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Categories: Energy: Technology, Geoscience: Landslides
Published Renewable grid: Recovering electricity from heat storage hits 44% efficiency
(via sciencedaily.com) Original source Closing in on the theoretical maximum efficiency, devices for turning heat into electricity are edging closer to being practical for use on the grid, according to new research.
Published Electromechanical material doesn't get 'clamped' down
(via sciencedaily.com) Original source A new study finds that a class of electromechanically active materials called antiferroelectrics may hold the key to overcoming performance limitations due to clamping in miniaturized electromechanical systems.
Published Charting a pathway to next-gen biofuels
(via sciencedaily.com) Original source From soil to sequestration, researchers have modeled what a supply chain for second-generation biofuels might look like in the midwestern United States.
Published Iron could be key to less expensive, greener lithium-ion batteries, research finds
(via sciencedaily.com) Original source Chemistry researchers are hoping to spark a green battery revolution by showing that iron instead of cobalt and nickel can be used as a cathode material in lithium-ion batteries.
Published Cement recycling method could help solve one of the world's biggest climate challenges
(via sciencedaily.com) Original source Researchers have developed a method to produce very low emission concrete at scale -- an innovation that could be transformative in the transition to net zero. The method, which the researchers say is 'an absolute miracle', uses the electrically-powered arc furnaces used for steel recycling to simultaneously recycle cement, the carbon-hungry component of concrete.
Published New polystyrene recycling process could be world's first to be both economical and energy-efficient
(via sciencedaily.com) Original source Engineers have modeled a new way to recycle polystyrene that could become the first viable way of making the material reusable.
Published Streamlined microcomb design provides control with the flip of a switch
(via sciencedaily.com) Original source Researchers describe new microcomb lasers they have developed that overcome previous limitations and feature a simple design that could open the door to a broad range of uses.
Published Recycling carbon dioxide into household chemicals
(via sciencedaily.com) Original source Scientists report a family of tin-based catalysts that efficiently converts CO2 into ethanol, acetic acid and formic acid. These liquid hydrocarbons are among the most produced chemicals in the U.S and are found in many commercial products.
Published Powering wearable devices with high-performing carbon nanotube yarns
(via sciencedaily.com) Original source Carbon nanotube (CNT) yarns are promising for flexible and fabric-type wearable materials that can convert waste heat into thermoelectricity. To improve the thermoelectric properties of CNT yarns, researchers dispersed CNT filaments in a highly viscous glycerol, enabling the production of CNT yarn with highly aligned bundles together with surfactants that prevent increased thermal conductivity. This innovative approach can significantly improve carbon nanotube-based thermoelectric materials, making it possible to power wearable devices using just body heat.
Published Subduction zone splay faults compound hazards of great earthquakes
(via sciencedaily.com) Original source Groundbreaking research has provided new insight into the tectonic plate shifts that create some of the Earth's largest earthquakes and tsunamis.
Published Magnetic imprint on deconfined nuclear matter
(via sciencedaily.com) Original source Scientists have the first direct evidence that the powerful magnetic fields created in off-center collisions of atomic nuclei induce an electric current in 'deconfined' nuclear matter. The study used measurements of how charged particles are deflected when they emerge from the collisions. The study provides proof that the magnetic fields exist and offers a new way to measure electrical conductivity in quark-gluon plasma.
Published More efficient bioethanol production might be possible using persimmon tannin to help yeast thrive
(via sciencedaily.com) Original source Researchers have found that persimmon tannin, known for its antioxidant properties, improves the growth of yeast in the presence of ethanol.
Published Wind farms can offset their emissions within two years
(via sciencedaily.com) Original source After spinning for under two years, a wind farm can offset the carbon emissions generated across its entire 30-year lifespan, when compared to thermal power plants.
Published Copper can't be mined fast enough to electrify the US
(via sciencedaily.com) Original source Copper cannot be mined quickly enough to keep up with current U.S. policy guidelines to transition the country's electricity and vehicle infrastructure to renewable energy, according to a new study.
Published Using AI to improve building energy use and comfort
(via sciencedaily.com) Original source Researchers have developed a new method that can lead to significant energy savings in buildings. The team identified 28 major heat loss regions in a multi-unit residential building with the most severe ones being at wall intersections and around windows. A potential energy savings of 25 per cent is expected if 70 per cent of the discovered regions are fixed.
Published Metalens expands Its reach from light to sound
(via sciencedaily.com) Original source Engineers achieve a wide field-of-hearing acoustic metalens free from aberrations.
Published Exceptionally large transverse thermoelectric effect produced by combining thermoelectric and magnetic materials
(via sciencedaily.com) Original source A research team has demonstrated that a simple stack of thermoelectric and magnetic material layers can exhibit a substantially larger transverse thermoelectric effect -- energy conversion between electric and heat currents that flow orthogonally to each other within it -- than existing magnetic materials capable of exhibiting the anomalous Nernst effect. This mechanism may be used to develop new types of thermoelectric devices useful in energy harvesting and heat flux sensing.
Published Hide and seek between atoms: Find the dopant
(via sciencedaily.com) Original source Collaborative efforts decode the mechanism behind stabilizing cathode doping in electric vehicle batteries.
Published Transforming common soft magnets into a next-generation thermoelectric conversion materials by 3 minutes heat treatment
(via sciencedaily.com) Original source A research team has demonstrated that an iron-based amorphous alloy, widely used as a soft magnetic material in transformers and motors, can be transformed into a 'transverse' thermoelectric conversion material that converts electric and thermal currents in orthogonal directions, with just a short period of heat treatment. This is the first example that highlights the importance of microstructure engineering in the development of transverse thermoelectric conversion materials, and provides new design guidelines for materials development to realize environmentally friendly power generation and thermal management technologies using magnetic materials.
Published Efficacy of solar panels boosted
(via sciencedaily.com) Original source Solar energy is a crucial asset in the fight against climate change, and researchers have now devised a smart approach to optimize its effectiveness. Their innovative method includes incorporating artificial ground reflectors, a simple yet powerful enhancement.