The practical applications of transition metal sulfides as electrode materials for lithium-ion batteries (LIBs) is greatly hindered by the fast capacity fading owing to large volume expansion. To address this issue, construction sulfide and carbon nanocomposites with unique yolk–shell structures an effective strategy but also remains a great challenge. In work, we reported facile approach synthesize FeS2@carbon (FeS2@C) spheres via calcination treatment resorcinol–formaldehyde (RF)...

Organoids are 3D artificial miniature organs composed of a cluster self-renewing and self-organizing cells in vitro, which mimic the functions real organs. Nanotechnologies, including preparation nanomaterials fabrication micro/nanostructures, have been proven to promote cell proliferation, guide differentiation, regulate self-organization, showing great promise engineering organoids. In this Perspective, different types nanocomposite hydrogels for organoid culture summarized, effects...

Li1+xAlxTi2-x(PO4)3 (LATP) is a NASICON-type solid electrolyte that presents stability in aqueous media and high ion conductivity. With these advantages, it expected to be used as cathode separator coating material for lithium-ion batteries improve battery performance. However, also displays level of residual moisture introduction due its strong water absorption. Meanwhile, LATP particle size key influential factor the thereby produces an impact on In this research, we prepared three...

The poor conductivity, inert charge transmission efficiency, and irreversible Na+ trapping of Na2 Ti3 O7 result in retardant electrons/ions transportation deficient sodium-ion storage leading to sluggish reaction kinetics. To address these issues, an urchin-like Ti2 CTx /Na2 (Ti2 C/NTO) heterostructure sphere consisting C/NTO nanobelts array is developed via a facile one-step situ hydrothermal strategy. can obviously decrease diffusion barriers increase electronic conductivity improve...

Co 2− x Ni P@C hollow nanoflowers were prepared and the optimized 1.4 0.6 is used as an anode in LIBs with long cycle stability high rate capacity.

Abstract Lithium (Li) metal batteries are highly sought after for their exceptional energy density. However, practical implementation is impeded by the formation of dendrites and significant volume fluctuations in Li, which stem from uneven distribution Li‐ions uncontrolled deposition Li on current collector. Here, an amino‐functionalized reduced graphene oxide covered with polyacrylonitrile (PrGN) film electric field gradient structure prepared to deal such difficulties. This novel...

Abstract The uncontrollable lithium (Li) dendrite growth and unstable solid electrolyte interfaces (SEI) hinder the practical application of Li metal batteries (LMBs). Herein, a PAN/CNTs‐based SiO 2 ‐modified vertical‐cavity film (PCS‐VCF) with network structure is prepared by simple spin‐coating process to address these challenges. This new current collector polar lithiophilic stabilizes anodes regulating chemical environment in carbonate electrolytes. dipole interaction between CN groups...

Resistive switching devices are promising candidates to replace today's nonvolatile memory device, and find applications in neuromorphic computing. In this study, bipolar resistive (BRS) unipolar (URS) behaviors at room temperature were shown for Ag/Ti/CeO2/Pt devices. Without forming step, the device exhibited low set voltage (about 0.3 V) reset −0.3 V −0.6 BRS behavior, which is beneficial application. The I-V characteristics analyzed, it was concluded that mechanism dominated by...

Abstract As an indispensable cathode material for lithium‐ion batteries, LiMn x Fe 1− PO 4 (LMFP) has garnered significant attention among scholars due to its considerable energy density and remarkable safety characteristics. However, the further advancement of LMFP is hindered by poor conductivity limitations in terms cycle stability. Herein, 0.6 0.4 @C@Al 2 O 3 (LMFP64/CA) composite materials with core‐shell structure were prepared through simple solvothermal liquid phase coating methods....

The doping mechanism in organic-semiconductor films has been quantitatively studied via ultrahigh-sensitivity ultraviolet photoelectron spectroscopy of N,N-bis(1-naphthyl)-N,N-diphenyl-1,1-biphenyl-4,4-diamine (α-NPD) doped with hexaazatriphenylene-hexacarbonitrile [HAT(CN)6]. We observed that HOMO α-NPD shifts to the Fermi level (EF) two different rates concentration HAT(CN)6, but distributions both pristine and amorphous are excellently approximated a same Gaussian distribution without...

Metal-Organic frameworks (MOFs) are increasingly being investigated for the synthesis of carbon-supported metal-based ultrafine nanoparticles (UNPs). However, collapse carbon framework and aggregation metal particles in pyrolysis process have severely hindered their stability applications. Here, we report synchronous nucleation pseudopyrolysis MOFs to confine Fe/FeOx UNPs intact porous nanorods (IPCNs), revealed by situ transmission electron microscopy experiments ex structure analysis. The...

Bismuth (Bi) has emerged as a promising candidate for sodium-ion battery anodes because of its unique layered crystal structure, superior volumetric capacity, and high theoretical gravimetric capacity. However, the large volume expansion severe aggregation Bi during alloying/dealloying reactions are extremely detrimental to cycling stability, which seriously hinders practical application. To overcome these issues, we propose an effective synthesis composite materials, encapsulating...

Resistive random-access memory (ReRAM)-based crossbar array (RCA) is a promising platform to accelerate vector-matrix multiplication in deep neural networks (DNNs). There are, however, some practical issues, especially device variation, that hinder the versatile development of ReRAM computing systems. The variations include device-to-device variation (DDV) and cycle-to-cycle (CCV) deviate devise resistance RCA from their target state. Such deviation seriously degrades inference accuracy...

In this paper, we propose a new full-duplex (FD) scheme based on Alamouti space-time code for the two-way amplify-and-forward (AF) relay networks. Compared with conventional scheme, proposed can exploit direct link instead of neglecting it or considering as interference. Therefore has much better outage performance than existing schemes. order to further improve considered system, two hybrid half/full duplex schemes are also in paper. These eliminate platform phenomenon probability caused by...

The hydropower running and performance can be displayed analyzed by the real-time remote system.Real-time data of hydraulic turbine unit obtained through analysis operating unit.It not only guide significance for long-term operation unit, but also provide a reference improving Hydropower hydro efficiency, economic dispatch comparison before after overhaul.

Schr\"odinger bridge is a diffusion process that steers given distribution to another in prescribed time while minimizing the effort do so. It can be seen as stochastic dynamical version of optimal mass transport, and has growing applications generative models control. In this work, we propose regularized variant with quadratic state cost-to-go incentivizes sample paths stay close nominal level. Unlike conventional bridge, regularization induces state-dependent rate killing creation...