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Produced water from coal-bed natural gas (CBNG) production may contain sodium bicarbonate (NaHCO 3 ) at concentrations that can harm aquatic life, according to a new study by the US Geological Survey; Montana Fish, Wildlife and Parks; the Bureau of Land Management and the US Environmental Protection Agency.
Example of a lithium-water rechargeable battery. Researchers at the University of Texas, including Dr. John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. The present sodium-sulfur battery operates above 300 °C.
We’re then able to separate the pretreatment solution into two phases, a sugar-rich water phase for recovery and a lignin-rich ionic liquid phase for recycling. As an added bonus, our new pretreatment technique uses a lot less water than previous pretreatments. —Blake Simmons, corresponding author. —Blake Simmons.
Sodium-ion batteries (Na-ion, NIBs) are seen as an alternative to lithium-ion batteries for large-scale applications due to their lower cost and abundant supply of sodium. We also demonstrate a battery with the stibnite–graphene composite that is free from sodium metal, having energy density up to 80? Mason, Sudip K.
The results of their study, published in Joule , could help advance efforts to produce low-carbon fuels. Generation of H 2 and O 2 from untreated water sources represents a promising alternative to ultrapure water required in contemporary proton exchange membrane-based electrolysis.
The thermochemical production of hydrogen and oxygen from water via a series of chemical reactions is of interest because it directly converts thermal energy into stored chemical energy (hydrogen and oxygen), and thus can take advantage of excess heat given off by other processes. —Xu et al.
Schematic representation and operating principles of the lithium–water electrochemical cell used for hydrogen generation: (1) external circuit and (2) inside of lithium–water electrochemical cell. the high-school chemistry demonstration of the violent reaction between sodium and water.). sea water) by using sunlight.
A new study by Charles J. The Stanford study considered a future US grid where up to 80% of the electricity comes from renewables. What little capacity there is comes from pumped hydroelectric storage, which works by pumping water to a reservoir behind a dam when electricity demand is low. Credit: Barnhart and Benson, 2013.
Nouryon (formerly AkzoNobel Specialty Chemicals), Tata Steel and the Port of Amsterdam have joined together to study the feasibility of a large green hydrogen cluster in the Amsterdam region. The three parties consider green hydrogen as vital for reaching climate targets and building a more circular economy—e.g.,
The circulating seawater in the open-cathode system results in a continuous supply of sodium ions, endowing the system with superior cycling stability that allows the application of various alternative anodes to sodium metal by compensating for irreversible charge losses. an alloying material), in full sodium-ion configuration.
Following ramp-up to full production in 2029, the mine will produce ~58,000 tonnes of lithium carbonate, 160,000 tonnes of boric acid (B 2 O 3 units) and 255,000 tonnes of sodium sulfate annually, making Rio Tinto one of the top ten lithium producers in the world. million tonnes of lithium carbonate over the expected 40-year life of mine.
announced positive results from an independent feasibility study conducted on its permitted cobalt refinery in Ontario, Canada. The study contemplates expanding the existing facility and adapting it to be North America’s first producer of cobalt sulfate, an essential component in the manufacturing of batteries for electric vehicles.
But a new study led by Sujay Kaushal of the University of Maryland warns that introducing salt into the environment—whether it's for de-icing roads, fertilizing farmland or other purposes—releases toxic chemical cocktails that create a serious and growing global threat to our freshwater supply and human health. Increasing Cl ?
Canadian oil sands are a complex mixture of sand, clays, water, and bitumen. For surface mining oil sands production, a hot water extraction process (HWEP) has been widely applied. In this process, hot water and processing aids are mixed with oil sands to liberate bitumen from the minerals by shearing the oil sand particles.
A team of researchers from Tufts University, the University of Wisconsin-Madison and Harvard University report that alkali ions (sodium or potassium) added in small amounts activate platinum adsorbed on alumina or silica for the low-temperature water-gas shift (WGS) reaction (H 2 O+CO→ H 2 +CO 2 ) used for producing hydrogen.
