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Step toward a Circular Economy?

Catalytic deconstruction of PET with zirconium metal–organic framework

11-May-2022

Polyethylene terephthalate (PET) is one of the most common plastics. Discarded PET most often ends up in landfills or in the environment because the rate of recycling remains low. In the journal Angewandte Chemie, a research team has now reported a zirconium-based metal–organic framework material ...

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High Output Voltage

Sulfonamides make robust cathode material for proton batteries

26-Apr-2022

Proton batteries are an innovative and environmentally friendly type of battery in which charge is carried by protons, which are positively charged hydrogen ions. A team of researchers has now developed organic sulfonamides as a robust and flexible material for cathodes in these batteries. As the ...

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How Is Haze Formed?

Soot as a surprising source of haze-building hydroxyl radicals: new perspectives for air purification and the energy industry

05-Apr-2022

Haze is formed when a cocktail of various gaseous pollutants is oxidized and forms particulate matter diffusing sunlight. This process is mainly mediated by hydroxyl radicals (OH), and researchers have now discovered a new route to their formation. This newly discovered radical-building mechanism ...

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Firefly Luminescence Reveals Pesticides

Luciferin synthesis and organophosphate detection by a luminescent enzymatic cascade

16-Mar-2022

A luminescence reaction modeled on fireflies can detect contamination with organophosphates with high sensitivity, ease, and low cost. At the center of this technology is a new enzymatic method for the synthesis of analogues of luciferin, the substance that makes fireflies glow. As reported by a ...

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Double Locked: Polymer hydrogels secure confidential information

07-Mar-2022

The development of highly secure but simple and inexpensive encryption technology for the prevention of data leaks and forgeries is decidedly challenging. In the journal Angewandte Chemie, a research team has introduced a “double lock” based on thermoresponsive polymer hydrogels that encrypts ...

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Freshwater from Thin Air

Hydrogels containing a hygroscopic salt can harvest freshwater from dry air

02-Mar-2022

Hydrogels have an astonishing ability to swell and take on water. In daily life, they are used in dressings, nappies, and more to lock moisture away. A team of researchers has now found another use: quickly extracting large amounts of freshwater from air using a specially developed hydrogel ...

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Strong and elastic, yet degradable: protein-based bioplastics

Relief for Oceans and Landfills?

16-Feb-2022

More than eight million tons of plastic end up in the oceans every year—a serious danger for the environment and health. Biodegradable bioplastics could provide an alternative. In the journal Angewandte Chemie, a research team has now introduced a new method for the production of protein-based ...

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Polymers with Helical Blocks

Forming domains in supramolecular polymers using UV irradiation

02-Dec-2021

Polymers, the basis of all plastics, usually do not have an ordered structure, in contrast to biopolymers such as proteins. A team of researchers has now developed a polymer that can be differentiated into folded (ordered) and unfolded (disordered) domains using UV irradiation. The team’s work ...

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Methane from Carbon Dioxide

Efficient catalyst for the light-driven methanation of CO2

19-Nov-2021

Recycling carbon dioxide (CO2), especially through conversion to methane (CH4), is compelling while anthropogenic CO2 emissions are still rising. A useful process for this transformation is photothermal methanation, in which CO2 and hydrogen are catalytically converted into CH4 and water upon ...

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Liquid Fuels from Carbon Dioxide

Electrocatalyst converts CO2 into multicarbon products

18-Nov-2021

A new electrocatalyst called a-CuTi@Cu converts carbon dioxide (CO2 ) into liquid fuels. As reported by a team of Chinese researchers in the journal Angewandte Chemie, active copper centered on an amorphous copper/titanium alloy produces ethanol, acetone, and n-butanol with high efficiency. Most ...

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