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A study by a team of researchers from Technische Universität Berlin (TUB) and Fritz-Haber-Institut der Max-Planck-Gesellschaft has found that direct seawater splitting for hydrogen production has substantial drawbacks compared to conventional water splitting and offers almost no advantage. Additionally, H 2 O is needed for water splitting.
Researchers at the University of Southampton have transformed optical fibers into photocatalytic microreactors that convert water into hydrogen fuel using solar energy. Alongside hydrogen generation from water, the multi-disciplinary research team is investigating photochemical conversion of carbon dioxide into synthetic fuel.
The nanostructured photoelectrode results in spontaneous hydrogen evolution from water without any external bias applied with a faradaic efficiency of 30% and excellent stability. One way this could be achieved is by using photoelectrochemical (PEC) water splitting which directly converts water and sunlight to solar fuel (hydrogen).
Audi’s latest e-fuels project is participation in a a pilot plant project in Dresden that produces diesel fuel from water, CO 2 and green electricity. The sunfire plant, which operates according to the “power-to-liquid” (PtL) principle, requires carbon dioxide, water and electricity as raw materials.
The optimized photo-electrochemical water splitting device uses light absorbers made of silicon arranged in closely packed pillars, dotted with tiny clusters of the new molybdenum sulfide catalyst. An alternative, clean method is to make hydrogen fuel from sunlight and water via a photo-electrochemical (PEC, or water-splitting) process.
Researchers at UC Santa Barbara have developed an efficient, autonomous solar water-splitting device based on a gold nanorod array in which essentially all charge carriers involved in the oxidation and reduction steps arise from the hot electrons resulting from the excitation of surface plasmons in the nanostructured gold (plasmonic water-splitter).
Researchers from the University of Twente in The Netherlands have developed a new high-entropy perovskite oxide (HEO) as a high-activity electrocatalyst for the oxygen evolution reaction (OER)—the key kinetically limiting half-reaction in several electrochemical energy conversion technologies, including green hydrogen generation.
The hybrid power conversion will be carried out on the Maersk Minder , a deep-water anchor-handling tug-supply (AHTS) vessel during the early part of 2022. This is believed to be the world’s first AHTS hybrid battery conversion. The order with Wärtsilä was placed in May 2021.
Designing an artificial leaf that uses solar energy to convert water cheaply and efficiently into hydrogen and oxygen is one of the goals of BISfuel (Bio-inspired Solar fuel production)—the Energy Frontier Research Center, funded by the Department of Energy, in the Department of Chemistry and Biochemistry at Arizona State University.
The catalyst requires the presence of water, allowing producers to use dilute—i.e., With increased availability and reduced cost of bio-ethanol, conversion of this particular bio-based feedstock to highly valuable fuels and chemicals has been an especially important research goal. doi: 10.1021/ja204235v.
Researchers from the US Department of Energy’s (DOE) Argonne National Laboratory have combined two membrane-bound protein complexes to perform a complete conversion of water molecules to hydrogen and oxygen. This part of the reaction, however, represents only half of the overall process needed for hydrogen generation.
The material then readily strips oxygen atoms from carbon dioxide and water, forming CO and hydrogen, respectively, which are combined to create fuels. The design of the reactor exposes porous ceria directly to concentrated solar radiation, heating it to between 1,420 and 1,640 °C, thereby liberating oxygen from its lattice.
With efficiencies above 90%, Topsoe’s proprietary SOEC electrolyzers offer superior performance in electrolysis of water into hydrogen—e.g., Solid oxide electrolysis cell (SOEC) technology is attractive because of unrivaled conversion efficiencies—a result of favorable thermodynamics and kinetics at higher operating temperatures.
-Fe 2 O 3 (hematite) electrodes that achieve the highest photocurrent of any metal oxide photoanode for photoelectrochemical water-splitting under 100?mW?cm Batteries, fuel cells and solar-energy conversion devices have emerged as a class of important technologies that increasingly rely on electrodes derived from nanoparticles.