The US Department of Energy’s (DOE’s) Advanced Research Projects Agency - Energy (ARPA-E) will award $38 million to 12 projects that will work to reduce the impacts of light-water reactor used nuclear fuel (UNF) disposal. Upon discharge from a nuclear reactor, the UNF is initially stored in steel-lined concrete pools surrounded by water.
To yield more oil, water may be injected into the reservoir to maintain pressure in order to keep the flow moving. Engineers may also make the water more alkaline by adding sodium hydroxide or sodium carbonate to help the oil flow better. —Yuichiro Nagatsu.
These plants pump hot water from geothermal deposits and use it to generate electricity. The LDH sorbent is made up of layers of the materials, separated by water molecules and hydroxide ions that create space, allowing lithium chloride to enter more readily than other ions such as sodium and potassium.
In the mid-20 th century, chemical companies successfully created magnesium feedstock from seawater by mixing it with sodium hydroxide, commonly known as lye. For example, the sodium hydroxide used to extract the magnesium salt can be generated on site using seawater and marine renewable energy. —Wang et al.
Using electrolyzed water rather than harsh chemicals could be a more effective and environmentally friendly method in the pretreatment of ethanol waste products to produce an acetone-butanol-ethanol fuel mix, according to research conducted at the University of Illinois. coli on fresh fruits and vegetables.
EO28), were identified in hydraulic fracturing flowback and produced water using a new application of the Kendrick mass defect and liquid chromatography/ quadrupole-time-of-flight mass spectrometry. The Kendrick mass defect differentiates the proton, ammonium, and sodium adducts in both singly and doubly charged forms.
Bicarbonates are a component of many natural stones and are also commonly used as baking powder or sherbet (sodium bicarbonate, NaHCO 3 ). In their study, they achieved hydrogenation of NaHCO 3. to sodium formate in 96% yield at 70 °C in water/THF without additional CO 2. Our new concept has a number of advantages.
In addition to its advantage of size, the presence of hydrogen as a constituent of water enables fast conduction of protons in aqueous systems by a displacive mechanism first postulated by von Grotthuss in 1806. Computational scientists have made tremendous progress on understanding how the proton hopping really occurs in water.
Hatch was commissioned to conduct a commercial-scale capital and operating cost comparison study, as well as a high-level evaluation of plant emissions and impacts to natural resources between NOVONIX’s patent-pending process and the conventional wet process.
However, the authors of this study realized that wild relatives of modern-day wheat remain a significant source of genes for a range of traits, including salinity tolerance. The salt-tolerant gene (known as TmHKT1;5-A) works by excluding sodium from the leaves. Matthew Gilliham.
The hot brine that comes up from the subsurface as part of geothermal power production at the Salton Sea in California is a rich stew of minerals, including iron, magnesium, calcium, sodium, and lithium. UC Riverside geochemist Michael McKibben, who has been studying the Salton Sea geothermal field since the 1970s, agrees with the potential.
A new study by a team from Carnegie Mellon University’s College of Engineering has found that even large increases in lithium prices are unlikely to increase significantly the cost of batteries or battery packs for end users such as vehicle manufactures or consumers—although some manufacturers may see reduced profit margins.
Fundamental engineering research, supported by modeling and simulation studies, that leads to new processes to efficiently harness wind energy for the production of electrical power is an interest area of this program. Advanced systems such as lithium-air, sodium-ion, as well as lithium-ion with new cathode chemistries are appropriate.
A team at the University of Maryland has demonstrated that a material consisting of a thin tin (Sn) film deposited on a hierarchical conductive wood fiber substrate is an effective anode for a sodium-ion (Na-ion) battery, and addresses some of the limitations of other Na-ion anodes such as capacity fade due to pulverization. —Zhu et al.
