Abstract Li‐rich oxides can be regarded as the next‐generation cathode materials for high‐energy‐density Li‐ion batteries since additional oxygen redox activities greatly increase output energy density. However, loss and structural distortion induce low initial coulombic efficiency severe decay of cycle performance, further hindering their industrial applications. Herein, representative layered material, Li 1.2 Ni 0.2 Mn 0.6 O 2 , is endowed with novel single‐crystal morphology. In...

Compared with the polycrystal (PC) Ni-rich cathode materials, single-crystal (SC) counterpart displayed excellent structural stability, high reversible capacity and limited voltage decay during cycling, which received great attention from academics industry. However, origin of fascinating high-voltage stability within SC is poorly understood yet. Herein, we tracked evolution phase transitions, in destructive volume change H3 formation presented PC, are effectively suppressed when cycling at...

Abstract Typical Li‐rich layered oxides are widely regarded as promising cathode candidates for high‐energy‐density Li‐ion batteries because of additional output capacities boosted by oxygen redox activities. However, its commercialized applications hindered serious capacity loss and voltage decay related to structural degradation upon cycling. Herein, a Co/Ni‐free biphasic O2/O3‐type material is proposed, Li 0.9 [Li 0.3 Mn 0.7 ]O 2 , which has been successfully prepared the + /Na...

Abstract The use of zinc (Zn) metal as an anode in aqueous batteries offers eco‐friendly and cost‐effective energy storage solution. However, Zn dendrite formation severely restricts the cycle life battery toward practical application. Herein, a commercially hydrophilic polytetrafluoroethylene (PTFE) membrane is demonstrated separator to significantly extend anode. In contrast with conventional fragile glass fiber separator, wetted PTFE exhibited high mechanical strength (stress 34.3 MPa at...

In order to prepare a chitosan-based antibacterial film with excellent mechanical properties and study its properties, the tape casting method was used composite from chitosan, glycerin thyme essential oil. Through single factor test response surface optimization test, tensile strength elongation at break were as indicators better physical water vapor permeability, solubility bacteriostasis of measured, characterization microstructure films. The results showed that optimized ratio 1.5% 0.5%...

Cu-doped ZnO nanorods have been grown at 90°C for 90 min onto a quartz substrate pre-coated with seed layer using hydrothermal method. The influence of copper (Cu) precursor and concentration on the structural, morphological, optical properties was investigated. X-ray diffraction analysis revealed that are highly crystalline hexagonal wurtzite crystal structure along c-axis. lattice strain is found to be compressive all samples, where minimum -0.114% obtained when 1 at.% Cu added from...

The particle size of single-crystal Li-rich materials was accurately regulated, and its impact on the electrochemical behavior compared, which clarified cathode with optimal can improve energy density.

Graphene oxide (GO) was introduced into carbon fiber/epoxy composite using a wet process for impregnating fiber by epoxy added with GO, which resulted in an enhancement the interfacial performance and electromagnetic interference shielding effectiveness (SE) of composite. To investigate reinforcing mechanism, we compared effect between graphene reduced through interlaminar shear strength test, microdrop scanning electron microscopy, transmission microscopy. The results indicate that...

Advanced Si-based anode materials with nano-sized porous structures and constrained coating layers present attractive prospects for lithium-ion batteries. A brand-new design of double-layer-constrained micron-sized (>20 μm) Si/SiO2/C is proposed through facile synthesis processes using cheap Al–Si alloy as feedstock. The three-dimensional spherical coral-like Si structure composed primary (as a supporting framework), eutectic rods, uniformly distributed conductive element Al, which...

Water quality early warning is a key aspect in industrial recirculating aquaculture systems for high-density shrimp farming. The concentrations of ammonia nitrogen and nitrite the water significantly impact cultured animals are challenging to measure real-time, posing substantial challenge technology. This study aims collect data samples using low-cost sensors during process construct predictive values nitrite, which difficult obtain through environment, prediction techniques. employs...

Gold nanoshell-functionalized polymer multilayer tubes can be used as potent therapeutic agents for remote killing of cancer cells in a controlled manner due to the emerging pressure wave and tube fragments piercing cell wall. The explosion is based on rapid evaporation water inside caused by photothermal effects. mechanism presented theory experiment. depends absorption coefficient size gold nanoshells tubes, whereby placement particles or outside has no obvious effect explosive properties.

ABSTRACT The rapid development of the global aquaculture industry has brought about challenge environmentally friendly treatment effluent. Nitrogen removal is a key and challenging aspect process for Recently, co-cultivation microorganisms algae wastewater attracted much attention due to its low-carbon, efficient, economical nature. To raise awareness role microorganism–algae co-culture in nitrogen resource utilization effluent, this study offers detailed introduction principles...

Abstract Compared with the polycrystal (PC) Ni‐rich cathode materials, single‐crystal (SC) counterpart displayed excellent structural stability, high reversible capacity and limited voltage decay during cycling, which received great attention from academics industry. However, origin of fascinating high‐voltage stability within SC is poorly understood yet. Herein, we tracked evolution phase transitions, in destructive volume change H3 formation presented PC, are effectively suppressed when...

A moving bed biofilm reactor (MBBR) is an efficient water treatment process, widely used in recirculating aquaculture systems.

Batteries based on zinc (Zn) chemistry offer a great opportunity for large-scale applications owing to their safety, cost-effectiveness, and environmental friendliness. However, the poor Zn reversibility inhomogeneous electrodeposition have greatly impeded practical implementation, stemming from water-related passivation/corrosion. Here, we present multifunctional electrolyte comprising gamma-butyrolactone (GBL) Zn(BF4)2·xH2O resolve these intrinsic challenges. The systematic results confirm...

Abstract By simply increasing the concentration of electrolytes, both aqueous and non-aqueous batteries deliver technical superiority in various properties such as high-voltage operation, electrode stability safety performance. However, development this strategy has encountered a bottleneck due to limitation intrinsic solubility, its comprehensive performance reached limit. Here we demonstrate that conformational isomerism solvent would significantly affect solubility electrolytes....