Electronic Modulation and Built‐in Electric Field Strategies in Heterostructures Together Induce 1T‐Rich MoS2 Conversion for Advanced Sodium Storage DOI Creative Commons
Hui Peng,

Wenxing Miao,

Jingtian Zeng

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

1T-MoS2 is considered an attractive energy storage material due to its large layer spacing and excellent electrical conductivity. Unfortunately, difficult synthesize directly the substability, which limits development application. Electron-filling engineering of Mo 4d orbitals core idea induce efficient conversion 2H 1T phase. Based on this theory, a homogeneous CuS@MoS2 heterogeneous nanosheet successfully constructed based electron-rich CuS as electron donor. Both density functional theory (DFT) X-ray absorption fine structure analysis (XAFS) illustrate that part electrons from Cu at interface are transferred Mo, triggers reorganization formation strong built-in electric field interface, induces irreversible phase transition in MoS2. structural features, nanosheets have high first discharge capacity 725 mAh g-1 0.1 A g-1, rate performance (466.73 10 g-1), long cycle stability (506.03 after 3200 cycles 5 g-1). This work provides new perspectives for high-performance sodium anode materials 1T-rich

Language: Английский

Heterostructure Interface Construction of Cobalt/Molybdenum Selenides toward Ultra‐Stable Sodium‐Ion Half/Full Batteries DOI
Junhui Li, Yanyan He, Yuxin Dai

et al.

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

Published: June 21, 2024

Abstract Transition metal selenides (TMSes) are considered promising candidates for the anodes of sodium‐ion batteries (SIBs) due to their substantial theoretical capacity. However, TMSes still face with inferior cycling lifespan caused by sluggish Na + diffusion kinetics and vigorous volume variations during dis/charge processes. Engineering heterostructure is an attractive solution rapid transfer, introducing carbonaceous materials also facilitates enhanced conductivity structural stability. Herein, CoSe/MoSe 2 combined homogeneous carbon composites rational designed. The kinetic analysis calculations verified that heterointerface engineering induced build‐in electric field effect can amplifies kinetics, while contributes electrical Expectedly, ‐C exhibits high capacity extremely ultra‐long (320.9 mAh g −1 at 2.0 A over 10,000 cycles average decay only 0.01781 per cycle). Furthermore, in situ X‐ray diffraction (XRD), ex photoelectorn (XPS), high‐resolution electron microscopy (HRTEM) exploited explore storage mechanism. In addition, 3 V (PO 4 ) @rGO//CoSe/MoSe (NVP@rGO//CoSe/MoSe ‐C) pouch‐type full‐cells successfully assembled delivered satisfactory performance. This research presents a viable strategy targeted aimed enhancing efficiency SIBs.

Language: Английский

Citations

27

Heterojunction Vacancies‐Promoted High Sodium Storage Capacity and Fast Reaction Kinetics of the Anodes for Ultra‐High Performance Sodium‐Ion Batteries DOI
Hui Zheng,

Dakai Ma,

Maojun Pei

et al.

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

Published: Sept. 6, 2024

Abstract Transition metal sulfides as anode materials for sodium‐ion batteries (SIBs) have the advantage of high capacity. However, their cycle‐life and rate performance at ultra‐high current density is still a thorny issue that limit applicability these materials. In this paper, carbon‐embedded heterojunction with sulfur‐vacancies regulated by ultrafine bimetallic (vacancy‐CoS 2 /FeS @C) robust interfacial C‐S‐Co/Fe chemical bonds successfully synthesized explored an material battery. By changing ratio two cations, concentration anion sulfur vacancies can be in‐situ adjusted without additional post‐treatment. The as‐prepared vacancy‐CoS @C offers ultrahigh (285.1 mAh g −1 200 A ), excellent long‐cycle stability (389.2 40 after 10000 cycles), outperforming all reported transition sulfides‐based SIBs. Both ex‐situ characterizations provide strong evidence evolution mechanism phases stable solid‐electrolyte interface (SEI) on surface. functional theory calculations show constructing reasonable significantly increase electronic conductivity. Notably, assembled @C//Na 3 V (PO 4 ) /C full‐cell shows capacity 226.2 400 cycles 2.0 , confirming material's practicability.

Language: Английский

Citations

27

Ordered Vacancies as Sodium Ion Micropumps in Cu‐Deficient Copper Indium Diselenide to Enhance Sodium Storage DOI

Fan Liu,

Jingui Zong,

Yazhan Liang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: March 28, 2024

Unordered vacancies engineered in host anode materials cannot well maintain the uniform Na

Language: Английский

Citations

25

Flexible electrochemical energy storage devices and related applications: recent progress and challenges DOI Creative Commons

Bo‐Hao Xiao,

Kang Xiao, Jianxi Li

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(29), P. 11229 - 11266

Published: Jan. 1, 2024

This paper reviews advancements in flexible carbon-based and polymer gel materials for various types of energy storage systems, providing guidance future development next-generation wearable electronics.

