Abstract Lithium–sulfur (Li–S) batteries have a high specific capacity, but lithium polysulfide (LPS) diffusion and dendrite growth drastically reduce their cycle life. High discharge rates also necessitate resilience to temperature. Here we show that biomimetic self-assembled membranes from aramid nanofibers (ANFs) address these challenges. Replicating the fibrous structure of cartilage, multifactorial engineering ion-selective mechanical, thermal properties becomes possible. LPS adsorption...

Abstract Polyester‐ and epoxy‐based composites containing glass carbon fibers were manufactured using a vacuum‐assisted resin transfer molding (VARTM) process. Fourier transform infrared (FTIR) spectroscopy analyses conducted to determine the interaction between matrix material. The results indicate that strong was observed fiber epoxy resin. However, weak interactions remaining fiber‐matrix occur. Scanning electron microscopy (SEM) analysis also performed take some information about...

Batteries based on divalent metals, such as the Zn/Zn2+ pair, represent attractive alternatives to lithium-ion chemistry due their high safety, reliability, earth-abundance, and energy density. However, archetypal Zn batteries are bulky, inflexible, non-rechargeable, contain a corrosive electrolyte. Suppression of anodic growth dendrites is essential for resolution these problems requires materials with nanoscale mechanics sufficient withstand mechanical deformation from stiff dendrites....

The development of high-efficiency and cost-efficient oxygen evolution reaction (OER) catalysts is a core issue in the sector water electrolysis. Cobalt–molybdenum bimetal oxide (Co2Mo3O8), as kind non-noble transition-metal oxides, broadly employed good OER catalyst due to its abundant active sites. However, relatively low conductivity Co2Mo3O8 limits further improvement electrocatalytic performance. Herein, cobalt nanoparticle-modified flakes are embedded into flower-like N-doped carbon...

Nowadays, rationally preparing heterostructure materials can not only make up for the shortage of individual components, but also exert unexpected performance through synergistic interactions between components. Herein, a core-shell WS2@NiCo2O4 screw-like arrays grown on carbon cloth (CC) was prepared by two-step solvothermal method supercapacitors. As binder-free flexible electrode, high areal capacitance 2449.9 mF cm-2 be achieved WS2@NiCo2O4/CC at current density 1 mA cm-2. Benefiting...

Polysulfide shuttle and lithium dendrite formation limit practical applications of lithium-sulfur (Li-S) batteries. To address these issues, we propose a nacre-inspired design MXene/aramid nanofiber (ANF) separator with "brick-and-mortar" microstructure. The combination shortened ion transfer distance generated by holes on MXene enlarged interlayer spacing provided ANFs creates hierarchical path "highway" that modulates the efficiency transportation while synergistically suppressing...

Abstract The primary purpose of the study is to investigate temperature dependence heat capacity and thermal conductivity composites having different fiber/matrix combinations by means heat‐flux differential scanning calorimetry (DSC). materials used as samples in this were epoxy‐ polyester‐based composites. Noncrimp stitched glass, carbon, aramid fabric reinforcements for making unidirectional For measurements composite sample a standard material are separately subjected same linear...

A major challenge in the field of photocatalytic carbon dioxide (CO₂) reduction is to design catalyst systems featuring high selectivity for CO production, long-term stability and a composition Earth-abundant elements.

Abstract This paper describes the production of graphene nanocomposites via melt mixing thermally reduced graphite oxide with ethylene vinyl‐acetate copolymers different (0–70 wt%) vinyl acetate content, and their measured electrical rheological properties. The aim these studies was to investigate influence a continually changing polymer matrix polarity on dispersion percolating behavior fillers, an effect that can be expected most prominent high specific surfaces latter. Composites...

Abstract The primary purpose of the study is to evaluate and compare mechanical properties epoxy‐based composites having different fiber reinforcements. Glass carbon composite laminates were manufactured by vacuum infusion epoxy resin into two commonly used noncrimp stitched fabric (NCF) types: unidirectional biaxial fabrics. effects geometric variables on structural integrity strength illustrated. Hence, tensile three‐point bending flexural tests conducted up failure specimens strengthened...

Abstract The primary purpose of this study is to investigate the anisotropic behavior different glass‐fabric‐reinforced polyester composites. Two commonly used types traditional glass fabrics, woven roving fabric and chopped strand mat, have been used. Composite laminates manufactured by vacuum infusion resin into fabrics. effects geometric variables on composite structural integrity strength are illustrated. Hence, tensile three‐point‐bending flexural tests conducted at off‐axial angles (0,...

Abstract Complex physical behavior of ethylene‐vinylacetate (EVA)/nickel composites was investigated in this article. The presence Ni EVA matrix leads to an increase surface hydrophilicity. peel strength adhesive joints EVA/nickel aluminum is sharply increased up 10 vol% Ni, followed by a subsequent decrease. are highly elastic and deformable. Young's modulus increases steeply only for concentrations 15 vol%. thermal conductivity significantly the nickel. An interesting correlation between...

Polymeric composites were prepared using ethylene-vinylacetate (EVA) matrix and expanded graphite (EG). Mechanical properties investigated it was found that Young's modulus the yield stress of EVA-EG significantly increased with content. However, for higher EG content became brittle. The dependence at break reached maximum 30 vol.% filler. morphology both filler transmission electron microscopy Raman spectroscopy. All these structural characterizations indicated partial exfoliation within...

Abstract The primary purpose of the study is to investigate anisotropic behavior different noncrimp stitched fabric (NCF) reinforced polyester composites. Carbon fiber composite laminates were manufactured by vacuum infusion resin into two commonly used advanced carbon types, unidirectional and biaxial fabric. effects geometric variables on structural integrity strength illustrated. Hence, tensile three‐point bending flexural tests conducted up failure specimens strengthened with layouts...

Abstract The purpose of this article is to determine the structure γ‐glycidoxypropyltrimethoxysilane (γ‐GPS) on glass fiber surfaces. interfacial adhesion fiber–polymer can be improved by silane treatment fiber. To change composition and regenerate hydroxyl groups, activation pretreatment heat cleaned woven fabric was performed using a 10% (v/v) hydrochloric acid aqueous solution for different durations before treatment. silanization activated fibers with were conducted at various time...