Band structure engineering in 2D BA2PbI4/InSe perovskite heterostructures and superlattices

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(3)

Published: Jan. 20, 2025

Periodic stacking of two van der Waals materials enables the realization superlattice structures with artificial design band structure. Two-dimensional perovskites offer structural flexibility for engineering structure that can result in structures. Here, InSe/BA2PbI4 perovskite heterostructure and are explored by first principles calculation. Both show a similar direct bandgap As concentration VBA defects increases, superlattices generally increase different manners due to interfacial interaction. The introduction VI leads formation type-I alignment, contrasting type-II alignment resulting from defects. These findings valuable insights into defect-driven modulation electronic properties semiconductor heterostructures, providing opportunities tailor them various optoelectronic applications.

Language: Английский

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Two-Dimensional Silicon-containing Organic Framework Facilitates Lithium-Ion Migration in Solid-State Polymer Electrolytes

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A novel two-dimensional silicon-containing organic framework (2D SiOF) enhances the Li-ion migration of PEO-based solid-state polymer electrolytes (SPE). Li//LiFePO 4 full cell with SiOF-modified PEO SPE exhibits superior cycling performance.

Language: Английский

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A High-Modulus Dual-Cross-Linked Shell Promoting Phosphorus–Carbon Composites for Stable and High-Rate Lithium Ion Storage

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Phosphorus is considered an ideal anode material for lithium ion storage by virtue of its high theoretical capacity and moderate lithiation potential. However, issues such as large volume expansion phosphorus leading to electrical loss contact instability the solid electrolyte interface hinder practical performance. Improvement strategies that can effectively suppress provide stable contacts are urgently needed. Herein, introduction a carbon nanotube cross-linked microstructure into polyimide coating layer, high-modulus layer constructed fast conductive network. The prepared dual-cross-linked phosphorus–carbon composites exhibit excellent cycling stability high-rate After 500 cycles at current density 1 A g–1, it still specific 1467.68 mAh with retention rate 87.28%. And even 10 1450.72 g–1.

Language: Английский

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sp-C induced regulation of the carboxyl ligand field strength to tailor Fe d-orbital for enhanced oxygen reduction

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161001 - 161001

Published: March 1, 2025

Language: Английский

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MoSe₂/Bi₂Se₃ Heterostructure Immobilized in N‐Doped Carbon Nanosheets Assembled Flower‐Like Microspheres for High‐Rate Sodium Storage

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract A key challenge for sodium‐ion batteries (SIBs) lies in identifying suitable host materials capable of accommodating large Na + ions while addressing sluggish chemical kinetics. The unique interfacial effects heterogeneous structures have emerged as a critical factor accelerating charge transfer and enhancing reaction Herein, MoSe 2 /Bi Se 3 composites integrated with N‐doped carbon nanosheets are synthesized, which spontaneously self‐assemble into flower‐like microspheres (MoSe @N‐C). Electrochemical measurements density functional theory (DFT) calculations underscore the significant improvement kinetics enabled by structural advantages composite. Remarkably, nanosheet morphology provides more storage sites, uniformly distributed heterostructure can optimize carrier concentration alter electric field distribution, thereby facilitating enabling additional sodium ion storage. When employed an anode material SIBs, @N‐C exhibits exceptional performance, delivering reversible capacity 521.4 mAh g −1 at 1 800 cycles 407.9 10 over 1400 cycles. Notably, be fully restored to its initial level after cycling high current densities. This study, combining experimental theoretical insights, novel perspective on interface engineering advance practical application SIBs.

Language: Английский

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Graphdiyne: The Emerging Energy Conversion Material

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Global research efforts aimed at substituting fossil fuels with clean energy sources have been intensified to tackle the crisis and associated environmental challenges. Nevertheless, a thorough transition necessitates discovery of new materials that continuously revolutionize efficiency conversion. Graphdiyne (GDY), promising carbon allotrope, has garnered substantial interest across various disciplines. Notably, as an emerging conversion material, GDY exhibits unique structure properties distinguish it from conventional materials, including highly conjugated large π network, rich chemical bonds, non‐uniform charge distribution, well 2D electronic fast transfer channels 3D ionic channels. This review offers overview recent advancements in field conversion, hydrogen artificial photosynthesis, solar cells, fast‐charging batteries, devices based on reversible alkyne‐to‐alkene GDY.

Language: Английский

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Recent advances in optimizing siRNA delivery to hepatocellular carcinoma cells

Expert Opinion on Drug Delivery, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Hepatocellularcarcinoma (HCC), the primary form of liver cancer, is second leading causeof cancer-related deaths worldwide. Current therapies have limited effectiveness,particularly in advanced stages disease, highlighting need forinnovative treatment options. Small-interfering RNA(siRNA) molecules show great promise as a therapeutic solution since they caninhibit expression genes promoting HCC growth. Their cost-effective synthesis has further encouraged their potentialuse novel drugs. However, siRNAs are vulnerable to degradation biologicalenvironments, necessitating protective delivery systems. Additionally, targeteddelivery critical for optimal efficacy and minimal undesired sideeffects. This review addresses challenges associated with siRNA toHCC, discussing focusing on systems based lipid polymeric nanoparticlesin publications from past five years. Futurenanoparticles will effectively cross vessel wall, migrate throughthe extracellular matrix finally cell membrane. may beachieved by optimizing nanoparticle size, equipment nanoparticles withHCC targeting moieties loading againstHCC-specific oncogenes.

Language: Английский

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Modulating the electronic structure of graphdiyne-based nanomaterials for engineering nano-bio interfaces in biomedical applications

Advanced Drug Delivery Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 115570 - 115570

Published: March 1, 2025

Language: Английский

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Synthesis and Sodium-Ion Storage of Triazole-Substituted Graphdiyne

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Sodium-ion batteries (SIBs) have developed rapidly in recent years, confronting low capacity and poor cycling stability issues for anode material. Herein, triazole-substituted graphdiyne (TzlGDY) was designed to tune the sodium-ion insertion sequence, an effective diyne-radical Na-storage mechanism discovered. The distinctive diyne-ditriazole architecture actualizes a preferential Na+-N complexation, then π-bond homolysis of diyne is induced by Na+ generate two radicals at end carbons diyne, thereby capture additional Na+-radical coupling. This complexation followed coupling more effectively enhances compared with reported cation-π mechanism. Furthermore, other ditriazole-N atoms chelate Na+. triazole-filled nanopores full-carbon backbone TzlGDY stabilize enhance Na+-transport kinetics. As result, TzlGDY's presented almost no decay over 12,000 cycles 5 A g-1 final 251.7 mAh g-1. Moreover, TzlGDY||NVP full cell delivered high specific 114 0.2C retention 81.8% average CE 99.6% after 150 cycles. Our results demonstrate new concept energy storage open up route efficiently regulating materials SIBs.

Language: Английский

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Recent Progress in Computational Materials Science Boosting Development of Rechargeable Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Abstract Rechargeable batteries have been regarded as a truly transformative technology, providing energy storage for portable electronics, power tools, and even electric vehicles. Unfortunately, the practical applications of new battery systems are postponed by some inevitable technical bottlenecks. Sometimes know‐how gained from current state‐of‐the‐art lithium‐based is untransferable. Therefore, with continuous development chemistry, materials physics, computational science has gradually become crucial in supporting field rechargeable technically. In this review, brief overviews methods first presented research materials. The study then summarizes recent advances techniques assisting experimental analyses, elucidating reaction mechanisms, exploring Finally, challenges perspectives future prospected. This review anticipated to stimulate design inspiration novel structures assistance theoretical simulations toward advanced systems.

Language: Английский

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