Language: Английский

Citations

22

Recent advances of cobalt-based bimetallic selenides anodes for high-performance rechargeable alkali metal–ion batteries DOI
Junhui Li, Yanyan He, Yixuan Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159623 - 159623

Published: Jan. 1, 2025

Language: Английский

Citations

3

Anion Doping as a “Trigger” to Modulate Defect‐Tailored Dielectric Coupling for Ultrathin Microwave Absorber DOI

Ruifeng Pei,

Yikun Chen,

Huichao Rao

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Abstract Anion doping engineering is recognized as a prospective strategy to adjust the electronic configuration and transport capacity of carbon‐based magnetoelectric hybrids optimize defects for modulation electromagnetic (EM) properties. This study effectively accomplishes an overwhelming enhancement in dielectric coupling between conduction polarization CuCo bimetallic/carbon system by employing situ (N, O)/ex (S, Se) defect strategies. The well‐designed lattice distortions are facilitated large atomic radii (Se) intercalated carbon skeleton bimetallic CuCo, which activate reinforcement dipole high‐frequency region. Interestingly, appropriate number vacancies acts “electron traps” accelerate local charge redistribution, endowing with extremely strong interactions interface‐induced polarization. It remarkable that ultra‐thin feature (1.8 mm) able achieve extraordinary microwave attenuation (‒56.1 dB). Additionally, specific upgrading anionic Se beneficially hinders development phonon transmission, conferring Cu 2 Se/CoSe /NC‐Se aerogel outstanding infrared stealth capabilities along inheriting advantages traditional (lightness, compressive/structural stability, hydrophobicity/anti‐corrosive properties). research offers distinctive perspectives on advanced design multifunctional absorbers complex environments.

Language: Английский

Citations

14

Selenium‐Doped Nanoheterojunctions for Highly Efficient Cancer Radiosensitization DOI Creative Commons

Rui Qiao,

Zhongwen Yuan,

Meijin Yang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(29)

Published: June 3, 2024

Abstract Exploring efficient and low‐toxicity radiosensitizers to break through the bottleneck of radiation tolerance, immunosuppression poor prognosis remains one critical developmental challenges in radiotherapy. Nanoheterojunctions, due their unique physicochemical properties, have demonstrated excellent radiosensitization effects energy deposition lifting tumor radiotherapy inhibition. Herein, they doped selenium (Se) into prussian blue (PB) construct a nano‐heterojunction (Se@PB), which could promote increase Fe 2+ /Fe 3+ ratio conversion Se high valence state with introduction. The ‐Se‐Fe electron transfer chain accelerates rate on surface nanoparticles, turn endows it X‐ray transport capability, enhances physical sensitivity. Furthermore, Se@PB induces glutathione (GSH) depletion accumulation pro‐Fenton reaction, thereby disturbs redox balance cells biochemical sensitivity As an radiosensitizer, effectively induced mitochondrial dysfunction DNA damage, promotes cell apoptosis synergistic cervical cancer This study elucidates mechanism Se‐doped nanoheterojunction from perspective biochemistry provides low‐toxic strategy

Language: Английский

Citations

13

Empowering Energy Storage Technology: Recent Breakthroughs and Advancement in Sodium-Ion Batteries DOI
Kundan Kumar, Rajen Kundu

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(9), P. 3523 - 3539

Published: April 15, 2024

Energy storage devices have become indispensable for smart and clean energy systems. During the past three decades, lithium-ion battery technologies grown tremendously been exploited best system in portable electronics as well electric vehicles. However, extensive use limited abundance of lithium made researchers explore sodium-ion batteries (SIBs) an alternative to lithium. Throughout few years, rapid progression has represented a noteworthy advancement field technologies. This review discusses recent advancements SIBs, focusing on methodologies improve performance cathode anode materials, evolution electrolytes toward solvent-free electrolytes, fast-charging low-temperature SIBs. work also highlights some that empowered electrochemical five years. It concludes emerging routes enhance overall batteries, leading comparable with Li-ion future research.

Language: Английский

Citations

12

Local charge regulation via selenium vacancies engineering in dielectric cobalt diselenide with enhanced microwave absorption DOI

Hanxiao Jia,

Yuping Duan,

Naibo Wu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153783 - 153783

Published: July 10, 2024

Language: Английский

Citations

11

Engineering multiple heterogeneous Co/CoSe/MoSe2 embedded in carbon nanofibers with Co/Mo–Se–C bonding towards high performance sodium ion capacitors DOI
Lin Gao,

Yanan Ma,

Minglei Cao

et al.

Vacuum, Journal Year: 2024, Volume and Issue: 228, P. 113519 - 113519

Published: July 29, 2024

Language: Английский

Citations

10