Uniformly dispersing SbSe nanoparticles in porous carbon as an anode material for enhancing sodium storage capacity.

About 60 nm SbSe nanoparticles are uniformly embedded in a porous carbon substrate to prepare a SbSe/C composite through a combination of pyrolysis reduction and solid-phase selenization. The SbSe/C anode exhibits excellent sodium storage capacity. The initial discharge capacity is up to 420 mA h g at 0.

Non-carbonization annealing toward regulation of cobalt-based organic-inorganic hybrids as advanced electrocatalysts for water splitting.

High-temperature carbonization typically used in the preparation of advanced electrocatalysts poses significant challenges in preserving abundant functional groups essential for reactant adsorption and component stabilization. To address this, a solvothermal synthesis followed by non-carbonization annealing approach is proposed to fabricate a series of cobalt-based organic-inorganic hybrids derived from cobalt-based glycerate nanospheres (GNs). Notably, annealing in phosphorous and inert atmospheres preserves the solid nanospherical structure, whereas treatment in sulfur-rich environments results in the formation of hollowed nanospheres.

Sb nanoparticles embedded uniformly on the surface of porous carbon fibres for high-efficiency sodium storage.

Sb nanoparticles (∼50 nm) are embedded uniformly on the surface of carbon fibers (Sb NPs-SCFs) without scattered Sb NPs. The Sb NPs-CNFs anode exhibits excellent sodium storage, delivering a second cycle discharge capacity of 455.7 mA h g at 1.

Coordination Regulation Strategy in Fabricating BiS@CNFs Composites with Uniform Dispersion for Robust Sodium Storage.

To solve large volume change and low conductivity of BiS-based anodes, a coordination regulation strategy is proposed to prepare BiS nanoparticles dispersed in carbon fiber (BiS@CNF) composites. It has been discovered that introducing trimesic acid as a ligand can significantly improve the loading and dispersion of Bi in polyacrylonitrile fibers. The results exhibit that BiS nanoparticles of 200-300 nm are uniformly anchored on the superficial surface layer of CNFs, and BiS nanoparticles of about 20 nm are evenly dispersed in the interior of CNFs.

CoP/CoP embedded in N, P, S triply-doped hollow carbon towards enhanced oxygen electrocatalysis.

Simultaneously dispersing phosphide crystallites and multiple heteroatoms in hollow carbon is a significant yet challenging task for achieving high-performance oxygen electrocatalysts of zinc-air batteries. Herein, a simple wrapping-pyrolysis strategy is proposed to prepare CoP/CoP embedded in N, P, S triply-doped hollow carbon (CoP/CoP@NPS-HC). CoP/CoP@NPS-HC composite features hollow polyhedral structure populated with numerous catalytically active CoP/CoP nanoparticles and N, P, S heteroatoms.

Advances in Functional Organosulfur-Based Mediators for Regulating Performance of Lithium Metal Batteries.

Rechargeable lithium metal batteries (LMBs) are promising next-generation energy storage systems due to their high theoretical energy density. However, their practical applications are hindered by lithium dendrite growth and various intricate issues associated with the cathodes. These challenges can be mitigated by using organosulfur-based mediators (OSMs), which offer the advantages of abundance, tailorable structures, and unique functional adaptability.

Modulating Coordination of Iron Atom Clusters on N,P,S Triply-Doped Hollow Carbon Support towards Enhanced Electrocatalytic Oxygen Reduction.

Constructing atom-clusters (ACs) with in situ modulation of coordination environment and simultaneously hollowing carbon support are critical yet challenging for improving electrocatalytic efficiency of atomically dispersed catalysts (ADCs). Herein, a general diffusion-controlled strategy based on spatial confining and Kirkendall effect is proposed to construct metallic ACs in N,P,S triply-doped hollow carbon matrix (M /NPS-HC, M=Mn, Fe, Co, Ni, Cu). Thereinto, Fe /NPS-HC with the best catalytic activity for oxygen reduction reaction (ORR) is thoroughly investigated.

Synergistic coupling of IrNi/Ni(OH)nanosheets with polypyrrole and iron oxyhydroxide layers for efficient electrochemical overall water splitting.

The design of electrocatalysts with excellent activity and stability for overall water splitting is highly desirable, and remains a challenge. Constructing heterojunctions onto the same substrate is beneficial for the integration of a water-splitting reaction. Herein, self-supported IrNi/Ni(OH)@PPy and IrNi/Ni(OH)@FeOOH are fabricated by coupling polypyrrole (PPy) and iron oxyhydroxide (FeOOH) on IrNi/Ni(OH)nanosheets array, respectively.

A CTAB-mediated antisolvent vapor route to shale-like CsPbBr microplates showing an eminent photoluminescence.

Compared with nanoscale quantum dots (QDs), the large-sized perovskite crystals not only possess better stability but also are convenient for application exploration. Herein, we develop a facile and efficient antisolvent vapor-assisted recrystallization approach for the synthesis of large-sized CsPbBr perovskite crystal microplates. In this method, for the first time, the shale-like CsPbBr microplates with lateral dimensions of hundreds of microns are fabricated by employing cetyltriethylammnonium bromide (CTAB) as a morphology-directing agent.