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Both half reactions of water electrolysis—hydrogen and oxygen evolution—are unfortunately slow and require a lot of power. The material can be used as either an anode or a cathode, and demonstrates high activity and stability in the production of hydrogen and oxygen in the electrolysis of water. Zhang, S.L., and Lou, X.W.
Researchers at the University of Southampton have transformed optical fibers into photocatalytic microreactors that convert water into hydrogen fuel using solar energy. Zepler Institute, University of Southampton. Computerized tomography of a MOFC, showing buildup of TiO 2 (light blue particles) in the triangular channels.
When in use, fuel cells do not cause any climate-damaging emissions, as they only emit water vapor. Cooperation with universities is also planned. MAN plans to build prototype vehicles as early as next year in line with the currently ongoing development projects. MAN is testing both the use of a fuel cell and an H 2 combustion engine.
All the technologies involved—from water electrolysis to CO 2 extraction and methanation—have been examined and enhanced. The picture shows the test bench with the single-cylinder engine at the Technical University of Munich. The MethanFuel group is researching into new processes for manufacturing methane out of renewables.
The mesh with BiVO 4 nanowire photoanode for water oxidation and Rh-SrTiO 3 nanowire photocathode for water reduction produces hydrogen gas without an electron mediator. When immersed in water with visible light irradiation (? ? In the present study, we developed a new architecture for direct solar water-splitting.
Conventional water electrolysis for the production of hydrogen faces technological challenges to improve the efficiency of the water-splitting reaction for the sluggish oxygen evolution reaction (OER). Oxygen and hydrogen are generated during a water electrolysis reaction (top right). Credit IBS.
A study by three French institutes—Ifremer, the University of Bordeaux and the IRD (a public research institution)—has found that the surface water of the Atlantic Ocean is twice as polluted by cellulose fibers as it is by microplastics. Cellulose fibers are present in virtually all the samples collected (92.5%
Researchers at Wakayama University in Japan have produced a mixture of hydrogen and carbon monoxide gas by irradiating a mixture of carbon powder and distilled water with intense nanosecond laser pulses at room temperature. The carbon or charcoal powders were dispersed in distilled water at a ratio of 25.8 mL volume of water.
One-pot electrolytic process produces H 2 and solid carbon from water and CO 2. In this study, they focused on the electrolysis component for STEP fuel, producing hydrogen and graphitic carbon from water and carbon dioxide. 2014), “A One-Pot Synthesis of Hydrogen and Carbon Fuels from Water and Carbon Dioxide,” Adv.
Researchers at the University of Oklahoma, in collaboration with the University of Tulsa, have a novel approach for the water-assisted upgrading of the renewable chemical furfural, doubling or tripling the rate of conversion. Energy and water are interconnected in the production of renewable fuels. —Zhao et al.
A team of scientists from six institutions, including Akihiro Moriyoshi, Emeritus Professor Hokkaido University, have found that the presence of Trace Quantities of Organic Matter (TQOM) in modern concrete structures and asphalt pavements drive the deterioration of these structures. CT scans showing cracks in damaged concrete.
Here we present quantitative geochemical sea surface temperature estimates from the Miocene mid-latitude North Pacific Ocean, and show that oceanic warmth persisted throughout the interval of low pco 2 ~12–5 Myr ago. Ratios of the compound preserve a record of the water temperature in which the plankton lived. —LaRiviere et al.
nuclear and fossil-fueled generating units) in Europe and the United States are vulnerable to climate change due to the combined impacts of lower summer river flows and higher river water temperatures. Compared to other water use sectors (e.g. A study published in Nature Climate Change suggests that thermoelectric power plants (i.e.,
A new study, led by academics at St John’s College, University of Cambridge, has used semi-artificial photosynthesis to explore new ways to produce and store solar energy. They used natural sunlight to convert water into hydrogen and oxygen using a mixture of biological components and manmade technologies. Katarzyna P.
Researchers at the University of Oxford have developed a method to convert CO 2 directly into aviation fuel using a novel, inexpensive iron-based catalyst. These are important raw materials for the petrochemical industry and are presently also only obtained from fossil crude oil. The final product is usually a crystallized material.
Bitumen production from the Canadian oil sands provides a point of reference that could be used to observe and better manage the land and water impacts of a rapid transition to unconventional fuels, suggests Dr. Sarah Jordaan of the Energy Technology Innovation Policy Research Group, Department of Earth and Planetary Sciences, Harvard University.
A team from the National University of Singapore's Nanoscience and Nanotechnology Initiative (NUSNNI), led by principle investigator Dr. Xian Ning Xie, has developed a polystyrene membrane-based supercapacitor that they say will be easier to scale up than the current alternatives. Click to enlarge.
-Fe 2 O 3 (hematite) electrodes that achieve the highest photocurrent of any metal oxide photoanode for photoelectrochemical water-splitting under 100?mW?cm Warren, first author, now at the University of North Carolina at Chapel Hill. 2 air mass, 1.5 global sunlight. A paper on their work is published in the journal Nature Materials.
The Audi Environmental Foundation is developing filters for urban runoff in conjunction with the Technical University of Berlin (TUB). The filters prevent tire wear particles and other environmentally harmful substances from being washed into sewers and bodies of water along with rainwater.
University of Kentucky Chemistry Professor Marcelo Guzman has received a three-year grant from the National Science Foundation (NSF) for research, education and outreach efforts in the field of environmental and atmospheric chemistry. Both types of emissions cause tiny particles to be suspended in air.
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. These free charges split water molecules into hydrogen and oxygen. … in neutral (pH?~?7.0)
Researchers at the University of Michigan, McGill University and McMaster University have developed a binary copper?iron The work, presented in a paper in Proceedings of the National Academy of Sciences (PNAS), offers a unique, highly efficient, and inexpensive route for solar fuels synthesis. Image credit: Baowen Zhou.
