• To boost the hydrogen economy, it is imperative to develop cost-effective and facile methodologies to synthesize NiFe-based (oxy)hydroxide catalysts for high-performance seawater electrolysis," they wrote. (uh.edu)
  • The combination of water use in electrolysis and the huge seawater availability has created the idea to develop a seawater electrolyzer. (academictransfer.com)
  • Initial tests for seawater electrolysis have been performed, and main challenges have been identified. (academictransfer.com)
  • You will focus on designing the (membrane-based) flow cells, making new electrodes, and analysing the stability in seawater electrolysis. (academictransfer.com)
  • Enabling renewable electricity-driven seawater electrolysis is a modern imperative that stands to unlock vastly abundant resources for integration in contemporary chemical fuel and feedstock production. (aiche.org)
  • Specifically, we highlight the stability afforded by bipolar membrane (BPM) electrolysis in comparison to PEM electrolysis, quantify the effects of controlling Cl - transport through permselective membranes, and present the longest sustained operation of direct seawater electrolysis at a significantly large current density (250 mA/cm 2 ) that has been reported to date. (aiche.org)
  • Herein we evaluate the strategy for generating H 2 directly via seawater electrolysis of preventing the transport of anionic constituentsâ particularly Cl - owing to the corrosive nature of its oxidesâ across the membrane electrode assembly from the catholyte to the anolyte. (aiche.org)
  • To quantify the degree to which permselective ionomer architectures mitigate the aforementioned failure modes, we 1) performed electrolysis under asymmetric electrolyte conditions that included HER in simulated or real seawater with OER in deionized water, and 2) coupled electrochemical with quantitative compositional analyses of device components and electrolyte conditions over time. (aiche.org)
  • Utilizing the fact that the equilibrium potential of oxygen evolution is lower than that of chlorine evolution, oxygen evolution in seawater electrolysis was enhanced by decreasing the polarization potential under galvanostatic conditions through increasing the effective surface area of manganese oxide electrodes. (elsevierpure.com)
  • Employing low-cost renewable electricity for the desalination of seawater would provide a sustainable water supply, needed for planting trees on arid land and turning them into future carbon sinks. (lut.fi)
  • Seawater desalination and iodine deficiency: is there a link? (huji.ac.il)
  • As water scarcity reaches critical levels globally, a research team at the United Arab Emirates University seeks to revolutionise seawater desalination practices, offering a path to mitigate water scarcity while championing environmental preservation. (universityworldnews.com)
  • And scientists already have the technical ability to both desalinate seawater and split it to produce hydrogen, which is in demand as a source of clean energy. (uh.edu)
  • A team of researchers led by Zhifeng Ren, director of the Texas Center for Superconductivity at UH, has reported an oxygen evolving catalyst that takes just minutes to grow at room temperature and is capable of efficiently producing both clean drinking water and hydrogen from seawater. (uh.edu)
  • Paired with a previously reported hydrogen evolution reaction catalyst, it can achieve industrially required current density for overall seawater splitting at low voltage. (uh.edu)
  • Researchers have designed a novel prototype device that is able to float on the ocean surface to produce hydrogen from seawater. (edu.au)
  • Researchers at Swinburne University of Technology's Centre for Translational Atomaterials , in collaboration with Shaanxi Normal University, have developed a robust single-atom platinum catalyst that can produce high-performance solar light-triggered hydrogen from seawater. (edu.au)
  • Floating prototype equipped with the single-atom platinum catalysts for solar light-triggered hydrogen production directly from seawater. (edu.au)
  • Now researchers are reporting a significant advance, a two-electrode catalyst that relies on one compound to efficiently produce hydrogen and oxygen from both seawater and freshwater. (nanotech-now.com)
  • In work described in Energy & Environmental Science, researchers from the University of Houston, the Chinese University of Hong Kong and Central China Normal University report using a nickel/molybdenum/nitrogen compound, tweaked with a small amount of iron and grown on nickel foam to efficiently produce hydrogen and then, through a process of electrochemical reconstruction sparked by cycling voltage, converted to a compound that produced a similarly powerful oxygen evolution reaction. (nanotech-now.com)
  • Andrew G. Dickson, Professor of Marine Chemistry at the Scripps Institution of Oceanography UC San Diego, has been measuring carbon dioxide in seawater for over 30 years. (uctv.tv)
  • However, there is little agreement about other aspects of seawater chemistry, such as the concentration of nutrients. (sciencedaily.com)
