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Researchers from the University of Michigan and McGill University in Canada report photochemical syngas synthesis using a core/shell Au@Cr 2 O 3 dual cocatalyst in coordination with multistacked InGaN/GaN nanowires (NWs) with the sole inputs of CO 2 , water, and solar light. This will significantly reduce overall CO 2 emissions.
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.
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 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.
Methane hydrate is studied for its ability to capture and trap gas molecules such as carbon dioxide under high pressure. A) CO 2 hydrate where CO 2 molecules are trapped in water clusters at high pressures and low temperatures. An open-access paper on their work appears in Cell Reports Physical Science.
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). Lopez, J.S.,
Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways. Credit: NASA. Click to enlarge.
Canadian Natural Resources (CNRL), an independent crude oil and natural gas producer, is applying a technique at its Horizon oil sands plant that uses CO 2 to change the water chemistry of the tailings, resulting in accelerated settling and greatly reduced water use.
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. In this study, we focus on the electrolysis component for STEP fuel. Click to enlarge.
A new study based on deep-sea sediment cores, published in the journal Nature , has found that during the Miocene period ~12–5 million years ago, climate was decoupled from atmospheric carbon dioxide concentrations. Ratios of the compound preserve a record of the water temperature in which the plankton lived. —Jonathan LaRiviere.
The Kansas Geological Survey based at the University of Kansas has received a nearly $5 million grant from the US Department of Energy (DOE) to study the feasibility of storing carbon dioxide underground. CO2 sequestration is in the early phase of implementation globally. and Bittersweet Energy Inc.
The process, reported in the ACS journal Energy & Fuels , could leverage a recently reported process, also developed by NRL, to recover CO 2 from sea water. The mechanism of the first stage first produces CO and water. The water formed in the primary reactions negatively influences catalyst activity and product selectivity.
Slag is rich in calcium silicates that dissolve in water; when atmospheric CO 2 dissolves in water to form carbonic acid, it reacts with the dissolved silicates to form stable carbonate minerals such as calcite, which nearly permanently sequesters the carbon. —Pullin et al. while average calcium (Ca) levels exceeded 30%.
Reintroducing airships into the world’s transportation mix could contribute to lowering the transport sector’s carbon emissions and can play a role in establishing a sustainable hydrogen based economy, according to a new IIASA-led study. This process could be used to alleviate water stress in regions suffering from shortages.
When illuminated by light, these QDs drive the renewable production of different biofuels and chemicals using carbon-dioxide (CO 2 ), water, and nitrogen (from air) as substrates. The microbes, which lie dormant in water, release their resulting product to the surface, where it can be skimmed off and harvested for manufacturing.
Given increasing emissions of CO 2 and the subsequent increased absorption by the oceans, ocean acidity could increase by 150% by 2050, according to a major new review and synthesis study released by the Secretariat of the Convention on Biological Diversity (CBD). —Scientific Synthesis of the Impacts of Ocean Acidification.
Scientists in the US and China have developed a new low-temperature catalyst for producing high-purity hydrogen gas while simultaneously using up carbon monoxide (CO) via the water-gas shift (WGS) reaction. Its synergy with adjacent Mo sites in α-MoC can effectively activate water at low temperature. —Yao et al.
The new system mimics a natural chloroplast to convert carbon dioxide in water into methane, very efficiently using light. Photosynthesis is the process by which chloroplasts in plants and some organisms use sunlight, water and carbon dioxide to create food or energy.
Their quantitative lifecycle assessment of the environmental merits of liquid hydrocarbon fuels produced from CO 2 , water and energy compared to alternative fuel production routes is published in the ACS journal Environmental Science & Technology. R indicates reference alternatives not explicitly modeled in this study.
Although EROI has important limitations as a metric, the study authors noted, it still represents a valuable first estimate of the viability of different fuel production pathways relative to conventional benchmarks. solid phase consisting primarily of biochar (~3 wt%).
Their study will be published online 13 March in the journal Geophysical Research Letters. In the absence of strong policy, atmospheric CO2 will reach 550 ppm in several decades. The impact on reefs is a consequence of both ocean acidification caused by the absorption of carbon dioxide into seawater and rising water temperatures.
air batteries because most previous studies have been conducted in a pure O 2 atmosphere, under the assumption that the other components of air will be less important in the operation of the battery. Goddard, III, Hyungjun Kim, and Kisuk Kang (2013) Toward a Lithium–“Air” Battery: The Effect of CO2 on the Chemistry of a Lithium–Oxygen Cell.
For the current study, Toma and her team designed a model solar fuels device known as a photoelectrochemical (PEC) cell made of copper(I) oxide or cuprous oxide (Cu 2 O), a promising artificial photosynthesis material. We knew it was unstable—but we were surprised to learn just how unstable it really is.
This study is intended as a proof of concept demonstration. As discussed in the study, it is likely that in future variations of this new synthesis the requisite exfoliation voltage can be substantially decreased. organic electrosynthesis of benzoic acid from benzene without over-oxidizing into CO 2.
