Layered oxide cathodes of sodium-ion batteries (SIBs) are considered promising candidates due to their fascinating high capacity, good cyclability, and environmental friendliness. However, the air sensitivity layered SIB causes electrode manufacturing costs performance deterioration, hampering practical application. Herein, a commercial O3-type Na(Ni1/3Fe1/3Mn1/3)O2 (NNFM) material is adopted investigate corrosive problem suppression strategy. We reveal that once comes in contact with...

Transition metal doped semiconductor nanocrystals (d-dots) possess fundamentally different emission properties upon photo- or electroexcitation, which render them as unique emitters for special applications. However, in comparison with intrinsic nanocrystals, the potential of d-dots has been barely realized, because many their mostly rely on precise control photoluminescence (PL) decay dynamics. Results this work revealed that it would be possible to obtain bright nearly single-exponential...

In this work, we report a facile technique for the synthesis of graphene/MoS₂ quantum dots hybrid nanostructures gas sensing.

The main technical challenges for the treatment of volatile organic compounds (VOCs) with plasma-assisted catalysis in industrial applications are large volume plasma generation under atmospheric pressure, byproduct control, and aerosol collection. To solve these problems, a back corona discharge (BCD) configuration has been designed to evenly generate nonthermal honeycomb catalyst. Voltage–current curves, images, emission spectra have used characterize plasma. Grade particle collection...

Transition-metal dichalcogenides (TMDs) have gained intense interest for their outstanding optoelectronic and electrochemical characteristics, utilized in versatile applications such as gas sensors photodetectors. However, TMD-based chemiresistors suffer from poor sensitivity at ppb-level detection, the experimental detection limit fails to reach 1 ppb. Herein, SnS2 QD/graphene nanoheterostructures functional flexible are fabricated NO2 light room temperature. The semiconductor type of...

Abstract Supramolecular self‐assembly has emerged as an efficient tool to construct well‐organized nanostructures for biomedical applications by small organic molecules. However, the physicochemical properties of self‐assembled nanoarchitectures are greatly influenced their morphologies, mechanical properties, and working mechanisms, making it challenging design screen ideal building blocks. Herein, using a biocompatible firefly‐sourced click reaction between cyano group...

Pt-based intermetallics are expected to be the highly active catalysts for oxygen reduction reaction (ORR) in proton-exchange membrane fuel cells but still face great challenges controllable synthesis of interatomically ordered and ultrafine intermetallic nanoparticles. Here, we propose an vacancy-mediated atomic diffusion strategy by mechanical alloying reduce energy barrier transition from interatomic disordering ordering, resist interparticulate sintering via strong M-O-C bonding. This...

A pulsed corona discharge in conductive water is studied theoretically and experimentally via pre-discharge analysis, thermodynamic dynamic processes of a plasma-containing bubble, an acoustic signature energy partitioning. The total particle density electron inside the internal temperature pressure, bubble radius wall Mach number are simulated by solving set equations including ideal gas equation, Rayleigh equation balance equation. also measured high-speed charge-coupled device camera on...

An intense luminescence flash can be induced during the collapse phase of bubbles generated by pulsed discharge in water. To gain insight into this special phenomenon, we experimentally investigated optical characteristics and temperature inside collapsing bubbles. The duration was around tens microseconds, which confirmed high-speed recording photodiode output, inception time approximately 32.5 μs before bubble collapsed to its minimum size. temperatures at energies 25 30 J/pulse calculated...

In this paper, a new multiple-needle-cylinder reactor is designed to study the Escherichia coli inactivation with an unstable pulsed arc discharge in water and investigate influence of several parameters for promoting its industrial application. The results show that rate mainly determined by energy density. About three orders reduction can be obtained initial cell count 3 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</sup> CFU/mL...

Bioluminescence imaging (BLI) is an important noninvasive optical technique that has been widely used to monitor many biological processes due its high sensitivity, resolution, and signal-to-noise ratio. However, the BLI based on firefly luciferin-luciferase system limited by expression of exogenous luciferase short half-life luciferin, which pose challenges for long-term tracking in vivo. To solve problems, here we rationally designed intelligent strategy persistent tumors combining...

The plasma sparker has been applied in oceanic high-resolution seismic exploration for decades. Normally it is towed on the water surface. This suitable shallow water, but if depth great, resolution will decrease dramatically, especially horizontal direction. paper proposes concept of a deep-towed and presents an experimental study performance terms electric parameters, bubble behavior, acoustic characteristics. results show that hydrostatic pressure at source ranging from 1 to 2000 m...

In this paper, a simple model was developed to predict the dynamics of spark-induced bubble under different ambient pressures. This work helps in developing deep-towed plasma sparker, as can bubbles subjected very high pressures (about 20 MPa) which normally are difficult obtain experimentally. Experimental results indicate that maximum radius for fixed discharge energy decreases power-law function pressure up 1.0 MPa; period also quickly with increasing pressure. For constant value ratio...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Yifan Huang, Liancheng Zhang, Jim Chen, Xinlei Zhu, Zhen Liu, Keping Yan; Experimental observation of the luminescence flash at collapse phase a bubble produced by pulsed discharge in water. Appl. Phys. Lett. 2 November 2015; 107 (18): 184104. https://doi.org/10.1063/1.4935206 Download citation file: Ris...

All types of seismic sources have a common feature in which large energy is released into water short time to produce an intense acoustic pulse. For plasma sparker, the discharge mainly determined by circuit parameters. Providing accurate prediction pulse difficult because complex process and unclear initial bubble condition. This paper presents first experimental study on influence electric width pulses, especially expansion Three comparative experiments are conducted investigate effect...

Abstract This letter focuses on the streamer-to-spark transitions generated by microsecond pulsed discharges (±20 kV of amplitude, 150 μ s pulse width) in deionized water to provide a quantitative insight into underwater breakdown process. The discharge channel during electrical is generally considered as homogenous blackbody radiator arc model. However, we report an unsymmetrical structure negative which shows great discrepancy from frequently observed uniform structure. An improved...