  • Hydrothermal Circulation and Seawater Chemistry: What's the chicken and what's the egg? (agu.org)
  • Calcium isotope ratios in evaporite successions provide an independent method for deriving semi-quantitative constraints on sulfate concentrations, as well as other properties of seawater chemistry. (princeton.edu)
  • These new constraints suggest that previous interpretations of sulfate concentrations and seawater chemistry need to be revised, opening up new possible solution spaces for the major ion composition of seawater. (princeton.edu)
  • A well-known expert in chemical physics, crystal chemistry, solid-state chemistry, and quantum chemistry, Sergey Aldoshin has solid experience in teaching students from Moscow State University and the Moscow Institute of Physics and Technology. (hse.ru)
  • The Joint Department at the HSE Faculty of Chemistry was established to develop the natural science areas at HSE University and teach physical and chemical engineering to HSE students. (hse.ru)
  • A SWAC system basically consists of deep seawater intake and return pipelines, titanium heat exchangers, seawater and freshwater pumps, and a distribution system for the chilled fresh water. (wikipedia.org)
  • The system accomplishes this by passing cold seawater through a heat exchanger where it cools freshwater in a closed loop system. (wikipedia.org)
  • There is a largely untapped energy source along the world's coastlines: the difference in salinity between seawater and freshwater. (innovationtoronto.com)
  • The team believes that their device could be used to extract power from the natural ionic flows at seawater-freshwater boundaries. (innovationtoronto.com)
  • Zhifeng Ren, director of the Texas Center for Superconductivity at UH and a corresponding author for the paper, said the new catalyst not only allows for efficient operations with a single catalyst but also works equally well in seawater and freshwater. (nanotech-now.com)
  • The catalyst s strong performance in seawater could solve a problem: most available catalysts work best in freshwater. (nanotech-now.com)
  • Researchers from Stanford and the University of Calgary have transformed pulses of electrical current sent 1,000 feet underground into a picture of where seawater has infiltrated freshwater aquifers along the Monterey Bay coastline. (stanford.edu)
  • Seawater is electrically conductive due to its high salt content, while freshwater is electrically resistive. (stanford.edu)
  • Natural seawater and natural freshwater should be obtained from a non-polluted source. (utex.org)
  • Atrial natriuretic peptide (ANP) decreases plasma Na concentration and promtes seawater (SW) adaptation in eels. (bioone.org)
  • Cysteine containing dipeptides were not associated with metal affinities that followed the Irving-Williams series but did follow the concentration trends found in seawater. (rsc.org)
  • UTEX sells ES/2 Enriched Seawater Medium at 1X concentration only. (utex.org)
  • The concentration of H 2 O 2 produced in seawater reached 48 mM, which was high enough to operate an H 2 O 2 fuel cell. (ewha.ac.kr)
  • The critical variables considered in this research include the temperature and concentration of seawater. (ntnu.edu.tw)
  • According to the experimental results, the increased concentration and temperature of seawater would accelerate deterioration of concrete obviously. (ntnu.edu.tw)
  • State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, PR China. (bvsalud.org)
  • Researchers from the University of Houston have reported an oxygen evolving catalyst that takes just minutes to grow at room temperature on commercially available nickel foam. (uh.edu)
  • Researchers from the University of Cape Town (UCT) and the University of Oxford recreated ancient seawater in the laboratory. (sciencedaily.com)
  • One question that concerned the researchers was whether the metals would be locked up for a long time or released back into seawater after several months or years. (sciencedaily.com)
  • A team of researchers at the University of Illinois Urbana-Champaign has reported a design for a nanofluidic device capable of converting ionic flow into usable electric power in the journal Nano Energy. (innovationtoronto.com)
  • Over the course of about two weeks, researchers from Stanford University and the University of Calgary worked with engineers from the engineering company WorleyParsons to lay out a long string of electrical cables along the beach. (stanford.edu)
  • Researchers at the Pacific Northwest National Laboratory exposed this special uranium-sorbing fiber developed at ORNL to Pseudomonas fluorescens and used the Advanced Photon Source at Argonne National Laboratory to create a 3-D X-ray microtomograph to determine microstructure and the effects of interactions with organisms and seawater. (forbes.com)
  • Specifically, this latest technology builds on work by researchers in Japan and uses polyethylene fibers coated with amidoxime to pull in and bind uranium dioxide from seawater (see figure above). (forbes.com)
