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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. Diess et al.
As water-splitting technologies improve, often using porous electrode materials to provide greater surface areas for electrochemical reactions, their efficiency is often limited by the formation of bubbles that can block or clog the reactive surfaces. As a result, there were substantial changes of the transport overpotential.
Stanford researchers, with a colleague from King Fahd University of Petroleum and Minerals, have developed a simple and environmentally sound way to make ammonia with tiny droplets of water and nitrogen from the air. Water microdroplets are the hydrogen source for N 2 in contact with Fe 3 O 4. The conversion rate reaches 32.9 ± 1.38
Africa can produce 50 million tons of green hydrogen a year by 2035, according to a new study by the European Investment Bank (EIB), International Solar Alliance and the African Union, with the support of the Government of Mauritania, HyDeal and UCLG Africa.
Scientists at the USC Wrigley Institute for Environmental Studies on Santa Catalina Island, working with private industry, report that a new aquaculture technique on the California coast significantly increases kelp growth, yielding four times more biomass than natural processes. The researchers used a depth-cycling approach—i.e.,
Researchers at the University of Ontario Institute of Technology are developing a new method to dissociate water vapor into hydrogen gas by microwave-generated plasma (plasmolysis). In this study, a unique novel system is designed to decompose water vapor in a commercial modified 2.45 —Chehade et al. 2019.116831.
A team led by researchers at Tokyo Institute of Technology (Tokyo Tech) have discovered a new bimetallic electrocatalyst for the oxygen evolution reaction (OER) in electrochemical water splitting: CaFe 2 O 4. The study is published in the journal ACS Applied Energy Materials.
Researchers have developed a nickel-stabilized, ruthenium dioxide (Ni-RuO 2 ) anode catalyst for proton exchange membrane (PEM) water electrolysis. The Ni-RuO 2 catalyst shows high activity and durability in acidic OER for PEM water electrolysis. Illustration by Zhen-Yu Wu. 2 , suggesting potential for practical applications.
A study led by Norwegian climate center CICERO has found that the global warming effect of leaked hydrogen is almost 12 times stronger than that of CO 2. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Sand et al. Hydrogen interacts with various biogeochemical processes.
Researchers led by engineers at The University of Texas at El Paso (UTEP) have proposed a low-cost, cactus-inspired nickel-based material to help split water more cheaply and efficiently. who led the study. who led the study. Nickel, however, is not as quick and effective at breaking down water into hydrogen.
Researchers at the University of Southampton have transformed optical fibers into photocatalytic microreactors that convert water into hydrogen fuel using solar energy. The researchers have published their proof-of-concept in ACS Photonics and will now establish wider studies that demonstrate the scalability of the platform.
Photoelectrochemical (PEC) water splitting based on solar energy is one promising approach for the production of green hydrogen. However, its widespread application is limited by a lack of efficient photoanodes for catalyzing the rate-limiting oxygen evolution reaction (OER), an important reaction in PEC water splitting. 202300951
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. —Catherine Dreanno. —Christophe Maes.
Researchers at the University of Cambridge, with colleagues at the University of Tokyo, have developed a standalone device that converts sunlight, carbon dioxide and water into formic acid, a carbon-neutral fuel, without requiring any additional components or electricity. —senior author Professor Erwin Reisner. Qian Wang et al.
of the human-made climate impact; two-thirds of this impact are caused by emissions other than CO 2 , according to a new study by researchers in Europe and the US. The study was published in the journal Atmospheric Environment. This new study is based on a thorough review of a decade of research on aviation emissions.
Researchers in Israel have designed a separate-cell photoelectrochemical (PEC) water-splitting system with decoupled hydrogen and oxygen cells for centralized hydrogen production. Photoelectrochemical Water Splitting Cell Architectures. (A) A paper describing their system is publishedin the journal Joule. —Landman et al.
An open-access paper on the study is published in the journal Resources, Conservation and Recycling. This study establishes a baseline for current practices and shows us potential areas for improvement. In the study, the researchers used operational data supplied by SQM, one of the world’s leading producers of lithium.
Scientists at Tokyo Institute of Technology (Tokyo Tech) have demonstrated the first visible-light photoelectrochemical system for water splitting using TiO 2 enhanced with cobalt. The proposed approach is simple and represents a stepping stone in the quest to achieve affordable water splitting to produce hydrogen. —Prof.
Researchers at Uppsala University have developed photocatalytic composite polymer nanoparticles (“polymer dots”) that show promising performance and stability for the production of hydrogen from water and sunlight. Since polymer dots (Pdots) are so tiny, they are evenly distributed in water.
Korea’s Ulsan National Institute of Science and Technology (UNIST) have developed a novel process for the production of hydrogen using various types of biomass, including lignin, as an efficient alternative to water oxidation as an electron source. Conventionally, water is considered a cheap and clean source of electrons; 2H 2 O ?
In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). The next stage is then to take that chemical profile and study the toxicity of each. —Emissions Analytics.
The Dutch Institute for Fundamental Energy Research ( DIFFER ) is partnering with Toyota Motor Europe (TME) to develop a device that absorbs water vapor, and splits it into hydrogen and oxygen directly using solar energy. Over the last year, DIFFER and TME demonstrated in a joint feasibility study that the envisioned principle works.