A report prepared by ISIS (Institute of Studies for the Integration of Systems - Italy) together with Tecnalia (Spain) for the European Parliamentary Research Service (EPRS) discusses the technological, environmental and economic barriers for producing methanol from carbon dioxide, as well as the possible uses of methanol in car transport in Europe.
launching a new track on the interaction of energy and water (the energy/water ‘nexus’). This CCUS project with Enhanced Water Recovery will eventually inject about 1 million tons of CO2 and create approximately 1.4 million cubic meters of freshwater per year.
syngas—from water and CO 2. Now, a team from the Paul Scherrer Institute (PSI) in Switzerland has demonstrated the direct production of hydrocarbon fuel—specifically methane—from water and CO 2 by incorporating a catalytic process into STCs. This study shows that direct methane production in STCs is possible.
Partners of the P2X Kopernikus project on the premises of Karlsruhe Institute of Technology (KIT) in Germany have demonstrated the production of fuel from air-captured CO2 using—for the first time—a container-based test facility integrating all four chemical process steps needed to implement a continuous process.
volts versus the reversible hydrogen electrode) in CO-saturated alkaline water. —Matthew Kanan, an assistant professor of chemistry at Stanford and coauthor of the Nature study. For the Nature study, Kanan and Li built an electrochemical cell: two electrodes placed in water saturated with carbon monoxide gas.
In their study, the scientists used the example of a delivery truck. First, the vehicle’s flue gases in the exhaust pipe are cooled down and the water is separated from the gases. The patented concept is the subject of an open-access paper published in Frontiers in Energy Research.
If ship hulls were coated with special bo-inspired high-tech air trapping materials, up to 1% of global CO 2 emissions could be avoided according to a new study by researchers from the University of Bonn together with colleagues from St. According to the study, ships could save up to 20% of fuel as a result of reduced drag. Resources.
Running reactions in a single step without the prerequisite of generating hydrogen—having the ability to run water directly—is a very novel platform. Rondinone and colleagues are conducting studies to understand and improve efficiency limits, lifetime limits and poisoning tolerance. —Brandon Iglesias.
The latter technology is based on the use of capacitive electrode cell pairs; similar to those used in supercapacitors or in capacitive deionization (CDI) for water desalination. In all experiments, the flow of the CO 2 -flushed water through the device was alternated with the flow of air-flushed water. M MEA solution.
These active sites are where electrocatalysis takes place: electrons from the copper surface interact with carbon dioxide and water in a sequence of steps that transform them into products such as ethanol, ethylene, and propanol, an alcohol commonly used in the pharmaceutical industry. —Joel Ager, a researcher at JCAP who led the study.
The chemistry of the ocean is changing at an unprecedented rate and magnitude due to anthropogenic carbon dioxide emissions; the rate of change exceeds any known to have occurred for at least for at least 800,000 years, concludes a congressionally requested study by the US National Research Council. Ocean Acidification. unit—from about 8.2
The two studies were published in separate issues of the journal Angewandte Chemie International Edition. The RWTH Aachen team pursued a new approach to obtain methanol by the hydrogenation of CO2 with elemental hydrogen in an homogeneous process—i.e., Production of formic acid.
The US Department of Energy (DOE) has selected two projects that will test emerging enhanced water recovery (EWR) technologies for their potential to produce useable water from CO 2 storage sites. Once treated, the clean water could be re-used for beneficial purposes, including supplemental cooling water at a power station.
A catalyst made from a foamy form of copper has different electrochemical properties from catalysts made with smooth copper in reactions involving carbon dioxide, according to a new study by a team from Brown University. The work in the study is part of a larger effort by Browns Center for the Capture and Conversion of CO 2.
Snam and Saipem have already started working together, focusing in particular on developing the technology of water electrolysis, a process that makes it possible to reduce CO 2 emissions to zero in the production of green hydrogen.
Russia-based Norilsk Nickel (Nornickel)—the world’s largest nickel producer—is studying the potential for mining tailings to capture and store CO 2. By reacting with water and air, carbon dioxide is bound with minerals and metals, which are present in these types of rock, resulting in the formation of carbonates.
A study by the University of Kansas Center for Research funded by the US Department of Energy (DOE) has established the feasibility of using near-miscible CO 2 injection for recovering between 250 million and 500 million additional barrels of oil from Kansas oilfields.
Net life cycle GHG emissions of five CO 2 -EOR projects used as case studies. Secondary recovery techniques generally injecting water or gas to displace oil and drive it to a production wellbore, resulting in the recovery of 20 to 40% of the original oil in place. The CMU Study. In their study, Paulina Jaramillo, W.
Biofeedstock company Proterro, the developer of a biosynthetic process to manufacture fermentable sugar ( earlier post ), and Bunge Global Innovation, LLC, a wholly-owned subsidiary of global agribusiness and food company Bunge Limited, will conduct a pilot study of Proterro’s sucrose-production technology in Brazil.
Using corn crop residue to make ethanol and other biofuels reduces soil carbon and under some conditions can generate more greenhouse gases than gasoline, according to a major, multi-year study by a University of Nebraska-Lincoln team of researchers published in the journal Nature Climate Change. Changes in SOC. Liska et al. Pelton, Xiao X.
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