  • Princeton engineering researchers have found a way to use egg whites to create a material that can remove salt and microplastics from seawater. (itbusiness.ca)
  • With an eye to developing a clean, alternative aviation fuel to reduce carbon emissions, researchers at the United Arab Emirates University have been focusing on the production of jet fuel from sustainable resources such as halophytes, which are salt-tolerant plants that could be cultivated on a wider scale in the region's coastal areas. (universityworldnews.com)
  • This service is for researchers and students within Lund University. (lu.se)
  • Find information about publications and researchers from Lund University. (lu.se)
  • Seawater makes up about 96% of all water on earth, making it a tempting resource to meet the world's growing need for clean drinking water and carbon-free energy. (uh.edu)
  • As greenalite was forming in early oceans, these metals would have been removed from seawater, leaving it rich in other metals, such as manganese, molybdenum, and cadmium. (sciencedaily.com)
  • They observed dramatic changes in the metal concentrations in seawater as the minerals formed. (sciencedaily.com)
  • Nanowerk News ) A University of Cordoba research group has designed a method that detects the presence of pollutants in seawater in a faster and more efficient way and also at very low concentrations. (nanowerk.com)
  • The study's primary author, University of Cordoba researcher María Teresa García Valverde, explains that "the combination of the Lab-on-valve system, titanium nanotubes modified with amorphous carbon as phase extraction and the measuring tool connected to the system, allows for quantifying parabens and triclosan at very low concentrations. (nanowerk.com)
  • This recycling of MeHg was evidenced by comparing total mercury (HgT) and MeHg concentrations in seawater, and HgT in molted pelage of M. angustirostris, at the Año Nuevo State Reserve pinniped rookery with concentrations at neighboring coastal sites in Central California. (princeton.edu)
  • Seawater MeHg concentrations around the rookery (average = 2.5 pM) were markedly higher than those at the comparison coastal sites (average = 0.30 pM), and were as high as 9.5 pM during the M. angustirostris molting season. (princeton.edu)
  • Here, we report clean and sustainable conversion of solar energy into electricity by photo-and bio-electrocatalytic recycling of the H2O/O-2 redox couple in a hybrid bio-photovoltaic (BPV) membraneless cell comprising a sunlight-illuminated water-oxidizing semiconductor anode (either Zn-doped hematite or TiO2) and an oxygen-reducing enzymatic biocathode, in such environmental media as seawater. (au.dk)
  • Scientists agree that the Archean seawater was very different from today, with more dissolved iron and silica and little to no oxygen. (sciencedaily.com)
  • Tostevin and her colleague Imad Ahmed recreated Archean seawater inside a special oxygen-free chamber and watched as greenalite began to form. (sciencedaily.com)
  • c)2020 Regents of the University of California. (uctv.tv)
  • On December 19, 2020, Honolulu Seawater Air Conditioning announced it was ending its development and would end operations by the end of January 2021. (wikipedia.org)
  • In seawater its ionic content inhibited mostly the activity of the photoanode, but not that of the biocathode. (au.dk)
  • While PEM electrolyzers are highly efficient in generating H 2 and O 2 from ultra-pure water feeds, the ionic composition of naturally occurring ocean waters significantly complicate their operation with seawater owing both to significant Nernstian voltage losses as well as anodic microenvironments that facilitate the oxidation of Cl - to corrosive OCl - , HOCl, and even dissolved Cl 2 . (aiche.org)
  • The demonstrated thermodynamically feasible coupling of cost-effective photoactive materials such as TiO2 or hematite semiconductors and enzymatic counterparts in seawater media opens a prospective clean and sustainable way of transformation of the most abundant, clean and renewable source of energy - solar light - and the Earth's most massive water resource - seawater - into electricity, which can also be used for fresh water production. (au.dk)
  • New research conducted by scientists at California Institute of Technology (Caltech) and Northwestern University shows that thin films of rust - iron oxide - can generate electricity when saltwater flows over them. (materialstoday.com)
  • Honolulu Seawater Air Conditioning was a project intended to use seawater air conditioning to deliver renewable cooling to commercial and residential properties in the downtown Honolulu area. (wikipedia.org)
  • Nuclear fuel made with uranium extracted from seawater makes nuclear power completely renewable. (forbes.com)
  • Distinct partitioning has been observed in the composition and diversity of bacterial communities inhabiting the surface and overlying seawater of three coral species infected with black band disease (BBD) on the southern Caribbean island of Curaçao, Netherlands Antilles. (illinois.edu)
