As an essential part of the performance improvement of lithium metal batteries, the acquisition of dense (LiF-rich solid electrolyte interphase (SEI)) has always been an urgent problem to be solved. Herein, we synthesized Zeolitic Imidazolate Frameworks (ZIFs) modified by two different functional groups (–NH2, –CH3) and used them as the fillers of polyethylene oxide (PEO) composite solid electrolytes

Insufficient metabolic energy, in the form of adenosine triphosphate (ATP), and bacterial infections are among the main causes for the development of chronic wounds. Previously we showed that the physiological inorganic polymer polyphosphate (polyP) massively accelerates wound healing both in animals (diabetic mice) and, when incorporated into mats, in patients with chronic wounds. Here, we focused

The architecture and surface modifications have been regarded as effective methods to enhance the biological response of biomaterials in bone tissue engineering. The porous architecture of the implantation was essential conditions for bone regeneration. Meanwhile, the design of biomimetic hydroxyapatite (HAp) coating on porous scaffolds was demonstrated to strengthen the bioactivity and stimulate osteogenesis

Bone tissue engineering (BTE) has proven to be a promising strategy for bone defect repair. Due to its excellent biological properties, gelatin methacrylate (GelMA) hydrogels have been used as bioinks for 3D bioprinting in some BTE studies to produce scaffolds for bone regeneration. However, applications for load-bearing defects are limited by poor mechanical properties and a lack of bioactivity. In

The improvement of catalysts’ stability under harsh reaction conditions is vital for their practical applicability. Herein, iron carbide (Fe3C) nanoparticles were encapsulated in graphitic carbon in situ and a carbon ball served as the carrier. The synthesized Fe3C@C/C was first utilized to treat an m-cresol wastewater containing Si via catalytic ozonation. Compared with the commercial Fe/Al2O3 catalyst

The additive manufacturing of multi-principal element alloys has remarkable potential for industrial applications. In this study, a (CoCrNi)94Al3Ti3 medium-entropy alloy (MEA) with adequate strength-ductility synergy was prepared via laser powder bed fusion. The microstructural evolution, mechanical property, and deformation mechanisms of the MEA were investigated after post annealing for a short period

Rapid solidification in undercooled Ni-18.7 at.%Sn eutectic melts was observed in-situ by a high-speed high-resolution camera and the microstructures were characterized in detail by electron backscattering diffraction. For the first time, the exact crystallographic orientation relations (ORs) between HCP-Ni3Sn (α-Ni) subsets were analyzed. For HCP-Ni3Sn, the {112¯1}<1¯1¯26> and/or {112¯2}<112¯3¯> twin

Spreading twins throughout nano metals has been proved to effectively mediate the mechanical behaviors in face-centered-cubic (fcc) metals. However, the experimental investigation concerning the roles of twin boundary (TB) during deformation is rarely reported. Here, with the joint efforts of in-situ nanomechanical testing and theoretical studies, we provide a systematic investigation regarding the

Hydrogen is a clean and flexible energy carrier that has the promising to satisfy urgent demands of the energy crisis and environmental protection. Electrochemical hydrogen evolution reaction (HER), a critical half-reaction in water splitting, is one of the greenest and most common methods to obtain high-purity hydrogen. Designing preeminent activity and stability electrocatalysts for hydrogen precipitation

Tensile and bending properties are two critical attributes of press hardened steels (PHSs) for automotive body structural components. However, the research on these properties of PHSs with retained austenite (RA), which is introduced to improve the mechanical properties, has not been well reported. In this study, the effect of RA on the quasi-static uniaxial tensile and three-point bending behaviors

The coarsening-grained single-phase face-centered cubic (fcc) medium-entropy alloys (MEAs) normally exhibit insufficient strength for some engineering applications. Here, superior mechanical properties with ultimate tensile strength of 1.6 GPa and fracture strain of 13.1% at ambient temperature have been achieved in a (CoCrNi)94Ti3Al3 MEA by carefully architecting the multi-scale heterogeneous structures

Bone organoids, which simulate and construct special organs in vitro with complex biological functions based on tissue engineering technology, provide dramatically realistic models for bone regenerative medicine development and lay the foundation for a new therapeutic strategy. The matrix microenvironment around tissues and cells plays a key role in the physiological functions and phenotypes of bone

The effect of hydrogen on the surface morphology and nanomechanical properties of Ni-based Alloy 725 under solution-annealed (SA) and precipitation-hardened (API) conditions was thoroughly studied. The investigation involved in situ nanoindentation testing, microscopy characterization, statistical analysis, and numerical simulation approaches. The results showed the distinctive effects of hydrogen