Evonik and Siemens Energy commissioned a pilot plant—sponsored by the German Federal Ministry of Education and Research (BMBF)—that uses carbon dioxide and water to produce chemicals. It consists of a CO electrolyzer, developed by Siemens Energy, a water electrolyzer and the bioreactor with Evonik’s know-how.
By using a water-lean post-combustion capture solvent, (N-(2-ethoxyethyl)-3-morpholinopropan-1-amine) (2-EEMPA), they achieved a greater than 90% conversion of captured CO 2 to hydrocarbons—mostly methane—in the presence of a heterogenous Ru catalyst under relatively mild reaction conditions (170 °C and 2 pressure).
A transparent film of copper nanowires was transformed into an electrocatalyst for water oxidation by electrodeposition of Ni or Co onto the surface of the nanowires. Water oxidation (2H 2 O → O 2 + 4 e- + 4H + ) is a key step for converting solar energy into chemical fuels. Chen et al. Click to enlarge. A team led by Benjamin J.
The new PNNL carbon capture and conversion system brings the cost to capture CO 2 down to about $39 per metric ton. This is the first known demonstration of integrated low-temperature thermocatalytic capture and conversion of CO 2 to methanol in an economically viable CO 2 capture solvent. gal ($470/metric ton), is presented.
In a first step, this hydrogen is to substitute part of the carbon in the existing blast furnaces, later on it is to be used in new direct reduction plants. In the next few years, the company expects the conversion of one blast furnace to result in an annual demand of around 20,000 tonnes of green hydrogen.
While Ni metal catalyzes the hydrogen evolution reaction (HER) exclusively under CO 2 RR conditions, Ni single atomic sites present a high CO selectivity of 95% under an overpotential of 550 mV in water, and an excellent stability over 20 hours’ continuous electrolysis. The current density can be scaled up to more than 50 mA cm?2
The company’s patented technology allows the production of renewable hydrogen as well as the direct conversion of water and CO 2 into raw material for petrochemical products. As part of Neste’s growth strategy, we continue to focus on innovation with the aim to develop the existing businesses and build new growth business platforms.
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.
Researchers at the University of Rochester (New York) have developed a robust and highly active system for solar hydrogen generation in water using semiconductor nanocrystals (NCs) and a nickel catalyst. The nanocrystals were capped with DHLA (dihydrolipoic acid) to make them water-soluble. for light-to-chemical energy conversion.
Researchers in Canada have demonstrated a new photochemical diode artificial photosynthesis system that can enable efficient, unassisted overall pure water splitting without using any sacrificial reagent. overall water splitting reaction. In part of the visible spectrum (400–485?nm), in neutral (pH?~?7.0) Chowdhury et al.
Nel Hydrogen Electrolyser AS, a division of Nel ASA, has received a purchase order for a 20MW alkaline water electrolyzer from Ovako , a leading European manufacturer of engineering steel. The conversion to hydrogen will enable Ovako to reduce its CO 2 emissions for steel production in Hofors by 50%.
of the online tool Water Assessment for Transportation Energy Resources ( WATER ) this week. This latest version of WATER allows, for the first time, biofuels manufacturers to analyze water consumption associated with use of cellulosic feedstocks such as residue left from lumber production and other wood-based resources.
These include electricity and heating for remote communities and islands, industrial sites, data centers, universities, defense facilities, marine propulsion, hydrogen generation and water purification. The heat pipes also enable operation at higher temperatures, enabling higher efficient power conversion systems and high-grade process heat.
The primary goal of this funding opportunity ( DE-FOA-0000949 ) is to provide disruptive new solar conversion and storage technology options to enable a much higher penetration of solar energy generation into the US energy mix. Concentrating solar power (CSP), solar heating and solar hot water applications combined contribute less than 0.1%
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. —García de Arquer. Resources. Pelayo García de Arquer et al. Science Vol. 367, Issue 6478, pp.