  • The molecular sequences exhibited less than 5% similarity in bacterial community composition between seawater and the healthy, black band diseased, and dead coral surfaces. (illinois.edu)
  • Using alkaline seawater and operating under quasi-industrial conditions, the catalyst delivered a current density of 1,000 milliamps/centimeter squared using just 1.56 volts in seawater, remaining stable for 80 hours of testing. (nanotech-now.com)
  • LUT University studied how afforestation could be expanded to the world's arid areas sustainably and at a reasonable cost. (lut.fi)
  • In this PhD project, you will develop strategies for longer catalyst lifetime and in situ pH conditioning of the seawater. (academictransfer.com)
  • This paper investigates the durability behavior of GFRP bars embedded in moist seawater-contaminated concrete under a sustained load of 25% of its ultimate tensile stress. (uaeu.ac.ae)
  • The behavior of trace elements in seawater, sedimentary pore water, and their incorporation into carbonate minerals: a review. (lu.se)
  • Intriguingly, the metals they predict would have been most abundant in Archean seawater match those chosen by early lifeforms, explaining why they were favoured during early evolution. (sciencedaily.com)
  • Seawater, in contrast, is abundant. (nanotech-now.com)
  • It is highly desired to utilize the most earth-abundant seawater instead of precious pure water for the practical use of H 2 O 2 as a solar fuel. (ewha.ac.kr)
  • Here we have achieved efficient photocatalytic production of H 2 O 2 from the most earth-abundant seawater instead of precious pure water and O 2 in a two-compartment photoelectrochemical cell using WO 3 as a photocatalyst for water oxidation and a cobalt complex supported on a glassy-carbon substrate for the selective two-electron reduction of O 2. (ewha.ac.kr)
  • It's not just that the 4 billion tons of uranium in seawater now would fuel a thousand 1,000-MW nuclear power plants for a 100,000 years. (forbes.com)
  • After the electric car and the plug-in hybrid come the fuel cells, according to Patric Jannasch, Professor of Polymer Technology at Lund University. (lu.se)
  • Up to now, lots of researches have been done concerning the corrosion of concrete by seawater and durability of concrete. (ntnu.edu.tw)
  • During the experimental period (1 year), the specimens were cured in wetting and drying situation (for each circle, submerged by seawater for 24 hours and then drying at 70? (ntnu.edu.tw)
  • Sera and urine specimens, green mussel and seawater samples were tested for saxitoxin levels using high performance liquid chromatography. (who.int)
  • Ren's research group and others have previously reported a nickel-iron-(oxy)hydroxide compound as a catalyst to split seawater, but producing the material required a lengthy process conducted at temperatures between 300 Celsius and 600 Celsius, or as high as 1,100 degrees Fahrenheit. (uh.edu)
  • for the following 24 hours), and this repeatedly cyclic procedures is to accelerate the corrosion of reinforced concrete structure by seawater. (ntnu.edu.tw)
  • Beneath a fast-flowing ice stream in West Antarctica, scientists have discovered a vast aquifer brimming with seawater that's likely been locked down there for thousands of years. (livescience.com)
  • The obtained Pmax values were orders of magnitude higher than those of a photo-electrochemical cell with a Pt mesh cathode (0.32 mu W cm(-2) in seawater). (au.dk)
  • The corrosion of concrete for offshore structures is generally caused by the penetration of chloride ion deriving from the salts in seawater. (ntnu.edu.tw)
  • However, the investigation for corrosion of reinforced concrete structure by seawater are relatively rare, because of the needs for long term tests (at least 3 to 5 years usually). (ntnu.edu.tw)
  • But removing too much of that groundwater can change the fluid pressure of underground aquifers, drawing seawater into coastal aquifers and corrupting water supplies. (stanford.edu)
  • Gary Gill, deputy director of PNNL's Coastal Sciences Division who coordinated the marine testing, noted, "Understanding how the adsorbents perform under natural seawater conditions is critical to reliably assessing how well the uranium adsorbent materials work. (forbes.com)
  • Groundwater Throughflow and Seawater Intrusion in High Quality Coastal Aq. (rwth-aachen.de)
  • In this two-part series, he introduces the basic chemical processes underlying the study of carbon dioxide in the oceans, and provides an overview of the experimental techniques that are in use to measure the levels of carbon dioxide in seawater indicating how a newcomer to this field might make decisions as to what research tools best suit them. (uctv.tv)
  • fibers able to economically extract uranium from seawater. (forbes.com)
  • This marine testing shows that these new fibers had the capacity to hold 6 grams of uranium per kilogram of adsorbent in only about 50 days in natural seawater. (forbes.com)
  • Since plasma osmolality of marine teleosts is only one third that of seawater (SW), these fish face a constant threat of dehydration ( Evans, 1993 ). (bioone.org)
