RARE METALS
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2024
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IF 9.6
Wang Wei,Chen Jun-Yu,Ouyang Jie,Yin Hong,Li Ao-Jie,Chen Liang,Huang Jun-Lin,Zhu Yu-Can,Li Gang-Yong,Hou Zhao-Hui
Two-dimensional MoSe 2 is a promising candidate for lithium-ion battery anodes. However, its conductivity and lithium storage volumetric effect still need to be optimized. In this work, W-doped MoSe 2 /rGO paper-like microspheres are successfully prepared through ultrasonic spray pyrolysis, achieving optimization at both the microstructure and mesostructure to enhance the lithium storage performance of the material. Firstly, by utilizing the similar two-dimensional structure between MoSe 2 and rGO, self-assembly is achieved through spray pyrolysis, resulting in a well-defined van der Waals heterostructure at the interface on the microscale, enhancing the electron and ion transfer capability of the composite. Secondly, the mesoscale paper-like microsphere morphology provides additional volume expansion buffering space. Moreover, W-doping not only increases the interlayer spacing of MoSe 2 (0.73 nm), thereby reducing the diffusion resistance of Li + , but also allow for the modulation of the energy band structure of the material. Density functional theory (DFT) calculations confirm that W-doped MoSe 2 /rGO exhibits the narrowest bandgap (0.892 eV). Therefore, the composite demonstrates excellent lithium storage performance, maintaining a specific capacity of 732.9 mAh·g −1 after 300 cycles at a current density of 1 A·g −1 . Graphical abstract
研究领域:
材料科学
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能源存储
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhixin Wan,Fengzhi Li,Feng Jiang,Chao Wang,Junzhe Li,Hanyue Zhao,Yangzhou Ma,Jie Xu,Chao Yang
Metal selenides are promising anode materials for sodium-ion batteries due to their high theoretical capacity, but their practical application is hindered by sluggish reaction kinetics and structural instability. Herein, a MoSe 2 /Sb 2 Se 3 heterostructure embedded in a carbon matrix with abundant heterojunctions and selenium vacancies is synthesized via solid-state selenization using polyvinylpyrrolidone as both carbon source and nucleation inducer. The heterojunctions induce lattice distortion and generate internal electric fields to accelerate charge transfer, while selenium vacancies enhance Na + adsorption and create additional active sites. Density functional theory calculations reveal a reduced bandgap (1.25 eV) and optimized electronic structure, synergistically boosting conductivity and ion diffusion kinetics. Benefiting from these features, the MoSe 2 /Sb 2 Se 3 /C anode delivers a reversible capacity of 405.7 mAh g −1 at 0.2 A g −1 after 100 cycles and maintains 261.7 mAh g −1 at 5 A g −1 over 3000 cycles, outperforming most reported sodium-ion anodes. In situ XRD and TEM analyses confirm reversible phase evolution (MoSe 2 /Sb 2 Se 3 ↔ Na 3 Sb/Mo) and robust structural stability. This study demonstrates a synergistic defect-interface engineering strategy to advance heterostructured materials for durable energy storage.
研究领域:
材料科学
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储能
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纳米技术
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电化学
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电池技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Jinhang Yang,Jiangli Sun,Shuo Chen,Danquan Lan,Zhihong Li,Zuji Li,Jingwen Wei,Zebin Yu,Hongxiang Zhu,Shuangfei Wang,Yanping Hou
Development of efficient and stable photocatalysts is of essential for photocatalytic degradation of refractory organics in wastewaters. Herein, the novel S-scheme MoSe 2 /AgBr (MS/AB) heterojunctions were synthesized for antibiotics degradation. Various characterization results showed that the S-scheme MS/AB photocatalysts exhibited efficient carriers’ separation and strong redox potential. Tetracycline (TC) (20 mg/L) degradation efficiency of 81.4% was achieved using the 5MS/AB within 90 min at pH of 9, superior to those of the counterparts. Photogenerated carriers' transfer and photocatalytic reaction mechanism of the S-scheme MoSe 2 /AgBr heterojunction were deduced by DFT calculation, in-situ XPS and work function calculation. Moreover, possible degradation pathways of TC were proposed based on identified intermediates, and most of the intermediates showed lower toxicity than that of TC. The 5MS/AB photocatalyst also showed great stability and excellent antibacterial effect. This study advances the design of efficient photocatalysts and enriches related mechanisms.
研究领域:
环境科学
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材料科学
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生物学
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DOI
高影响因子
ACS Applied Bio Materials
·
2022
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IF 0
Tianran Lin,Gaoyan Jiang,Danxuan Lin,Yunping Lai,Li Hou,Shulin Zhao
Bacitracin (an antimicrobial peptide, AMP)-modified dextran-MoSe2 nanosheets (AMP/dex-MoSe2 NSs) were constructed and applied for low-temperature and synergetic antibacterial applications. The near-infrared (NIR) photothermal and peroxidase-like activities of dex-MoSe2 were combined with the bacterial membrane-binding ability of AMP through electrostatic adsorption, and a multimode antibacterial method was realized. H2O2 was converted into a hydroxyl radical (·OH) by AMP/dex-MoSe2, which exhibits a higher antibacterial activity and can avoid the toxicity of a high concentration of H2O2. Importantly, the production of ·OH and the antibacterial efficiency of AMP/dex-MoSe2 were accelerated by low-temperature heat sterilization with NIR irradiation. Owing to the AMP-guided binding and destruction effect to the bacterial membrane, AMP/dex-MoSe2 shows a better antibacterial effect on Gram-negative Escherichia coli under NIR irradiation as compared to catalytic treatment or NIR photothermal sterilization alone. Furthermore, the cytotoxicity and hemolysis of AMP/dex-MoSe2 were weak and in a relatively safe range. This multimode antibacterial strategy based on the AMP/dex-MoSe2 nanozyme will pave a way for the development of more safe and efficient antibacterial applications.