The first new outer skin parts for the ID. And the new press shop is an important milestone on our “Way To Zero” journey, through which we are aiming to reduce the environmental impact of our production by 2025 in areas such as energy usage, CO 2 emissions, waste and the use of water by 45% per vehicle compared with the baseline year 2010.
Here, two SCR catalytic converters work together to split nitrogen oxides into water and nitrogen using AdBlue urea solution. It features a two-part design and, depending on the vehicle concept, has a volume of 2.5 As previously, the 2.0 Volkswagen developed twin dosing technology for the exhaust gas treatment.
The chassis consists of flax, recycled PET and PP coming straight out of the ocean, the seat cushions are made coconut fiber and horsehair, and the front and rear parts of the chassis are made out of a tube frame from recycled aluminum. Luca is made of materials that are normally thrown away. Luca is designed to be highly energy-efficient.
The home is also three times more water-efficient than a typical US home. kW solar photovoltaic (PV) system mounted on the roof will generate more energy than the home and Fit EV consume on an annual basis, due in large part to the efficient design of the home. Water efficiency. Photo by Dorian Toy. Click to enlarge.
million) to help develop innovative storage solutions for energy, as part of the £21-million (US$32.6 Up to £40,000 (US$62,160) was made available to cover parts of the costs of developing a detailed feasibility study for a 1MW power-to-gas facility to be built in the UK starting in the second half of 2013.
The ultimate goal is to eliminate carbon dioxide emissions from the process by fully using fossil-free inputs and fossil-free energy in all parts of the value chain. With SSAB’s conversion, we will reduce carbon dioxide emissions by 10 percent in Sweden and 7 percent in Finland. It also creates jobs and export successes.
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.
Researchers at Rice have demonstrated an efficient new way to use solar energy for water splitting. Structure and mechanism of operation of plasmonic photocathode for plasmon-mediated direct electron injection to drive solar-to-chemical energy conversion. (a) b) Energy schematic of the structure. —Robatjazi et al.
As part of a White House roundtable to launch the Sustainable Aviation Fuels (SAF) Grand Challenge to decarbonize the aviation sector by 2050 ( earlier post ), the US Department of Energy (DOE) announced $64.7 Affordable, Clean Cellulosic Sugars for High Yield Conversion. Separations to Enable Biomass Conversion.
The conversion of methanol to hydrocarbons and water is virtually complete and essentially stoichiometric in the MTG process. The reaction is exothermic with the reaction heat managed by splitting the conversion in two parts. Most of the hydrocarbon product boils in the gasoline boiling range.
Overall, this study suggests that marine cellulases offer significant potential for utilization in high-solids industrial biomass conversion processes. In particular, the gribble cellulase is extremely resistant to aggressive chemical environments and can work in conditions seven times saltier than sea water. —Kern et al.
Preliminary extractives analysis demonstrates that most of the salt can be removed by controlling two factors; firstly time of the initial washing and secondly, salinity of the water being used. Waste seawater from a fish and shrimp farm will nourish the halophytes that clean the water as they grow. bigelovii. Earlier post.).
The open-access paper is published in the journal Energy Conversion and Management: X. Given that renewable electricity, for example, excess wind power, can be transformed into hydrogen, there is some optimism that the hydrogen economy will form a fundamental part of a clean and sustainable future. doi: 10.1016/j.ecmx.2019.100016.
The US Department of Energy (DOE) is awarding $35 million to 11 projects as part of the Advanced Research Projects Agency-Energy’s (ARPA-E) Submarine Hydrokinetic And Riverine Kilo-megawatt Systems (SHARKS) program. SHARKS teams will develop new economically competitive Hydrokinetic Turbines (HKT) designs for tidal and riverine currents.
As part of the agreement, Hyzon is acquiring a minority interest in Raven SR. This permits the control of the rotary reformer when there is water content or chemical makeup variation in the feedstock, such as in MSW. Raven SR , a renewable fuels company, and Hyzon Motors Inc., C) at the front up to 1,200°F at the exit end.
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