bent or twisted, making it suitable for applications such as self-cleaning, anti-icing, and corrosion prevention.
Researchers at Northwestern University discovered that mixing strong and weak graphene oxide flakes can create stronger paper, improving the material's durability. The finding sheds light on a general problem in materials engineering and has implications for other two-dimensional materials.
A team led by Dr. Mert Atilhan and Dr. Cafer Yavuz developed a new porous polymer that can store natural gas more effectively than current methods. This breakthrough material has the potential to reduce greenhouse gas emissions by storing cleaner-burning fuels, such as natural gas, instead of coal or oil.
Researchers from SUTD's Soft Fluidics Lab developed a new 3D printing method, immersion precipitation 3D printing (ip3DP), which allows for the fabrication of 3D porous models in one step. The porosity of the printed objects can be easily controlled by adjusting polymer concentrations and solvent types. This novel approach enables the ...
Computer simulations reveal that creep deformation can modify material properties, altering the chances of certain events occurring within the material. The researchers also found patterns in intervals between deformation events conforming to Omori law.
Scientists have taken first images of carbon dioxide molecules within a MOF, revealing the guest-host relationship and expansion of the cage as CO2 enters. This breakthrough using cryo-EM imaging demonstrates unprecedented insights into MOF chemistry and potential for separating gases.
The research team developed a system that allows for the real-time observation of MOF adsorption behavior, enabling accurate measurements and assessments of gas adsorption isotherms. By analyzing individual pore molecules, they identified a stepwise adsorption process and quantified the effects of pore structure and adsorption molecule...
Scientists have developed an adsorbent membrane that can remove pharmaceuticals and personal care products from water, a problem exacerbated by increasing use of these substances worldwide. The membrane, coated with porous aromatic frameworks, has shown high capacities for removing three model PPCPs and was recyclable.
Researchers at the University of Maryland have developed a self-cleaning solar evaporator made of wood that can efficiently produce clean drinking water from salty water. The device uses interfacial evaporation technology and minimizes maintenance needs, making it suitable for off-grid water generation in low-income countries.
Researchers at McGill University have created a new class of hypergolic fuels that are significantly cleaner and safer than current options. These fuels use metal-organic frameworks to unlock energy, offering a promising solution for the aerospace industry.
A team from Michigan Technological University has developed a new way to produce customizable nanofibers for growing cell cultures, cutting out the need for toxic solvents and chemicals. By varying electric field strengths, they can create different pocket sizes in the fibers, ideal for various cell types.
Researchers at Saarland University have developed a nanocoated metal foam process that strengthens lattice structures, producing lightweight yet extremely stable materials. These foams exhibit excellent shock-absorbing properties and can be used in various applications, including catalysis, heat shielding, and architectural designs.
Scientists developed a new hybrid bone implant combining the properties of ultra-high molecular weight polyethylene (UHMWPE) and polyetheretherketone (PEEK). The implant's unique structure allows for improved strength, elasticity, and affordability.
Guoliang Liu's lab creates uniform porous structures in carbon fibers, enabling high loading of pseudocapacitive materials like MnO2. This results in a balance between high energy density and sustained high charging and discharging rates, overcoming industry challenges.
Researchers at Hokkaido University developed a porous material that turns yellow to reddish-brown when exposed to acid vapor, returning to its original color upon removal. The material's stability is remarkable, maintaining its structure at high temperatures and resisting common organic solvents.
A team of engineers at Dartmouth College has developed a dime-sized invention that converts the kinetic energy of the heart into electricity, powering implantable devices like pacemakers and defibrillators. The new technology could potentially replace batteries with surgery, reducing complications and costs.
For the first time, researchers have created carbon fibers with uniform pores, enabling greater surface area and improved energy storage. This breakthrough, achieved using block copolymers, opens up new possibilities for designing functional materials.
A research team has developed a novel method for fabricating functional bacterial cellulose through in situ fermentation of Komagataeibacter sucrofermentans. The new approach provides environmentally friendly conditions, lower production costs, and controlled distribution of functional moieties.
Scientists at the University of Pennsylvania have developed a new material called metallic wood that has the strength of titanium but is four to five times lighter. The material's porous structure can be infused with other materials, making it suitable for applications such as plane wings or prosthetic legs that also serve as batteries.
Researchers at the University of Liverpool have synthesized a flexible crystalline porous material that can change its structure in response to its environment, mimicking the properties of proteins. This breakthrough enables the design of materials that can dynamically select the structure needed for specific tasks.
Researchers at ETH Zurich have developed porous lightweight materials that approach theoretical maximum stiffness, outperforming traditional truss-based structures. These novel plate-lattice materials are stiffer, stronger, and more efficient than their counterparts, opening up new possibilities for various applications.
Researchers observed flexible changes on crystal surfaces using real-time imaging, finding porous coordination polymer crystals can dynamically change shape when introduced to guest molecules. This property makes them attractive for developing devices that selectively adsorb gas molecules.
Researchers at RUDN University have created a new method for producing hydrogen fuel using fermented flour from Chinese bread. The process produces a porous carbon material that exhibits high electrocatalytic activity, outperforming current carbon-based catalysts and comparable to metal ones.
Researchers have discovered universal energy transfer and dissipation scaling laws in impact dynamics of dust agglomerates under microgravity conditions. The findings apply to both porous and dense clumps of dust grains, revealing a surprising level of consistency in their response to impacts.
Researchers at MIT and partners have created detailed 3D images of kerogen's internal structure, improving predictions of oil and gas recovery. The study reveals that mature kerogen has smaller pores connected by a network allowing for easier extraction.
Researchers at Tohoku University create a technique to generate large amounts of giant vesicle (liposome) dispersions using a porous silicone material. The method involves adsorbing lipids into the material and squeezing out buffer solutions, producing giant vesicles with high efficiency.