A ZnSe/MoSe₂@C composite was fabricated as a high performance anode material for LIBs/SIBs.

Abstract Shuttle effect and sluggish redox kinetics of sulfur species still hinder the practical application lithium‐sulfur batteries (LSBs). Herein, a strategy integrating sub‐nano catalysts into metal‐organic framework (MOF) is proposed for developing efficient host to tackle these issues. The designed MOF (MOF‐TOC) endowed with TiO clusters (TOCs) in mesopores can act as an reaction chamber LSBs. Systematic electrochemical measurements calculations demonstrate that MOF‐TOC trap confine...

Abstract Developing an optimal multifunctional flame‐retardant separator is crucial for enhancing lithium metal battery (LMB) safety. However, this task poses challenges due to the inferior electrochemical stability and limited ion transport of most fire retardant‐based coatings. In work, core–shell structured matrix elaborated by in situ growing a thin layer MOF armor onto ammonium polyphosphate (APP) bulk materials further manufacture (APP@ZIF‐8@PP). The acts as both protector regulator,...

Abstract The development of highly efficient catalysts to address the shuttle effect and sluggish redox kinetics lithium polysulfides (LiPSs) in lithium‐sulfur batteries (LSBs) remains a formidable challenge. In this study, series multi‐site catalytic metal‐organic frameworks (MSC‐MOFs) were elaborated through multimodal molecular engineering regulate both reactant diffusion catalysis processes. MSC‐MOFs crafted with nanocages featuring collaborative specific adsorption/catalytic interfaces...

Nanorods of SnO2 have successfully been prepared by calcining precursors that are produced in inverse microemulsions. The water/oil microemulsions used to prepare the form an ideal nanostructural reactor for producing monodispersed nanoparticles, which can then decompose nanorods (see Figure). mechanism formation nucleation and growth processes is discussed.

In the present work, nanocomposite of MoO2-ordered mesoporous carbon (MoO2–OMC) was synthesized for first time using a thermal reduction route and as nanoreactor. The characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), N2 adsorption–desorption, scanning electron microscopy (SEM), transmission (TEM) measurements. Furthermore, this used an anode material Li-ion intercalation exhibited large reversible capacity, high rate performance, good cycling stability. For...

It is urgent yet challenging to develop photocatalysts for visible-light-driven CO2 reduction with high efficiency and selectivity. Here, we report a novel hybrid catalyst by coordinating zero-dimensional (0D) carbon nitride quantum dots (g-CNQDs) two-dimensional (2D) ultrathin porphyrin MOF (PMOF). Different from previously reported catalysts combined through physical or electrostatic interactions, in our prepared g-CNQDs/PMOF hybrids, g-CNQDs are coordinated Co active sites PMOF, which...

A nanocomposite of ordered mesoporous pure anatase TiO2–C was successfully synthesized for the first time by using carbon as a nano-reactor and exhibited short-range structure. It found that coated on surface TiO2 nanoparticles to form thin layer. Using this material an anode in rechargeable lithium-ion batteries, it displayed large reversible capacity, high rate performance excellent long-term cycling stability. For instance, capacity 166 mA h g−1 average Coulombic efficiency 99.7% could be...

Germanium-based nanostructures are receiving intense interest in lithium-ion batteries because they have ultrahigh lithium ion storage ability. However, the anodes undergo considerably large volume change during charge/discharge processes, leading to a fast capacity fade. In present work, Ge/GeO2-ordered mesoporous carbon (Ge/GeO2–OMC) nanocomposite was successfully fabricated via facile nanocasting route by using as nanoreactor, and then used an anode for batteries. Benefited from its...

A composite of MoSe₂/CMK-5 was fabricated through a nanocasting route, in which ultra-thin two-dimensional MoSe₂ nanosheets were encapsulated the mesopores CMK-5, exhibiting improved electrochemical performance for lithium-ion batteries.

Both configuration match and electronic structure are vital for catalysts to efficiently promote the conversion of lithium polysulfides (LiPSs) in lithium–sulfur batteries (LSBs), which however difficult tailor traditional that generally have a single active center. Herein, series dual-active-center MOFs (D-MOFs) were elaborated manipulate distance between different polar sites regulate metal center, can long-chain LiPSs optimize metal–sulfur orbital hybridization. Moreover, situ axial...

Developing highly efficient catalysts, characterized by controllable pore architecture and effective utilization of active sites, is paramount in addressing the shuttle effect sluggish redox kinetics lithium polysulfides (LiPSs) lithium–sulfur batteries (LSBs), which, however, remains a formidable challenge. In this study, hierarchical porous catalytic metal–organic framework (HPC-MOF) with both appropriate porosity abundant exposed sites achieved through time-controlled precise engineering....

Abstract The development of solid‐state electrolytes (SSEs) with outstanding comprehensive performance is currently a critical challenge for achieving high energy density and safer batteries (SSBs). In this study, strategy nano‐confined in situ solidification proposed to create novel category molten guest‐mediated metal–organic frameworks, named MGM–MOFs. By embedding the newly developed crystalline organic electrolyte (ML 20 ) into nanocages anionic MOF–OH, MGM–MOF–OH, characterized by...

Abstract In the present work, a hierarchical composite of rose‐like VS 2 @S/N‐doped carbon (VS @SNC) with expanded (001) planes is successfully fabricated through facile synthetic route. Notably, d ‐spacing to 0.92 nm, which proved dramatically reduce energy barrier for Li + diffusion in @SNC by density functional theory calculation. On other hand, S/N‐doped greatly promotes electrical conductivity and enhances structural stability. addition, structure facilitates rapid electrolyte increases...

Sodium/potassium-ion batteries (SIBs/PIBs) arouse intensive interest on account of the natural abundance sodium/potassium resources, competitive cost and appropriate redox potential. Nevertheless, huge challenge for SIBs/PIBs lies in scarcity an anode material with high capacity stable structure, which are capable accommodating large-size ions during cycling. Furthermore, using sustainable biomass to fabricate electrodes energy storage applications is a hot topic. Herein, ultra-small...

Abstract Hierarchically structured LiFePO 4 was successfully synthesized by ionic liquid solvothermal method. These hierarchically samples were constructed from nanostructured platelets with their (010) facets mainly exposed. To the best of our knowledge, facet control a hierarchical crystal has not been reported yet. Based on series experimental results, tentative mechanism for formation these structures proposed. After coated thin carbon layer and used as cathode materials lithium-ion...

A Se/CMK-3 composite was <italic>in situ</italic> synthesized, exhibiting large capacity, high rate performance and excellent long-term cycling stability for Li-ion intercalation.

A hierarchically porous nanocomposite of few-layer MoSe2/nitrogen-doped carbon (MoSe2/NC) has been synthesized through an efficient route combining a sol–gel method and annealing techniques. Furthermore, lithium-ion-based dual-ion battery configuration using the MoSe2/NC as anode commercial graphite cathode (MoSe2/NC-G Li-DIB) proposed for first time demonstrated reversible discharge capacity 86 mA h g–1 at 2C (1C = 100 g–1) after 150 cycles high rate capability up to 76 even 20C within...