Formation of HO in Near-Neutral Zn-air Batteries Enables Efficient Oxygen Evolution Reaction.

Rechargeable Zn-air batteries (ZABs) with near-neutral electrolytes hold promise as cheap, safe and sustainable devices, but they suffer from slow charge kinetics and remain poorly studied. Here we reveal a charge storage mechanism of near-neutral Zn-air batteries that is mediated by formation of dissolved hydrogen peroxide upon cell discharge and its oxidation upon charge. This HO-mediated pathway facilitates oxygen evolution reaction (OER) at ~1.

NMR studies of lithium and sodium battery electrolytes.

This review focuses on the application of nuclear magnetic resonance (NMR) spectroscopy in the study of lithium and sodium battery electrolytes. Lithium-ion batteries are widely used in electronic devices, electric vehicles, and renewable energy systems due to their high energy density, long cycle life, and low self-discharge rate. The sodium analog is still in the research phase, but has significant potential for future development.

Improved Cycling Stability of LiNi Co Mn O Cathode Material via Variable Temperature Atomic Surface Reduction with Diethyl Zinc.

High-Ni-rich layered oxides [e.g., LiNi Co Mn O ; x > 0.

Growth of Hybrid Inorganic/Organic Chiral Thin Films by Sequenced Vapor Deposition.

One of the many challenges in the study of chiral nanosurfaces and nanofilms is the design of accurate and controlled nanoscale films with enantioselective activity. Controlled design of chiral nanofilms creates the opportunity to develop chiral materials with nanostructured architecture. Molecular layer deposition (MLD) is an advanced surface-engineering strategy for the preparation of hybrid inorganic-organic thin films, with a desired embedded property; in our study this is chirality.

Pyrite-induced hydroxyl radical formation and its effect on nucleic acids.

Background: Pyrite, the most abundant metal sulphide on Earth, is known to spontaneously form hydrogen peroxide when exposed to water. In this study the hypothesis that pyrite-induced hydrogen peroxide is transformed to hydroxyl radicals is tested.

Results: Using a combination of electron spin resonance (ESR) spin-trapping techniques and scavenging reactions involving nucleic acids, the formation of hydroxyl radicals in pyrite/aqueous suspensions is demonstrated.