A team from the University of Houston and Hunan Normal University in China has developed an active and durable oxygen evolution reaction (OER) catalyst for water splitting that meets commercial crtieria for current densities at low overpotentials. to deliver 200 mA cm -2 , unsatisfactory for the commercial requirements of 1.8-2.4
The University of Michigan. The University of Michigan proposes the RAFT concept as a solution for hydrokinetic energy harvesting. University of Washington. The bottom, sides, and surface of rivers and tidal channels confine water flow, which significantly alters the operation of river and tidal turbines.
Scientists at the University Claude Bernard Lyon have discovered a simple process for producing copious volumes of hydrogen. The researchers will present a paper on the discovery at the American Geophysical Union’s annual Fall Meeting in San Francisco this week.
The contest, hosted by the California Higher Education Sustainability Conference, recognizes achievements in energy efficiency and sustainability at colleges and universities across California. Cal State LA representatives will present on the winning program at the conference on 9 July at UC Santa Barbara. for each additional hour.
In working to elucidate the chemistry of hydrodeoxygenation (HDO) for the catalytic upgrading of pyrolytic bio-oil to fuel-grade products, researchers at Pacific Northwest National Laboratory (PNNL) have discovered that water in the conversion process helps form an impurity which, in turn, slows down key chemical reactions.
Researchers at the University of Surrey (UK) are developing a process to capture carbon dioxide directly from the air and then use dynamic catalysis to create methanol—a valuable chemical that, made this way, could be carbon-negative. —Dr Melis Duyar, project lead from the University of Surrey.
Water is formed as a by-product. If water is removed from the reaction mixture, the chemical equilibrium shifts towards the product. To remove water, Empa researchers use zeolite, a water-absorbing mineral. Unfortunately, at present the process is not yet very efficient. —Andreas Borgschulte.
Researchers from Sun-Yat Sen University in China report in an open-access paper in ACS ES&T Engineering the development of a catalyst that destroys medications and other compounds already present in wastewater to generate hydrogen fuel, getting rid of a contaminant while producing something useful. —Wu et al. ACS EST Eng.
The United States depends on other countries for nearly all its lithium supply and mining the mineral strains water resources and can harm the environment. Using brines already produced by geothermal energy presents a solution because it is an environmentally friendly process that yields lithium.
The hybrid energy storage device comprises a low-cost, activated carbon anode, a Manganese oxide cathode (MnO 2 ), and an electrolyte consisting of Na 2 SO 4 in water (~1 M). Aquion spun out of Carnegie Mellon University in 2010. Aquion Technical Presentation. Click to enlarge.
The Presidential Green Chemistry Challenge Awards are presented in five categories: academic, small business, greener synthetic pathways, greener reaction conditions and designing greener chemicals. In the academic category, Professor Richard Wool, University of Delaware, Newark, Del. Cargill, Inc.
In addition to the kinetic colliding jet injectors, Nostrum will showcase a direct in-cylinder water injector and intake track water injector, plus its dilute combustion system, the “Nostrum Cycle”, at Engine Expo – Novi 2015. LTG and LHU model codes), high-flow, K-DI fuel injector at the SEMA Show 2015. Click to enlarge.
One of its molecular mysteries of photosynthesis involves how the photosystem II protein complex harvests energy from sunlight and uses it to split water into hydrogen and oxygen. Zeroing in on water-splitting. Previously, the resting state of photosystem II had been seen in detail using samples that were frozen.
Professor George Miley of the University of Illinois Urbana-Champaign and director of its Fusion Studies Lab, reported on progress toward a “cold fusion battery”—a small power unit that uses a low energy nuclear reaction (LENR) (i.e., The process is created by purposely creating defects in the metal electrode of the cell.
The researchers are presenting this work at the Goldschmidt Geochemistry Conference in Barcelona this week. This heat causes the nearby hydrocarbons—and any surrounding water molecules—to break apart (thermolysis).Thermolysis, Proton Technologies is commercializing the process. —Grant Strem.
Researchers at the University of Calgary are developing ultra-dispersed (UD) nanocatalysts for the in situ upgrading of heavy oil and bitumen from deep reservoirs. The present work holds great promise for in situ heavy oil upgrading and recovery. Credit: ACS, Hashemi et al. Click to enlarge. sufficient temperature and pressure).
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).
Researchers at the Technical University of Munich (TUM) and partners will present their new prototype of an electric four-wheel drive utility vehicle designed for Africa—the aCar — at the International Motor Show (IAA) in Frankfurt next month. to set up a mobile physician’s office or a water treatment station.
Energetics Technology Center will build upon past successes with co-deposition experiments using palladium, lithium, and heavy water together to create an environment in which LENR can occur. Stanford University. Stanford University will explore a technical solution based on LENR-active nanoparticles and gaseous deuterium.
Existing water-splitting methods rely on highly purified water—a precious resource and costly to produce. Hongjie Dai and his research lab at Stanford University have developed a prototype that can generate hydrogen fuel from seawater. Image credit: Courtesy of H. Dai, Yun Kuang, Michael Kenney). —Kuang et al.
Researchers at Mississippi State University are developing technology that would alert pipeline managers about leaks as soon as failure begins, avoiding the environmental disasters and fuel distribution disruptions resulting from pipeline leaks. It features more than 13,000 presentations on a wide range of science topics.
24M CTO Naoki Ota will present the Dual Electrolyte System at the International Battery Seminar & Exhibit in Fort Lauderdale, Florida later this month. Using compositionally distinct electrolytes is a game changer for battery manufacturing and we’ve proven the fundamental technology. —Rick Feldt, President and CEO of 24M.
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