  • The hurdle is making it economic to extract uranium from seawater, because the amount of uranium in seawater is truly inexhaustible. (forbes.com)
  • Find articles, book chapters, journals and books in the holdings of Lund University libraries. (lu.se)
  • If an article is not within the collections of the Lund University Libraries you can make a request for an interlibrary loan. (lu.se)
  • Find all digital and printed journals at Lund University Libraries. (lu.se)
  • In seawater, amidoxime attracts and binds uranium dioxide to the surface of the fiber braids, which can be on the order of 15 centimeters in diameter and run multiple meters in length depending on where they are deployed (see figure below). (forbes.com)
  • After a month or so in seawater, the lengths are remotely released to the surface and collected. (forbes.com)
  • For ship data from the cruise, as well as graphics and files describing the route, see https://snd.gu.se/sv/catalogue/study/ecds0221 For descriptions of Work Packages and research conducted during the cruise, see the SWEDARCTIC Arctic Ocean 2016 Expedition Report: http://urn.kb.se/resolve?urn=urn:nbn:se:polar:diva-3475 Additional information on the expedition, including links to publications, is available at http://www.polarforskningsportalen.se/en/arctic/expeditions/arctic-ocean-2016 Work Package: Heavy Metals Road Map Project Dissolved gaseous mercury was continously measured (with 5 min resolution) in surface seawater along the Arctic Ocean 2016 cruise track. (gu.se)
  • The 17 PhD students from all faculties at Lund University enrolled with the Agenda 2030 Graduate School relate their specific research topics to the Sustainable Development Goals. (lu.se)
  • That was found by Post-doctoral Researcher Upeksha Caldera and Professor Christian Breyer from LUT University whose recent study was published in Nature Sustainability on 6 February 2023. (lut.fi)
  • Upon simulated solar light illumination (AM 1.5G, 100 mW cm(-2)), the maximum power density (P-max) generated by the cell was 236 and 21.4 mu W cm(-2) in 1 M Tris-HCl and seawater, both at pH 8, respectively. (au.dk)
  • It's that uranium extracted from seawater is replenished continuously, so nuclear becomes as endless as solar, hydro and wind. (forbes.com)
  • Looking at differences through time can often be more helpful than trying to understand a single image," said Pidlisecky, who conducted the research while at the University of Calgary in Canada. (stanford.edu)
  • In this case, the University of Cordoba research group was able to synthesize nanoparticles compatible with the Lab-on-Valve system due to their easy dispersion. (nanowerk.com)
  • 300,000 worth of works to improve the sea water quality at the University of St Andrews' Sea Mammal Research Unit are to commence next week (w/c 10 June 2002). (st-andrews.ac.uk)
  • The works, in the interest of both environmental research and animal welfare, follow an award to the University from the Scottish Higher Education Funding Council Science Research Infrastructure Fund (SRIF), part of a multi- million pound package granted to the University last year. (st-andrews.ac.uk)
  • Should you leave your research position at the university to lead your company or get out of the way entirely? (uh.edu)
  • In addition, the Pyongyang university's German department and the Free University of Berlin's Institute of Korean Studies signed a memorandum of understanding on conducting joint research. (universityworldnews.com)
  • For their first project, the North Korean university plans to cooperate on the German institute's research on seowon, one of the most common educational institutions during the Joseon Dynasty. (universityworldnews.com)
  • Lund University Agenda 2030 Graduate School is a global, cutting-edge research school and collaboration platform for issues related to societal challenges, sustainability and the 2030 Agenda. (lu.se)
  • We instead decided to create a miniature version of ancient seawater in the laboratory, where we could directly observe what was happening," said Tostevin. (sciencedaily.com)
  • Splitting seawater is more complicated, in part because of corrosion associated with the salt and other minerals. (nanotech-now.com)
  • Photo: Franz Geiger, Northwestern University. (materialstoday.com)
  • University of Oregon and Northwestern University biologists show that too many crossover events can increase infertility. (scitechdaily.com)
  • We can't go back in time to sample seawater and analyse it, so reconstructing Archean conditions is quite a challenge. (sciencedaily.com)
  • The water problem in Gaza is more complicated, as Gaza relies predominantly on wells, which are being increasingly infiltrated by salty seawater since Israel is overpumping the groundwater. (who.int)
  • Lead researcher Dr Rosalie Tostevin (University of Oxford at the time of the study, now Senior Lecturer in the Department of Geological Sciences at UCT), said: "We were very excited when we noticed that our results match predictions from biologists who use a completely different approach. (sciencedaily.com)