In the early-stage diagnosis of lung cancer,the low-concentration(<5 ppm)volatile organic compounds(VOCs)are extensively identified to be the biomarkers for breath ***,the urchin-like sodium(Na)-doped zinc oxide(Zn...
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In the early-stage diagnosis of lung cancer,the low-concentration(<5 ppm)volatile organic compounds(VOCs)are extensively identified to be the biomarkers for breath ***,the urchin-like sodium(Na)-doped zinc oxide(ZnO)nanoneedles were synthesized through a hydrothermal strategy with the addition of different contents of citric *** Na-doped ZnO gas sensor with a 3:1 molar ratio of Na^(+)and citric acid showed outstanding sensing properties with an optimal selectivity to various VOCs(formaldehyde(HCOH),isopropanol,acetone,and ammonia)based on working temperature ***,significantly enhanced sensitivity(21.3@5 ppm)compared with pristine ZnO(~7-fold),low limit of detection(LOD)(298 ppb),robust humidity resistance,and long-term stability of formaldehyde sensing performances were obtained,which can be attributed to the formation of a higher concentration of oxygen vacancies(20.98%)and the active electron ***,the improved sensing mechanism was demonstrated by the exquisite band structure and introduction of the additional acceptor level,which resulted in the narrowed bandgap of ZnO.
A network of CNTs embedded on a dielectric substrate is used to transmit two laser beams with frequencies ω1 and ω2 and wave vectors k1 and k2 respectively. These laser pulses cause a localized plasma to develop whe...
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In our previous papers,the classical fractional Fourier transform theory was incorporated into the quantum theoretical system using the theoretical method of quantum optics,and the calculation produced quantum mechani...
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In our previous papers,the classical fractional Fourier transform theory was incorporated into the quantum theoretical system using the theoretical method of quantum optics,and the calculation produced quantum mechanical operators corresponding to the generation of fractional Fourier *** core function of the coordinate-momentum exchange operators in the addition law of fractional Fourier transform was analyzed *** this paper,the bivariate operator Hermite polynomial theory and the technique of integration within an ordered product of operators(IWOP)are used to establish the entanglement fractional Fourier transform theory to the extent of quantum.A new function generating formula and an operator for generating quantum entangled fractional Fourier transform are obtained using the fractional Fourier transform relationship in a pair of conjugated entangled state representations.
Taking the increasing issue of electromagnetic waves(EMW)pollution and the necessity for applications in extreme environments,there is a pressing requirement to create multifunctional microwave absorption materials(MA...
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Taking the increasing issue of electromagnetic waves(EMW)pollution and the necessity for applications in extreme environments,there is a pressing requirement to create multifunctional microwave absorption materials(MAMs)to meet the current *** this work,we achieved the successful combination of MXene sheets and metal organic framework(MOFs)derived CoNi@C magnetic alloys onto the three dimensional(3D)melamine foam(MF)skeleton using vacuum impregnation and electrostatic self-assembly *** obtained MF@MXene/CoNi@C composite foams achieved outstanding MA performance,with an optimal reflection loss(RL)value of–24.1 dB and a maximum effective absorption bandwidth(EAB)of 6.88 GHz at a thickness of 1.68 mm,effectively covering the whole Ku *** superior MA performance is ascribed to the composite foams’multi-component architecture,distinctive 3D porous structure,and the synergistic impact of multiple loss ***,the MF@MXene/CoNi@C composite foams demonstrate exceptional photothermal conversion,thermal insulation,and infrared stealth capabilities,effectively coping with the demands of applications in extreme *** work serves as a valuable resource and source of inspiration for the development of lightweight broadband,multifunctional efficient MAMs.
This study presents a novel Li metal host material with a unique hollow nano-spherical structure that incorporates Ag nano-seeds into a graphitic carbon nitride(g-C_(3)N_(4))shell layer,referred to as g-C_(3)N_(4)@Ag ...
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This study presents a novel Li metal host material with a unique hollow nano-spherical structure that incorporates Ag nano-seeds into a graphitic carbon nitride(g-C_(3)N_(4))shell layer,referred to as g-C_(3)N_(4)@Ag hollow *** g-C_(3)N_(4)@Ag spheres provide a managed internal site for Li metal encapsulation and promote stable Li *** g-C_(3)N_(4) spheres are uniformly coated using polydopamine,which has an adhesive nature,to enhance lithium plating/stripping *** strategic presence of Ag nano-seeds eliminates the nucleation barrier,properly directing Li growth within the hollow *** design facilitates highly reversible and consistent lithium deposition,offering a promising direction for the production of high-performance lithium metal *** well-designed g-C_(3)N_(4)@Ag hollow spheres ensure stable Li plating/stripping kinetics over more than 500 cycles with a high coulombic efficiency of over 97%.Furthermore,a full cell made using LiNi_(0.90)Co_(0.07)Mn_(0.03)O_(2) and Li-g-C_(3)N_(4)@Ag host electrodes demonstrated highly competitive performance over 200 cycles,providing a guide for the implementation of this technology in advanced lithium metal batteries.
Solid-state sodium batteries(SSSBs)are poised to replace lithium-ion batteries as viable alternatives for energy storage systems owing to their high safety and reliability,abundance of raw material,and low ***,as the ...
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Solid-state sodium batteries(SSSBs)are poised to replace lithium-ion batteries as viable alternatives for energy storage systems owing to their high safety and reliability,abundance of raw material,and low ***,as the core constituent of SSSBs,solid-state electrolytes(SSEs)with low ionic conductivities at room temperature(RT)and unstable interfaces with electrodes hinder the development of ***,composite SSEs(CSSEs),which inherit the desirable properties of two phases,high RT ionic conductivity,and high interfacial stability,have emerged as viable alternatives;however,their governing mechanism remains *** this review,we summarize the recent research progress of CSSEs,classified into inorganic-inorganic,polymer-polymer,and inorganic-polymer types,and discuss their structure-property relationship in ***,the CSSE-electrode interface issues and effective strategies to promote intimate and stable interfaces are ***,the trends in the design of CSSEs and CSSE-electrode interfaces are presented,along with the future development prospects of high-performance SSSBs.
Pluronic F-127 hydrogel-based alumina inks and alumina inks with Pluronic F-127 and polyvinyl alcohol (PVA) as additives were prepared, and their rheological properties were studied. The viscosity of the alumina inks ...
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Methylcellulose-based alumina-titania composite (97:3 wt.%) inks were prepared by mixing 1 wt.% and 3 wt.% methylcellulose solution with 35 wt.%, 50 wt.%, and 65 wt.% of solid loading to obtain alumina-titania composi...
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Purpose: The purpose of this study was to examine the influence of adding a small amount of Ti to a Cu-based alloy, specifically the commercial Hyper Titanium Copper alloy (C1990 HP), which contains Cu-3.28 wt.% Ti, o...
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