Scientists have demonstrated that modifying the topmost layer of atoms on the surface of electrodes can have a remarkable impact on the activity of solar water splitting. This photocurrent drives the chemical reactions that split water into oxygen and hydrogen. —Mingzhao Liu. —Kyoung-Shin Choi.
using catalysts that constitute iron nanoparticles (promoted by sulfur plus sodium) homogeneously dispersed on weakly interactive ?-alumina Researchers in the Netherlands have demonstrated the direct conversion of synthesis gas through a Fischer-Tropsch process to C 2 through C 4 light olefins with selectivity up to 60 wt.%
The major components of PM are sulfate, nitrates, ammonia, sodium chloride, black carbon, mineral dust and water. Epidemiological studies have shown that symptoms of bronchitis in asthmatic children increase in association with long-term exposure to NO 2. PM affects more people than any other pollutant.
Researchers at Tohoku University in Japan have developed a new system combining hydrodynamic cavitation with sodium percarbonate (SP) (an environmentally benign oxidation reagent) for the efficient pre-treatment of biomass. These bubbles subsequently collapse when the pressure increases downstream of the constriction.
Among other things, the demonstration project will evaluate the reduction in steam requirements with the goal to develop a technology that can potentially significantly lower the cumulative steam-to-oil ratio and water treatment costs associated with steam generation. This FEED study will be a building block for a full-scale commercial plant.
First, an electric potential will be applied to water to simultaneously produce acidity and alkalinity. Additionally, biological fixation of CO 2 will be studied and employed in producing acid that can be used to recover Cu from low grade feedstocks. Feedstocks will include Li/Ni/Ca/Mg-rich igneous and sedimentary minerals.
an analyst at the Nuclear Innovation Alliance think tank, who wasn’t involved with the DOE study. Most nuclear plants around the world today are large light-water reactors, with capacities well over a gigawatt—quite a bit more than typical coal plants. Conversion backers say the process has benefits for everybody involved.
The companys plan is to electrochemically strip carbon dioxide out of the ocean, store or use the CO 2 , and then return the water to the sea, where it will naturally absorb more CO 2 from the air. Thats a huge amount of water. The softened water passes through the electrodialysis unit, which applies a voltage.
At present, pretreatment techniques include physical, chemical, physicochemical and/or biological methods such as steam explosion; hot water extraction; sulfuric acid; sodium hydroxide; hydrogen peroxide; peracetic acid; ammonia fiber explosion (AFEX); and wet oxidation in addition to an emerging body of work on ozonolysis.
Water (1 project). Eagle Picher, in partnership with the Pacific Northwest National Laboratory, will develop a new generation of high energy, low cost planar liquid sodium beta batteries for grid scale electrical power storage applications. Affordable Energy from Water and Sunlight. Waste Heat Capture (2 projects).
In a study conducted on diabetic mice published in Science Advances, Ameer and his collaborators, including resorbable electronics pioneer John Rogers, found the device led to 30 percent faster healing than a control group using ordinary bandages. As the wound heals, the regenerated skin grows over the electrode and completely absorbs it.
However, poor mobility of Mg 2+ (and other multivalent cations) prevents the development of a broad spectrum of cathode materials, as are available to lithium- and sodium-ion battery technologies. In this study we show that high Mg 2+ mobility in solids can be achieved by judicious tuning of crystal structure and chemistry.
We start with a Bose-Einstein condensate, 1 million sodium atoms that share one and the same quantum-mechanical wave function”, says Martin Zwierlein , a professor of physics at MIT. The same thing would happen to a drop of water if I were to spin it up in the same way—the drop would elongate while spinning.”. Rick Duffy/Wikipedia.
Hydrogen produced by water electrolysis has the potential to be a useful means of storing excess electricity generated using wind, solar, and other intermittent renewable energy. Integrated renewable hydrogen systems and public-private community-based partnerships. Analysis of excess and/or waste hydrogen sources.
With rapid advances in the computational capability, we envision these descriptors to be used in high-throughput studies to screen not only lithium ion conductors but also other technologically relevant ion conductors such as oxygen or sodium ion conductors. —Muy et al.
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