Alkali Metals Activated High Entropy Double Perovskites for Boosted Hydrogen Evolution Reaction.

An efficient and facile water dissociation process plays a crucial role in enhancing the activity of alkaline hydrogen evolution reaction (HER). Considering the intricate influence between interfacial water and intermediates in typical catalytic systems, meticulously engineered catalysts should be developed by modulating electron configurations and optimizing surface chemical bonds. Here, a high-entropy double perovskite (HEDP) electrocatalyst La(CoNiMgZnNaLi)RuO, achieving a reduced overpotential of 40.

Augmented Electrochemical Oxygen Evolution by d-p Orbital Electron Coupling.

While high-entropy alloys, high-entropy oxides, and high-entropy hydroxides, are advanced as a novel frontier in electrocatalytic oxygen evolution, their inherent activity deficiency poses a major challenge. To achieve the unlimited goal to tailor the structure-activity relationship in multicomponent systems, entropy-driven composition engineering presents substantial potential, by fabricating high-entropy anion-regulated transition metal compounds as sophisticated oxygen evolution reaction electrocatalysts. Herein, a versatile 2D high-entropy metal phosphorus trisulfide is developed as a promising and adjustable platform.

Predicted structure of a Minus-C OBP from Batocera horsfieldi (Hope) suggests an intermediate structure in evolution of OBPs.

Odorant binding proteins (OBPs) transport hydrophobic odorants from the environment to odorant receptors and play an important role in specific recognition of volatiles. Here, we expressed and purified a minus-C OBP, BhorOBPm2, from Batocera horsfieldi, a major pest of Popolus, to determine its binding characteristics with 58 candidate volatiles using a fluorescence competition-binding assay. We showed that BhorOBPm2 exhibited high binding affinity with chain volatiles and that ligands were selected based on chain length.