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Catalysis is the increase in the rate of a chemical reaction by the addition of a reagent — the catalyst — that is not itself consumed. The catalyst works by opening up a route between starting material and product with a lower activation barrier than the uncatalyzed process.
Aqueous batteries have drawbacks related to their low energy densities. Now, highly concentrated hetero-halogen electrolytes can be used to enable fast multielectron transfer, leading to cost-effective, reversible and high-energy-density aqueous batteries.
Understanding the ways by which metal-containing catalysts carry out a reaction is a chemical puzzle. Now, investigations of a multi-metallic molecular system uncover how the self-assembly of molecular catalysts facilitates cooperation between active species and improves the conversion of water to hydrogen gas.
An innovative solid-state lithiation strategy allows the exfoliation of layered transition-metal tellurides into nanosheets in an unprecedentedly short time, without sacrificing their quality. The observation of physical phenomena typically seen in highly crystalline TMT nanosheets opens the way to their use in applications such as batteries and micro-supercapacitors.
A highly efficient stereoselective C−H alkylation of indoles with aryl alkenes is achieved by sustainable iron catalysis, leading to atropoenriched and enantioenriched substituted indoles with high structural diversity. Detailed mechanistic studies by experiment, Mössbauer spectroscopy and computation reveal the origin of the catalytic efficacy and stereoselectivity.
This protocol details methods for using methanol in methylation reactions, including the synthesis of suitable transition metal-containing catalysts, and in the synthesis of heterocycles. The methods described produce only H2 and H2O as by-products.
Considerable attention has been directed towards chiral nanocatalysts due to their significant role in facilitating asymmetric organic transformations. Here the authors highlight the recent advancements and notable examples in the field of chiral inorganic nanocatalysts.
The conversion of atmospheric N2 into NH3 under ambient pressure is highly interesting but very challenging. In this study, the authors present a tandem air-NOx and NOx-NH3 system that combines non-thermal plasma-enabled N2 oxidation with Ni(OH)x/Cu-catalyzed electrochemical NOx−reduction, resulting in a high NH3 yield from N2 under ambient pressure conditions.
Rhodium catalysts confined in zeolite pores exhibit high regioselectivity in the hydroformylation process of propene to high-value n-butanal, surpassing the performance of all heterogeneous and most homogeneous catalysts developed so far.
The use of data science tools in catalysis research has experienced a surge in the past 10–15 years. This Review provides a holistic overview and categorization of the field across the various approaches and subdisciplines in catalysis.
Aqueous batteries have drawbacks related to their low energy densities. Now, highly concentrated hetero-halogen electrolytes can be used to enable fast multielectron transfer, leading to cost-effective, reversible and high-energy-density aqueous batteries.
Understanding the ways by which metal-containing catalysts carry out a reaction is a chemical puzzle. Now, investigations of a multi-metallic molecular system uncover how the self-assembly of molecular catalysts facilitates cooperation between active species and improves the conversion of water to hydrogen gas.
An innovative solid-state lithiation strategy allows the exfoliation of layered transition-metal tellurides into nanosheets in an unprecedentedly short time, without sacrificing their quality. The observation of physical phenomena typically seen in highly crystalline TMT nanosheets opens the way to their use in applications such as batteries and micro-supercapacitors.
Typically thought of as inert and non-participating atoms, noble gasses adsorbed onto freshly cleaved single crystal surfaces enhance their electronic band structures, potentially creating more active heterogeneous catalysts.