Fabrication and assembly of electrodes are of great importance for the manufacturing of batteries, which are the bridge to transfer electrode materials to devices. Here, we demonstrate a 3D-printing technology for the construction of functional electrodes (including anode and cathode) for zinc-air batteries. The printed anode consists of many zinc micro-spheres that allows the high utilization of the

Recent days, the thermal energy storage (TES) is considered as a promising technology to meet the future energy demands. Thermal energy storage based on phase change material (PCM) as energy storage material due to their low cost and high storage capacity at isothermal condition. Nanoparticle dispersed in Phase Change Material (NDPCM) improves the thermal performance of base PCM by enhancing heat transfer

Rational design and fabrication of SnO2@C composites with tailored structures enables the advanced electrochemical behaviors for the next-generation lithium-ion batteries. Benefiting from the enhanced electronic conductivity and porous structure, the integrated composites deliver the high reversible capacity as well as the outstanding rate capability. A high discharge capacity of 745.7 mAh g−1 is achieved

The direct synthesis of hydrogen peroxide (H2O2) in situ to replace legacy large-scale commercial anthraquinone process is a critical industrial technology required to advance applications in sustainable green chemistry and reduce energy consumption associated with transporting reagents and oxidants. Current state-of-the-art Au–Pd transition metal alloy catalysts show promise to selectively synthesize

The industrial release of antimony (Sb) has caused serious environmental problems and waste of antimony resources in recent years. Herein, we propose a facile approach that can solve these two issues in succession. A promising Sb adsorbent, nitrogen-doped reduced graphene oxide (NGO), was synthesized by a simple hydrothermal method, which further serves as anode materials after Sb adsorption for high-performance

Mixed low-dimensional nanomaterials as recently reported are most likely to achieve high energy gain and photoresponsivity for its quantum confinement properties and strong light-matter interaction. In this work, we have fabricated 1% Au–Bi2Te3, 3% Au–Bi2Te3 and 5% Au–Bi2Te3 mixed low-dimensional materials by using a two-steps chemical method. Both responsivity and photoconversion efficiency of 3%

As a sustainable hydrogen/oxygen production method for the near future, water splitting is still dependent on the appropriate catalysts for acceptable efficiency. Here, for the first time, using silica template, a mesoporous cobalt-cobalt phosphide (Meso-Co/Co2P) electrocatalyst was produced. For investigating its structure, composition, and morphology, X-ray diffraction (XRD), X-ray photoelectron

Carbon-based catalyst towards oxygen reduction reaction (ORR) has been investigated for years, one facile and typical strategy reported by a lot of literature to improve the ORR activity was the high-temperature annealing. Our group has previously studied the annealing process and confirmed the removal of oxygen-containing functional groups (OFGs) would bring benefits to ORR activity. However, the

Carbon materials are among the most important materials used for anodes in rechargeable batteries due to their extensive resources and good cycling stability. However, the electrochemical performance of carbon-based anodes is closely related with their electronic states and morphologies/microstructures. Herein, we present a simple approach to synthesize a nitrogen-doped 3D nanocarbon (N-Carbon) with

In this work, we employed first-principles density functional theory (DFT) calculations to investigate the dynamical and thermal stability of graphene-like ZnX (X = N, P, As) nanosheets. We moreover analyzed the electronic, mechanical and optical properties of these novel two-dimensional (2D) systems. Acquired phonon dispersion relations reveal the absence of imaginary frequencies and thus confirming

A new class of electrolytes with enhanced flexibility, high lithium ion (Li+) conductivity, excellent electrochemical stability, good cyclic ability and improved safety are crucial for high performance of lithium-metal batteries. Composite polymer electrolytes assist in overwhelming safety-related issues faced by Li+ batteries with organic liquid electrolytes. Herein, we report on polymer nanocomposite

Using phase change materials (PCMs) is an efficient technique to thermal management of a thermoelectric generator (TEG) system. In this paper a TEG, integrated with PCMs, is investigated and optimized to achieve maximum thermal to electrical conversion efficiency by the TEG. Finite element simulation of the system performance is implemented in Multiphysics simulation environment. The electrical output

The rapid growth of high-performance metal-free electrocatalysts is of great significance for widespread realization of fuel cells since noble metals (e.g. platinum) used as electrocatalysts have long been considered as major bottleneck which limited their commercialization. Herein, we report the creation of a kind of novel porous carbon framework containing dual heteroatoms (N and S, named as C-CMPs-NS)

The asymmetric capacitors are one of the energy storage systems that provide high energy density and high power density. However, there are some limitations which impede the development of asymmetric capacitors. In this context, we designed a new type of lithium-selenium asymmetric capacitor (LSEC) that has both the capacitive effect and the diffusion-controlled reaction. The LSECs use the activated