Due to unique electrical properties and high catalytic efficiency, transition metal nitrogen-codoped carbide (TM–N–C) has attracted tremendous interest as a multifunctional electrocatalyst for water splitting. Unlike traditional single-source modification, herein a novel pomegranate-like high-entropy (HE) electrocatalyst of Ni3ZnC0.7 decorated with homogeneous multimetal (Fe, Co, Cu, and Ni) nitrogen-codoped

In comparison to inorganic counterparts, organic semiconducting (OSC) crystalline films are promising for building large-area and flexible ionizing radiation detectors for X-ray imaging or dosimetry due to their tissue equivalence, simple processing and large-scale production accessibility. Fabrication processes, however, hinder the ability to generate aligned and large-area films with high carrier

Macro- and micro-segregation formed upon twin-roll casting (TRC) can be inherited from sub-rapid solidification to solid-state transformation, even to plastic deformation, thus deteriorating drastically mechanical properties of as-produced thin sheets. Although many works focusing mainly on controlling fields of thermal, concentration and convection have been reported, how to control artificially and

Doping is a reasonable solution to improve the electronic structure and surface properties of nanomaterials. Herein, we propose a rapid and simple methodology, flame synthesis, as an effective preparation strategy for incorporating high-valence metal ions (Ti4+, Sn4+, and Zr4+) into ultrasmall Fe2O3 on carbon nanotube support (i.e., M-FeO–CNT). The resulting materials exhibit not only a boosted Na+

A large adiabatic temperature change (∆Tad) is a prerequisite for the application of elastocaloric refrigeration. Theoretically, a large volume change ratio (∆V/V0) during martensitic transformation is favorable to enhance ∆Tad. However, the design or prediction of ∆V/V0 in experiments is a complex task because the structure of martensite changes simultaneously when the lattice parameter of austenite

Rational manipulation of multi-metal hybrids with controllable compositions and constructions is evolving as an efficacious strategy for tunable electromagnetic (EM) characteristics and EM wave (EMW) absorption. Herein, a novel bi-orientation etching approach is proposed to regulate the chemical compositions and hybridization construction of Zn/Co hybrids, thence meeting the synergistic interaction

Additive manufacturing (AM) of ceramic matrix composites (CMCs) has enabled the production of highly customized, geometrically complex and functionalized parts with significantly improved properties and functionality, compared to single-phase ceramic components. It also opens up a new way to shape damage-tolerant ceramic composites with co-continuous phase reinforcement inspired by natural materials

Carbon-based adsorption and TiO2-based photocatalysis are both safe and low-cost ways of pollutant purification. Constructing C-TiO2 architectures can effectively improve removal efficiency. However, most of those carbon frames only acted as supporting substrates, exhibiting rather limited synergistic action from TiO2 and carbon. Herein, Fe/N co-doped nano-TiO2 wrapped on mesoporous carbon spheres

In this work, pure Cu with excellent strength and ductility (UTS of 271 MPa, elongation to fracture of 43.5%, uniform elongation of 30%) was prepared using cold spray additive manufacturing (CSAM), realizing a breakthrough in the field. An in-depth investigation was conducted to reveal the microstructure evolution, strengthening and ductilization mechanisms of the CSAM Cu, as well as the single splats

This study investigated the characteristics of corrosion products formed on the contact and exposed regions of C1045 steel bolt and nut fasteners used in structures exposed to aqueous chloride environments. The corroded surface morphology, rust compositions, and corrosion kinetics of the bolt specimen were studied by visual observation, optical microscopy (OM), scanning electron microscopy (SEM), X-Ray

The explosive development of electronic devices and wireless communication technology gives rise to the issue of electromagnetic pollution, known as electromagnetic interference (EMI). The accumulation of undesirable electromagnetic radiation in space disturbs the normal function of unshielded electronic appliances and poses seriously threat to human health. Thus, the development of EMI shielding materials

Precipitation strengthening provides one of the most widely-used mechanisms for strengthening multi-principal-element alloys (MPEAs). Here, we report dual-morphology B2 precipitates in Co36Cr15Fe18Ni18Al8Ti4Mo1 MPEA obtained by thermo-mechanical processing. Electron microscopy characterization reveals that the dual-morphology B2 precipitates are either recrystallized B2 particles formed at the grain

