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Researchers in Israel have designed a separate-cell photoelectrochemical (PEC) water-splitting system with decoupled hydrogen and oxygen cells for centralized hydrogen production. A paper describing their system is publishedin the journal Joule. The hydrogen cell contains the cathode, and it is physically separated from the oxygen cell.
Researchers at the University of Oregon have advanced the effectiveness of the catalytic water dissociation reaction in bipolar membranes. The technology behind bipolar membranes, which are layered ion-exchange polymers sandwiching a water dissociation catalyst layer, emerged in the 1950s. —Oener et al.
The researchers combined a copper electrocatalyst with an ionomer [polymers that conduct ions and water] assembly that intersperses sulfonate-lined paths for the H 2 O with fluorocarbon channels for the CO 2. 15) with an ethylene partial current density of 1.3 amperes per square centimeter at 45% cathodic energy efficiency. Resources.
A team of researchers from North Carolina State University, SINTEF in Norway and the Norwegian University of Science and Technology, has developed a polymer membrane technology that removes carbon dioxide from mixed gases with both high permeability and high selectivity. A paper on their work is published in the journal Science.
They used natural sunlight to convert water into hydrogen and oxygen using a mixture of biological components and manmade technologies. A new paper, published in Nature Energy , outlines how the researchers at the Reisner Laboratory in Cambridge developed their platform to achieve unassisted solar-driven water-splitting. Katarzyna P.
Berkeley Lab researchers, working at the Joint Center for Artificial Photosynthesis (JCAP), have developed the first fully integrated microfluidic test-bed for evaluating and optimizing solar-driven electrochemical energy conversion systems. Segalman (2013) Integrated microfluidic test-bed for energy conversion devices.
Water (liquid or vapor) is formed at the cathode catalyst. Liquid water hydrates the membrane and increases its protonic conductivity, but may also flood the catalyst layer pores, preventing oxygen from reaching the catalyst layers. Cross-section of a unit cell. Promislow and Wetton, 2009. Click to enlarge.
Grzegorz Milczarek from Poznan University of Technology (Poland), and Olle Inganäs from Linköping University (Sweden), have combined lignin derivatives, which are electronic insulators, with polypyrole, a conductive polymer, into an interpenetrating composite suitable for use as a battery cathode. —Milczarek and Inganäs. 1215159.
Researchers at Texas A&M have developed a two-step, one-pot conversion of CO 2 and epoxides (highly reactive compounds with a three-membered ring made of two carbon atoms and one oxygen atom) to polycarbonate block copolymers that contain both water-soluble and hydrophobic regions and can aggregate into nanoparticles or micelles.
This material, a p-type (100) gallium phosphide (GaP) semiconductor functionalized with molecular hydrogen-producing cobaloxime catalysts via polymer grafting, has the potential to address one of the major challenges in the use of artificial photosynthesis to make renewable solar fuels. Earlier post.) Under simulated air mass 1.5
Twelve’s jet fuel, produced using its carbon transformation technology in partnership with Fischer-Tropsch conversion experts Emerging Fuels Technology ( earlier post ), is a fossil-free fuel that offers a drop-in replacement for petrochemical-based alternatives without any changes to existing plane design or commercial regulations.
P2G uses electrolysis of water to convert renewable energy into hydrogen, for storage and transportation to where it is needed. Polymer Electrolyte Membrane (PEM) electrolysis is seen as a highly promising conversion method, as it is reacts rapidly to power fluctuations and is highly durable.
Plant cell walls resist chemical or biological degradation, making the breakdown of lignocellulosic biomass into renewable chemical precursors for conversion into chemicals and transportation fuels challenging and costly. Co-solvents THF and water cause lignin to dissociate from itself and cellulose, expanding into a random coil.
Researchers at the University of Wisconsin-Madison have developed an innovative hydrogen-producing photoelectrochemical cell (PEC), using solar-driven biomass conversion as the anode reaction. Examples include the reduction of water to give H 2 and the reduction of CO 2 to give carbon-based fuels such as methanol and methane.
