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Categories: Energy: Alternative Fuels, Geoscience: Landslides

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Energy: Alternative Fuels Energy: Technology Environmental: General
Published

How wind turbines react to turbulence      (via sciencedaily.com) 

The output of wind turbines can rise or fall by 50 per cent in a matter of seconds. Such fluctuations in the megawatt range put a strain on both power grids and the turbines themselves. A new study presents a new stochastic method that could help to mitigate these sudden swings and achieve a more consistent electricity production.

Chemistry: Biochemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology
Published

Predictive model could improve hydrogen station availability      (via sciencedaily.com) 

Consumer confidence in driving hydrogen-fueled vehicles could be improved by having station operators adopt a predictive model that helps them anticipate maintenance needs, according to researchers.

Energy: Alternative Fuels Environmental: General Environmental: Water Physics: General Physics: Optics
Published

Step change in upconversion the key to clean water, green energy and futuristic medicine      (via sciencedaily.com) 

Achieving photochemical upconversion in a solid state is a step closer to reality, thanks to a new technique that could unlock vital innovations in renewable energy, water purification and advanced healthcare.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Alternative Fuels Engineering: Graphene Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Making hydrogen from waste plastic could pay for itself      (via sciencedaily.com) 

Researchers have found a way to harvest hydrogen from plastic waste using a low-emissions method that generates graphene as a by-product, which could help offset production costs.

Environmental: Water Geoscience: Geography Geoscience: Landslides Geoscience: Oceanography
Published

100-year floods could occur yearly by end of 21st century      (via sciencedaily.com)     Original source 

Most coastal communities will encounter '100-year floods' annually by the end of the century, even under a moderate scenario where carbon dioxide emissions peak by 2040, according to a new study. And as early as 2050, regions worldwide could experience 100-year floods every nine to fifteen years on average.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New ionic materials boost hydrogen fuel cell efficiency!      (via sciencedaily.com) 

A research team has made a groundbreaking advancement in improving the efficiency of hydrogen fuel cells, which are gaining significant attention as eco-friendly next-generation energy sources.

Energy: Alternative Fuels Energy: Batteries Energy: Technology Geoscience: Environmental Issues
Published

Scientists develop new method to recover high-purity silicon from expired solar panels for upcycling into lithium-ion batteries      (via sciencedaily.com) 

Scientists have devised an efficient method of recovering high-purity silicon from expired solar panels to produce lithium-ion batteries that could help meet the increasing global demand to power electric vehicles.

Energy: Alternative Fuels Energy: Batteries Environmental: Water
Published

New battery holds promise for green energy      (via sciencedaily.com) 

A chemist envisions a future where every house is powered by renewable energy stored in batteries. He has created a new battery that could have profound implications for the large-scale energy storage needed by wind and solar farms.

Chemistry: General Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Batteries Engineering: Graphene Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Efficient and mild: Recycling of used lithium-ion batteries      (via sciencedaily.com) 

Lithium-ion batteries (LIBs) provide our portable devices like tablets and mobiles -- and increasingly also vehicles -- with power. As the share of volatile renewable energy needing electricity storage increases, more and more LIBs are needed, lithium prices rise, resources dwindle, and the amount of depleted batteries that contain toxic substances increases. Researchers introduce a novel approach for the recovery of lithium from used LIBs.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Chemistry: Thermodynamics Energy: Alternative Fuels
Published

Striking gold with molecular mystery solution for potential clean energy      (via sciencedaily.com) 

Hydrogen spillover is exactly what it sounds like. Small metal nanoparticles anchored on a thermally stable oxide, like silica, comprise a major class of catalysts, which are substances used to accelerate chemical reactions without being consumed themselves. The catalytic reaction usually occurs on the reactive -- and expensive -- metal, but on some catalysts, hydrogen atom-like equivalents literally spill from the metal to the oxide. These hydrogen-on-oxide species are called 'hydrogen spillover.'

Chemistry: Organic Chemistry Energy: Alternative Fuels Physics: General
Published

Energy storage in molecules      (via sciencedaily.com) 

Molecular photoswitches that can both convert and store energy could be used to make solar energy harvesting more efficient. A team of researchers has used a quantum computing method to find a particularly efficient molecular structure for this purpose. Their procedure was based on a dataset of more than 400,000 molecules, which they screened to find the optimum molecular structure for solar energy storage materials.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology Geoscience: Environmental Issues
Published

Direct power generation from methylcyclohexane using solid oxide fuel cells      (via sciencedaily.com)     Original source 

Methylcyclohexane is very promising as a hydrogen carrier that can safely and efficiently transport and store hydrogen. However, the dehydrogenation process using catalysts has issues due to its durability and large energy loss. Recently, researchers have succeeded in using solid oxide fuel cells to generate electricity directly from methylcyclohexane and recover toluene for reuse. This research is expected to not only reduce energy requirements but also explore new chemical synthesis by fuel cells.

Energy: Alternative Fuels Energy: Technology Environmental: Ecosystems Geoscience: Environmental Issues
Published

Researcher finds inspiration from spider webs and beetles to harvest fresh water from thin air      (via sciencedaily.com) 

A team of researchers is designing novel systems to capture water vapor in the air and turn it into liquid. They have developed sponges or membranes with a large surface area that continually capture moisture from their surrounding environment.

Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology
Published

Math enables blending hydrogen in natural gas pipelines      (via sciencedaily.com) 

Mathematical modeling can show how to safely blend hydrogen with natural gas for transport in existing pipeline systems. A secure and reliable transition to hydrogen is one of the proposed solutions for the shift to a net-zero-carbon economy.

Energy: Alternative Fuels Physics: Optics
Published

Improvements in silicon-perovskite tandem cells that helped achieve a whopping 32.5 percent efficiency      (via sciencedaily.com) 

In the ongoing quest for more efficient solar cells, the most current published record for tandem perovskite solar cells is 32.5 percent. In a new paper, researchers report on the improvements in silicon-perovskite tandem cells that have made this possible.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology Geoscience: Environmental Issues
Published

New approach shows hydrogen can be combined with electricity to make pharmaceutical drugs      (via sciencedaily.com) 

The world needs greener ways to make chemicals. In a new study, researchers demonstrate one potential path toward this goal by adapting hydrogen fuel cell technologies.

Energy: Alternative Fuels
Published

Study observes sudden acceleration of flow, generates new boundary layer      (via sciencedaily.com) 

In an experiment on how turbulent boundary layers respond to acceleration in the flow around them, aerospace engineers at the observed an unexpected internal boundary layer.

Energy: Alternative Fuels
Published

To improve solar and other clean energy tech, look beyond hardware      (via sciencedaily.com) 

A new analysis reveals that soft technology, the processes to design and deploy a solar energy system, contributed far less to the total cost declines of solar installations than previously estimated. Their quantitative model shows that driving down solar energy costs in the future will likely require either improving soft technology or reducing system dependencies on soft technology features.