Forced mixing to a single-phase or supersaturated solid solution (SSS) and its prerequisite microstructure evolution in immiscible systems has been a focus of research for fundamental science and practical applications. Controlling the formation of SSS by shear deformation could enable a material design beyond conventional equilibrium microstructure in immiscible systems. Here, a highly immiscible

Intentional solute segregation at grain boundary (GB) can effectively stabilize the nanograined alloys by reducing the excess energy and mobility of GB, but it usually works for binary alloys with sufficient GB segregation tendency. Here, we found that the segregation of Cr can be enhanced in a nanostructured Fe-8Cr alloy with insufficient GB segregation tendency through the interaction of another

While photoreduction of CO2 to CH4 is an effective means of producing value-added fuels, common photocatalysts have poor activity and low selectivity in photocatalytic CO2-reduction processes. Even though creating defects is an effective photocatalyst fabrication route to improve photocatalytic activity, there are some challenges with the facile photocatalyst synthesis method. In this work, an O element

Stable, efficient and high color rendering index all-inorganic color converters are urgently demanded for white laser diodes. Phosphor-in-glass (PiG), possessing the advantages of phosphors excellent quantum efficiency as well as favorable chemical and thermal stability of glass, has attracted widespread attention. There have been only very few reports of Y1.31Ce0.09Gd1.6Al5O12 (Ce:GdYAG) PiG for solid-state

Hard secondary phases usually strengthen alloys at the expense of ductility. In this work, we made a dual-phase CrCoNi-O alloy containing a face centered cubic matrix and chromium oxide. On one side, the dispersed chromium oxide nano-particles impeded dislocation movement and increased the strength of the alloy. On another side, the spreading lattice distortion in CrCoNi-O high entropy solution locally

Bulk metallic glass composites (BMGCs) are proven to be excellent candidates for cryogenic engineering applications due to their remarkable combination of strength, ductility and toughness. However, few efforts have been done to estimate their wear behaviors that are closely correlated to their practical service. Here, we report an improvement of ∼ 48% in wear resistance for a Ti-based BMGC at the

The martensitic transformation (MT) lays the foundation for microstructure and performance tailoring of many engineering materials, especially steels, which are with > 1.8 billion tons produced per year the most important material class. The atomic-scale migration path is a long-term challenge for MT during quenching in high-carbon (nitrogen) steels. Here, we provide direct evidence of (11¯2) body-centred

Photo-induced self-healing composites have attracted more and more attention as a kind of materials that can be controlled remotely and accurately in real time. Here, we report a strategy of a photo-responsive system based on hydrogen and ion bonds capable of performing self-healing process by ultraviolet wavelengths, which is covalently cross-linked zinc-dimethylglyoxime-polyurethane coordination

Additive manufacturing is believed to open up a new era in precise microfabrication, and the dynamic microstructure evolution during the process as well as the experiment-simulation correlated study is conducted on a prototype multi-principal-element alloys FeCrNi fabricated using selective laser melting (SLM). Experimental results reveal that columnar crystals grow across the cladding layers and the

321 phases are an atypical series of MAX phases, in which A = As/P, with superior elastic properties, featuring in the MA-triangular-prism bilayers in the crystal structure. Until now, besides Nb3As2C, the pure phases of the other 321 compounds have not been realized, hampering the study of their intrinsic properties. Here, molten-salt sintering (MSS) and solid-state synthesis (SSS) were applied to

In order to further understand high-temperature deformation behavior and its-related mechanical properties, the Portevin–Le Chatelier (PLC) effect in an Fe–19Cr–13Ni–0.2C austenitic stainless steel was investigated using high-temperature digital image correlation (DIC) analysis. Under the tensile testing at temperatures from 473 to 623 K, different types of serrated flow appeared even at a constant

The development of graphene-based composites with low density, robust absorption, wide bandwidth and thin thickness remained a great challenge in the field of electromagnetic (EM) absorption. In this work, nitrogen-doped reduced graphene oxide/hollow cobalt ferrite (NRGO/hollow CoFe2O4) composite aerogels were constructed by a solvothermal and hydrothermal two-step route. Results demonstrated that

Developing excellent absorption-dominant electromagnetic interference (EMI) shielding composites is an urgent demand for the rapid development of 5 G technology and electronic equipment. Herein, a simple strategy is employed to fabricate carbon nanotubes-polypropylene fibers (CP) /polypropylene-glass fibers felt (PGFF)/Fe3O4 composites with superior EMI shielding effectiveness and low reflection due