New Oil Resources’ process uses near-critical water to treat the biomass in a process commonly referred to as hydrothermal liquefaction or thermal depolymerization. The process has a small footprint, produces renewable energy and is water friendly. New Oil Resources was co-founded by Catallo and Dr. Gary Miller. Gary Miller.
In addition, since producers of oil have lots of carbon dioxide available to them, companies are interested in using that carbon dioxide as an inexpensive feedstock to make value-added chemicals, including things like polymers.” Molybdate is relatively abundant and stable in air and water. —Christopher Cummins. 2 -CO 3 )] 2?
Researchers at Stanford University have developed a new low-voltage, single-catalyst water splitter that continuously generates hydrogen and oxygen. In the reported study, the new catalyst achieved 10 mA cm −2 water-splitting current at only 1.51 V V to reach 10 mA cm −2 current (for integrated solar water splitting).
Overall, this study suggests that marine cellulases offer significant potential for utilization in high-solids industrial biomass conversion processes. To create liquid fuel from woody biomass such as wood and straw, the polysaccharides (sugar polymers) that make up the bulk of these materials have to be broken down into simple sugars.
Scientists at the US Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) have developed an enzyme that can enable the conversion of biomass to sugars up to 14 times faster and more cheaply than competing catalysts in enzyme cocktails today. CelA also works faster on raw biomass than on biomass pre-treated with chemicals.
As a result, there is a critical need to create new pathways for biofuel conversion that reduces carbon waste, prevents the loss of CO 2 emissions, and in turn, maximizes the amount of renewable fuel a conversion process yields. A Microbial Consortium Enables Complete Feedstock Conversion - $1,574,966.00. University of Delaware.
The Energy Department (DOE) recently announced $10 million, subject to appropriations, to support the launch of the HydroGEN Advanced Water Splitting Materials Consortium ( HydroGEN ). Chemical Catalysts for Bioenergy (ChemCat Bio) is dedicated to identifying and overcoming catalysis challenges for biomass conversion processes.
H2NEW includes National Renewable Energy Laboratory and Idaho National Laboratory as co-leads, and focuses on R&D to enable affordable, durable and efficient large-scale electrolyzers, which produce hydrogen from electricity and water (at both high and low temperatures). This would be coordinated with the H2NEW consortium.
Power plants strip CO 2 from flue emissions today by bubbling flue gases through organic amines in water, which bind and extract the carbon dioxide. They added diamine molecules to a magnesium-based MOF to catalyze the formation of polymer chains of CO 2 that could then be purged by flushing with a humid stream of carbon dioxide.
Theion grows a pure sulfur wafer by a Direct Crystal Imprinting (DCi) method (no slurry coating, no solvents, no water, no drying) directly from molten sulfur in a few seconds. Theion removes nearly all volumetric fluctuation of sulfur at wafer level by a special conversion process; the cathode is able to work at low porosity.
A team from the Ruhr-Universität Bochum, Technische Universität München and Universiteit Leiden has doubled the catalytic activity of electrodes for water electrolysis by applying a monolayer of copper the platinum electrodes. Modern polymer electrolyte membrane (PEM) electrolyzers thus require larger platinum loadings (~0.5–1.0
CTV is developing proprietary technology and catalysts for the conversion of lignin into hydrocarbon components for transportation fuels. The presence of carbon monoxide in the syngas can assist with the conversion of lignin, and the observed effect is similar to that seen for coal hydroprocessing with syngas compared to hydrogen alone.
Polypropylene is a major polymer used in key applications, including medical devices like syringes and IV bags, automotive, furniture, textiles, and other durable products. This approach is highly scalable and could ultimately produce ethanol at an industrial scale, while simultaneously eliminating CO 2 emissions.
Ignite Energy Resources supercritical water process diagram. IER’s proprietary supercritical water technology (SCW) transforms low-ranked coals, including lignite, directly into higher-valued oils and cleaner coal products. Source: IER. Click to enlarge. not via an indirect pathway (gasification) as in Fischer-Tropsch processes.
The findings could spur progress on developing a variety of materials and designs for electrochemical carbon dioxide conversion systems. There are several ways to do such conversions, including electrochemical, thermocatalytic, photothermal, or photochemical processes—each with their own problems or challenges.
