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Categories: Chemistry: Organic Chemistry, Energy: Batteries

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Chemistry: Organic Chemistry Physics: Optics
Published

Researchers 'film' novel catalyst at work      (via sciencedaily.com) 

A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method is also environmentally friendly and does not require rare and precious metals. The researchers recorded the exact course of the catalysis in a kind of high-speed film. They did this using special lasers that can make processes visible that last only fractions of a billionth of a second. The results allow them to further optimize the catalyst.

Energy: Batteries Energy: Technology
Published

Chloride ions from seawater eyed as possible lithium replacement in batteries of the future      (via sciencedaily.com) 

Sodium, Potassium and zinc have all been promising contenders for lithium's place in rechargeable batteries of the future, but researchers have added an unusual and more abundant competitor to the mix: chloride, the richest negatively charged ions in seawater. Xiaowei Teng, the James H. Manning professor of Chemical Engineering at WPI, has discovered a new redox chemistry empowered by chloride ions for the development of seawater green batteries.

Chemistry: Organic Chemistry Physics: General Physics: Optics
Published

Making molecules dance to our tune reveals what drives their first movements      (via sciencedaily.com) 

Bringing ultrafast physics to structural biology has revealed the dance of molecular 'coherence' in unprecedented clarity.

Chemistry: Organic Chemistry
Published

Materials research: biocatalytic foams of tremendous stability and activity      (via sciencedaily.com) 

Industrial biocatalysis with enzymes is deemed to be a 'game changer' in the development of a sustainable chemical industry. Enzymes can be used to synthesize an impressive range of complex molecules, including pharmaceutical substances, under environmentally compatible conditions. Researchers have now developed a new class of materials by producing enzyme foams of tremendous stability and activity.

Chemistry: Organic Chemistry Engineering: Graphene
Published

Human scent receptors could help 'sniff out' nerve gases in new sensor      (via sciencedaily.com) 

By some estimates, the human nose can detect up to a trillion different smells with its hundreds of scent receptors. But even just catching a quick whiff of certain chemicals known as nerve agents can be lethal, even in tiny amounts. Researchers have now developed a sensitive and selective nerve gas sensor using these human scent receptors. It reliably detected a substitute for deadly sarin gas in simulated tests.

Chemistry: Organic Chemistry Energy: Alternative Fuels
Published

AuNi alloy on Au electrodes for hydrogen evolution reaction: Towards a cleaner tomorrow      (via sciencedaily.com)     Original source 

Gold (Au)-based electrocatalysts used for hydrogen production via water electrolysis exhibit high chemical stability but low hydrogen evolution reaction (HER) activity. Alloying them with nickel (Ni) can improve their HER activity. A recent study investigated the HER activity and surface properties of AuNi alloy prepared on single crystal Au surfaces, revealing the atomic structural changes and surface sites responsible for enhanced HER activity of AuNi/Au catalyst during electrolysis.

Energy: Batteries Energy: Technology
Published

Faster thin film devices for energy storage and electronics      (via sciencedaily.com) 

An international research team reported the first realization of single-crystalline T-Nb2O5 thin films having two-dimensional (2D) vertical ionic transport channels, which results in a fast and colossal insulator-metal transition via Li ion intercalation through the 2D channels.

Energy: Batteries Energy: Technology Engineering: Nanotechnology
Published

Cracking in lithium-ion batteries speeds up electric vehicle charging      (via sciencedaily.com) 

Rather than being solely detrimental, cracks in the positive electrode of lithium-ion batteries reduce battery charge time, research shows. This runs counter to the view of many electric vehicle manufacturers, who try to minimize cracking because it decreases battery longevity.

Energy: Batteries Energy: Technology Offbeat: Earth and Climate
Published

Energy-storing supercapacitor from cement, water, black carbon      (via sciencedaily.com) 

Engineers have created a 'supercapacitor' made of ancient, abundant materials, that can store large amounts of energy. Made of just cement, water, and carbon black (which resembles powdered charcoal), the device could form the basis for inexpensive systems that store intermittently renewable energy, such as solar or wind energy.

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

Solar batteries: New material makes it possible to simultaneously absorb light and store energy      (via sciencedaily.com) 

Researchers are making progress on the design of a solar battery made from an abundant, non-toxic and easily synthesized material composed of 2D carbon nitride.

Energy: Batteries
Published

Going the distance for better wireless charging      (via sciencedaily.com) 

Accounting for radiation loss is the key to efficient wireless power transfer over long distances.

Energy: Batteries Energy: Technology
Published

Aluminum materials show promising performance for safer, cheaper, more powerful batteries      (via sciencedaily.com) 

Researchers are using aluminum foil to create batteries with higher energy density and greater stability. The team's new battery system could enable electric vehicles to run longer on a single charge and would be cheaper to manufacture -- all while having a positive impact on the environment.

Energy: Batteries
Published

Current thinking on batteries overturned by cathode oxidation research      (via sciencedaily.com) 

Scientists have made a significant breakthrough in understanding and overcoming the challenges associated with Ni-rich cathode materials used in lithium-ion batteries.

Energy: Batteries Energy: Technology Geoscience: Environmental Issues
Published

Dry manufacturing process offers path to cleaner, more affordable high-energy EV batteries      (via sciencedaily.com) 

Early experiments have revealed significant benefits to a dry battery manufacturing process. This eliminates the use of toxic solvents while showing promise for delivering a battery that is durable, less weighed down by inactive elements and able to maintain high energy storage capacity after use. Such improvements could boost wider EV adoption, helping to reduce carbon emissions and achieve U.S. climate goals.

Energy: Batteries
Published

Next-generation flow battery design sets records      (via sciencedaily.com) 

A new flow battery design achieves long life and capacity for grid energy storage from renewable fuels.

Energy: Batteries
Published

New design rule for high-entropy superionic solid-state conductors      (via sciencedaily.com) 

Solid electrolytes with high lithium-ion conductivity can be designed for millimeter-thick battery electrodes by increasing the complexity of their composite superionic crystals, report researchers from Tokyo Tech. This new design rule enables the synthesis of high-entropy active materials while preserving their superionic conduction.

Energy: Batteries Engineering: Nanotechnology
Published

Nanosheet technology developed to boost energy storage dielectric capacitors      (via sciencedaily.com) 

A research group has used nanosheet technology to develop a dielectric capacitor for advanced electronic and electrical power systems. Innovations in energy storage technology are vital for the effective use of renewable energy and the mass production of electric vehicles. The capacitor has the highest energy storage density recorded. It has a short charging time, high output, long life, and high temperature stability, making it a major advancement in technology.

Energy: Batteries
Published

New aluminium radical battery promises more sustainable power      (via sciencedaily.com) 

Scientists are hoping to make the world's first safe and efficient non-toxic aqueous aluminum radical battery. Scientists have now reported the first stage of developing these novel batteries.

Energy: Batteries
Published

Neutrons look inside working solid-state battery to discover its key to success      (via sciencedaily.com)     Original source 

Researchers have used neutron reflectometry to peer inside a working solid-state battery and monitor its electrochemistry. They discovered that its excellent performance results from an extremely thin layer, across which charged lithium atoms quickly flow as they move from anode to cathode and blend into a solid electrolyte.