Now, a study by researchers at the US Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation (CABBI) has found that energy sorghum ( Sorghum bicolor ) behaves more like miscanthus in the way it efficiently captures light and uses water to produce abundant biomass. Energy sorghum falls somewhere in between.
The open-access paper on the study is published in the RSC journal Energy & Environmental Science. of hydrogen is currently produced via water electrolysis and only a fraction of this production is powered by renewable energy. Process flow diagram and construction phase boundary. Palmer et al. According to the IEA, less than 0.1%
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. —Shannon Boettcher.
An even more intense “megadrought” hit the region around 1,800 years ago, according to a new study published in the AGU journal Geophysical Research Letters. The new study used tree-ring data and other climate records to identify a drought period unmatched in severity by the current drought or other ancient droughts.
The midwater plume comprises two stages: (i) the dynamic plume, in which the sediment-laden discharge water rapidly descends and dilutes to a neutral buoyancy depth, and (ii) the subsequent ambient plume that is advected by the ocean current and subject to background turbulence and settling. Earlier post.).
A new study of the impact of high EV adoption on the Western US power grid by a team from Pacific Northwest National Laboratory (PNNL) has found that 2028 grid resource adequacy—from generation through transmission—is likely to be sufficient for high EV penetration. Source: PNNL.
In an open-access study in the journal ACS Nano , the researchers report that the composite (LaCr 0.2 Currently, the most efficient electrolyzers contain platinum and iridium, which are needed for the electrodes on which the hydrogen and oxygen gas are produced from water. However, platinum and especially iridium are too rare.
The study was conducted on 8,867 Chinese adults aged 25 to 92. The findings, published in an open-access paper in JAMA Network Open , are significant because, while similar studies have been conducted in the US and Europe, this one is the first to investigate the connection between air pollution and coronary artery calcium in China.
A study by an international team of researchers led by Aalto University finds that less than one-third of the world’s population could currently meet their demand for food with food produced in their local vicinity. The study also showed that foodsheds are mostly relatively compact areas for individual crops. —Pekka Kinnunen.
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).
A research group led by Associate Professor Takashi Tachikawa of Kobe University’s Molecular Photoscience Research Center has developed a strategy that greatly increases the amount of hydrogen produced from sunlight and water using hematite (??Fe Mesocrystal photoanode formation and photochemical water splitting characteristics.
Ruthenium dioxide is widely used in industrial processes, in which it’s particularly important for catalyzing the oxygen evolution reaction (OER) that splits molecules of water and releases oxygen. I think the exciting aspect of the work is that we push a little bit the boundary of our understanding of the catalysis of splitting water.
The study is one of the first to account for methane leaking from old, abandoned mines. Kholod said that when a closed mine is flooded, water stops methane from leaking almost completely within about seven years. The study is the first to attempt to account for methane escaping from abandoned mines.
Vulcan Energy Resources will collaborate with DuPont Water Solutions,a leader in water filtration and purification, to test and to scale up Direct Lithium Extraction (DLE) solutions for Vulcan’s Zero Carbon Lithium extraction process. Earlier post.).
The US Bureau of Reclamation released the Colorado River Basin August 2021 24-Month Study. This month’s study projections are used to set annual operations for Lake Powell and Lake Mead in 2022. Lake Powell Mid-Elevation Release Tier: The study projects Lake Powell’s 1 January 2022 elevation to be 3,535.40
During their experiments, the scientists happened to notice that a strange odor developed when commercial cement was mixed with water. Of the organic matter present in cement, phthalates have the highest effect on deterioration more than phosphates and AE water reducing agents. CT scans showing cracks in damaged concrete.
which has developed its own integrated subcritical-water organic-waste power-generation system (ISOP) system, which decomposes organic substances using subcritical-water-treating technology and ultimately produces green energy products such as biofuels. The products can be reused as green energy products such as bio-coal, biogas (e.g.,
Siemens Energy, Duke Energy and Clemson University have teamed up to study the use of hydrogen for energy storage and as a low- or no-carbon fuel source to produce energy at Duke Energy’s combined heat and power plant located at Clemson University in South Carolina.
This project will complete key engineering design and demonstration tests to enable cost-competitive, carbon-neutral production of synthetic jet fuel and diesel using nuclear energy from existing light water reactors.
A new way of anchoring individual iridium atoms to the surface of a catalyst significantly increased its efficiency in splitting water molecules, scientists from the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University reported in an open-access paper in Proceedings of the National Academy of Sciences (PNAS). …we
Previous studies have analyzed the particulate matter with mass spectrometers to see what it consists of. —Peter Aaron Alpert, first author of the new PSI study. If this is confirmed in further studies, we urgently need to adapt our models and critical values with regard to air quality. This is due to viscosity.
Researchers from the GEOMAR Helmholtz Center for Ocean Research Kiel have found that considerable quantities of the greenhouse gas methane escape uncontrolled into the water from abandoned oil and gas wells in the North Sea. The new study by GEOMAR scientists confirms this initial estimate on a larger data basis. Böttner, C.,
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