Fuel cells, especially polymer electrolyte membrane fuel cells (PEMFC), are already used in hydrogen-powered automobiles. General recycling processes for precious metals that are currently in use are also designed for these metals, in which polymer electrolyte membrane fuel cells are currently largely processed.
Pyrolysis bio-oils are produced by the thermal decomposition of biomass by heating in the absence of oxygen at more than 500 °C; fast pyrolysis of biomass is much less expensive than biomass conversion technologies based on gasification or fermentation processes. The gasoline-range alcohols can be high-octane gasoline additives.
LanzaTech and Petronas will work together to extend this technology to include CO 2 -containing gases from a variety of sources—including refinery off-gases and natural gas wells—to produce acetic acid, a high-value chemical with applications in the polymers and plastics markets. LanzaTech conceptual gas-to-liquids platform.
However, HFOs are banned in the national waters of many countries. In addition, the International Maritime Organization (IMO) is seeking to ban HFO use in Arctic waters. Although cleaner fuels are available, many companies opt for HFOs due to their low cost.
The Precourt Institute for Energy, the umbrella organization for energy research and education at Stanford, will fund the following four studies: Nanostructured Polymers for High-Performance Batteries. This project explores the use of specially designed nanostructured polymers to make high-energy, low-cost, flexible and stretchable batteries.
If hydrogen production is to be distributed and produced in small-scale devices, it would be attractive if the subsequent conversion of H 2 into a liquid fuel could also be performed in simpler, low-pressure decentralized units. Carbon Capture and Conversion (CCC) Catalysts Methanol' —Studt et al.
This study suggests that Synechocystis , expressing the modified efe gene, has potential to be an efficient biological catalyst for the uptake and conversion of CO 2 to ethylene. Conversely, the process recycles carbon dioxide, a greenhouse gas, since the organism utilizes the gas as part of its metabolic cycle. —Ungerer et al.
The complete Blue World system includes the fuel cell stack, the methanol reformer, heat-exchanger, power conversion units and a set of power and operation controllers, and balance of plant. Methanol reforming converts a mix of methanol and water into a hydrogen-rich gas. The MEA is one of the core components in a fuel cell stack.
The intellectual property from Febit will strengthen and accelerate SGI’s ongoing development and commercialization of a variety of products including algae-based food and nutritional products, biofuels, biochemicals, synthetic vaccines and clean water. Craig Venter, Ph.D., Founder and CEO, SGI. SGVI), a company co-founded with the J.
earlier post ) has completed testing of an electric vehicle (EV) conversion solution on Kia’s “Morning” car model. Leo’s conversion solution can be used in any type of small to midsize vehicle platform (2,000 cc engines or below), for any manufacturer. Korea-based Leo Motors , Inc.
Furthermore, Eni and Pertamina agreed to explore and discuss collaboration in the field of recycle and re-use: water treatment and re-use processes and polymer recycling technologies, also pursuing eco-design processes to maximize final products recycle.
Past themes have included topics as diverse as the role of big data and the energy-water nexus. These novel materials will unite the well-controlled physical properties of polymers with the promising functional properties of metal-facilitated self-assembly. MITEI received a total of 49 proposals from across the Institute.
Researchers at UC Berkeley have developed an artificial photosynthetic scheme for the direct solar-powered production of value-added chemicals from CO 2 and water using a two-step process involving a biocompatible light-capturing nanowire array with a direct interface with microbial systems. —Liu et al.
The prohibitive cost of platinum for catalyzing the ORR has hampered the widespread use of polymer electrolyte fuel cells. Inefficient conversion of the fuels, which generates hydrogen peroxide, can reduce power output by up to 50%, and also has the potential to destroy fuel cell membranes.
Novel Polymer-enhanced Rechargeable Aluminum-Alkaline Battery Technology – $2,000,000. At the center of Ionic Materials’ innovation is a new polymer-based material that suppresses the formation of unwanted chemical products that prevent aluminum-alkaline batteries from recharging. Ionic Materials, Inc. Sila Nanotechnologies, Inc.
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