Similar Publications

To efficiently capture, activate, and transform small molecules, metalloenzymes have evolved to integrate a well-organized pocket around the active metal center. Within this cavity, second coordination sphere functionalities are precisely positioned to optimize the rate, selectivity, and energy cost of catalytic reactions. Inspired by this strategy, an artificial distal pocket defined by a preorganized 3D strap is introduced on an iron-porphyrin catalyst (sc-Fe) for the CO-to-CO electrocatalytic reduction.

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Photocatalytic technology for removing organic dye pollutants has gained considerable attention because of its ability to harness abundant solar energy without requiring additional chemical reagents. In this context, YF spheres doped with Yb, Er, Tm (YF) are synthesized using a hydrothermal method and are subsequently coated with a layer of graphitic carbon nitride (g-CN) with Au nanoparticles (NPs) adsorbed onto the surface to create a core-shell structure, designated as YF: Yb, Er, Tm@CN-Au (abbreviated as YF@CN-Au). The core-shell composites demonstrate remarkable stability, broadband absorption, and exceptional photocatalytic activity across the ultraviolet (UV) to near-infrared (NIR) spectral range.

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Magnetopyrite FeS modified with N/S-doped carbon as a synergistic electrocatalyst for lithium-sulfur batteries.

J Colloid Interface Sci

January 2025

College of Physics and Electronic Information, Yunnan Normal University, 650500 Kunming, China. Electronic address:

Rational design of effective cathode host materials is an effective way to solve the problems of serious shuttle and slow conversion of polysulfides in lithium-sulfur batteries (LSBs). However, the redox reaction of sulfur differs from conventional "Rocking chair" type batteries and involves a cumbersome phase transition process, so a single-component catalyst cannot consistently and steadily enhance the reaction rate throughout the redox process. In this work, a hybrid composed of magnetopyrite FeS catalyst-modified with N/S-doped porous carbon spheres (FeS@NSC) is proposed as a novel sulfur host to synergistically promote the adsorption and redox catalysis conversion of polysulfides.

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Permanent Nanobubbles in Water: Liquefied Hollow Carbon Spheres Break the Limiting Diffusion Current of Oxygen Reduction Reaction.

J Am Chem Soc

January 2025

Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee, Knoxville, Tennessee 37996, United States.

Porous liquids have traditionally been designed with sterically hindered solvents. Alternatively, recent efforts rely on dispersing microporous frameworks in simpler solvents like water. Here we report a unique strategy to construct macroporous water by selectively incorporating hydrophilicity on the surfaces of hydrophobic hollow carbon spheres (HCS).

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CO Reduction at a Borane-Modified Iron Complex: A Secondary Coordination Sphere Strategy.

Angew Chem Int Ed Engl

January 2025

Department of Chemistry, Western University, 1151 Richmond Street, London, ON, N8K 3G6, Canada.

This work addresses fundamental questions that deepen our understanding of secondary coordination sphere effects on carbon dioxide (CO) reduction using derivatized hydride analogues of the type, [Cp*Fe(diphosphine)H] (Cp* = CMe ) - a well-studied family of organometallic complex - as models. More precisely, we describe the general reactivity of [(Cp*-BR)Fe(diphosphine)H], which contains an intramolecularly positioned Lewis acid, and its cooperative reactivity with CO. Control experiments underscore the critical nature of borane incorporation for transforming CO to reduced products, a reaction that does not occur for unfunctionalized [Cp*Fe(diphosphine)H].

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