Nouvelles réactions, catalyseurs, molécules et procédés.
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Researchers correlated X-ray maps of titanium oxidation state with local electrochemical probing of single Ti3C2Tx flakes; redox activity extended well beyond the point of contact.
Argonne researchers benchmarked three single-crystal iridium faces in acid and alkali. Activity depends on the face and on pH, and alkaline media produce much more hydrogen peroxide.
A refined QSAR approach combines the ddE index, molecular weight and ortho substitution. On 1,177 amines it reached a positive predictive value of 65.6%, reducing false positive Ames predictions.
The project will test the full chain on CO₂ from a real flue gas stream at EEW's Eschbach site; earlier, the steps were shown in a 2020 experimental unit.
Samples from 38 stations show that the molecular composition of dissolved organic matter in the Weddell Sea is set before dense shelf water mixes with warmer off-shelf water.
Uniper and VNG H&V have produced the first green hydrogen at the 30 MW electrolyser in Bad Lauchstädt. Joint testing of the whole chain now begins; industrial use is planned from 2027.
Novamont (Versalis, Eni) and Sila introduced five microencapsulated feed additives at EuroTier; in vivo studies at the University of Bologna showed up to 33% lower methane intensity.
A spin-cast perovskite film conducts heat at about 0.04 W/(m·K) yet has a 7.7 GPa modulus, above most plastics, foams and aerogels. It is still a lab sample.
Under simulated sunlight, a reusable photocatalyst with citric acid leached over 85% of each metal from a mixed NCM/NCA cathode powder. The work is lab-scale, with modeled economics.
Researchers filled the pores of a copper-based MOF with ionic liquid and etched it with a gallium ion beam, avoiding the cryogenic cooling previously required for such patterning.
Mold damage to paint depends on the metals in pigments, not only on the binder, researchers report; the data come from in vitro tests and models.
Analysis of 48 magma inclusions in olivine found elevated carbon-13 in Kilauea samples. The authors propose that Earth received its carbon in several stages.
In two fluorinated copper(II) complexes, ordering of water molecules below 260 K creates hydrogen-bond pathways that carry antiferromagnetic coupling between ions not directly bonded.
Researchers at the University of Osaka showed that metal-free emitters need not be rigid: flexible molecules emit orange-to-red light efficiently in OLED test devices.
Researchers at the University of Osaka ran a four-hydrogen-atom quantum chemistry test as a single workflow across a supercomputer and a superconducting quantum computer. It is a first in Japan.
Researchers at Trinity College Dublin showed that IAP proteins shield chemotherapy-surviving tumor cells, and that blocking them removes senescent cells in lab experiments.
Michigan researchers found a ligandable pocket in the PNT domain of ERG, a protein long considered undruggable. The compound has so far been tested only in cells, organoids and mice.
A simulation of the European power system through 2050 shows iron combustion in former coal plants can complement hydrogen plants where seasonal storage is scarce. The results are model-based.
Chemist Constantin Fahlberg noticed a sweet taste on his hands in 1878. The compound became the first artificial sweetener and went through a century of safety disputes.
Researchers in South Korea made 109 nm silica from recycled solar cell powder; in laboratory half-cells a 5% blend lifted graphite anode capacity after 100 cycles.