研究领域:
材料科学
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纳米技术
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生物医学工程
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微生物学
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DOI
PubMed
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 12
·2212627
·
IF 19
Hui Deng,Yingshun Cheng,Zekun Chen,Xiao Lin,Jionghua Wu,Qiao Zheng,Caixia Zhang,Shuying Cheng
Antimony sulfide (Sb 2 S 3 ) with a 1D molecular structure has strong bending characteristics, showing great application potential in flexible devices. Herein, the flexible substrate-structured Sb 2 S 3 solar cells is developed and improve device performances by the back interface selenization. The high-quality Sb 2 S 3 film with an optimal thickness of 1.8 µm, ensuring efficient spectra utilization, is deposited on flexible Mo foils by the rapid thermal evaporation technique. To solve the issues of back interfacial recombination and charge transport, the 20 nm MoSe 2 layer between Sb 2 S 3 film and Mo foil is fabricated by substrate selenization in the tube furnace. Further investigations indicate that the MoSe 2 layer improves the interfacial energy band alignments and induces the [hk1] orientation of Sb 2 S 3 film, thereby passivating defects and enhancing the carrier transport capacity. The flexible solar cell in the structure of Mo foil/MoSe 2 /Sb 2 S 3 /CdS/ITO/Ag, exhibiting good flexibility to stand thousands of bending, achieves an efficiency of 3.75%, which is the highest for Sb 2 S 3 devices in substrate configuration. The presented flexible structure and back interfacial selenization study will provide new prospects for inorganic Sb 2 S 3 thin film solar cells.
研究领域:
光伏技术
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材料科学
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薄膜技术
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柔性电子学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xinwei Wang,Kangning Xu,Jiayi Guo,Zeyang Li,Siyang Liu,Lianshan Sun,Jianxun Zhao,Heng Liu,Wanqiang Liu,Fang Wang
Lithium-sulfur (Li-S) battery with a high theoretical energy density (2600 Wh·kg −1 ) is considered as a promising energy storage system. However, the shuttle effect and the sluggish redox kinetics of lithium polysulfides (LiPSs) lead to low sulfur utilization. A multifunctional layer modified on separator, as a collaborator of capturer-catalyst-conductor, is be regarded as an effective strategy to solve these problems. Herein, the Co@NCNT-MoSe 2 nanocomposite as a modified layer is synthesized with a mesoporous structure by the hydrothermal reaction, in which a large number of transparent MoSe 2 nanosheets grow outside NCNT embedded with Co nanoparticles, forming a flower-like outer walls of tube. The modified layer displays the significant features of capturing and catalytic conversion toward LiPSs, attributing to strong adsorption abilities, abundant catalytic active sites, and efficient transferring pathway of electron/Li + . Benefitting from these alluring properties, the results demonstrate that the modified separator offers a high discharge capacity of 983.2 mAh·g −1 at 0.2C after 200 cycles. Even at 2C, after long-term 1000 cycles, it still shows a superb capacity of 725 mAh·g −1 accompanied by a low capacity fading of 0.042 % per cycle. More notably, at 0.2C, the modified separator can realize an ideal areal capacity of 5.24 mAh·cm −2 under high S load (5 mg·cm −2 ) and poor electrolyte (7.5 μL·mg −1 ). Therefore, this work will provide a new insight on the development of multifunctional separators to achieve a long-life battery with high sulfur utilization by restraining shuttle effect and accelerate redox kinetics of LiPSs.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Jian Feng,Shao-hua Luo,Peng-wei Li,Yi-cheng Lin,Lin Zhang,Qing Wang,Ya-hui Zhang
Hybrid hierarchical nanostructures have a significant impact on engineering novel anode materials for boosting the performance of sodium-ion batteries (SIBs). Here, a hierarchical porous structure constituted by CoSe nanocrystals embedded in nitrogen-doped carbon polyhedron with the embellishment of 2H-MoSe 2 nanosheets (CoSe@NC/MoSe 2 ) is fabricated by a metal-organic frameworks (MOFs)-engaged strategy and subsequent selenization reaction. The presence of N-doped carbon matrix and bimetallic selenides significantly enhance electronic and ionic diffusion kinetics. In addition, the porous structure provides short Na + diffusion distance and guarantees outstanding structural stability upon cycling. Due to these distinctive features, the CoSe@NC/MoSe 2 composite displays superior cyclability of 305.9 mAh g −1 up to 1500 loops at 5.0 A g −1 and exceptional rate property of 286.1 mAh g −1 at 10.0 A g −1 for sodium storage. When matched with Na 3 V 2 (PO 4 ) 3 @C cathode, a SIB full cell can maintain a high invertible capacity of 78.9 mAh g −1 total over 100 loops at 0.5 A g −1 . Moreover, the multistep conversion reactions mechanism is further identified by kinetics analysis, and ex situ and in situ characterization.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 26
·12701-12707
·
IF 9.931
Bo Wang,Zegao Wang,Xinqiang Wang,Binjie Zheng,Wanli Zhang,Yuanfu Chen
For the first time, porous microspheres of bimetallic CoSe2–MoSe2 hybrids with reduced graphene oxide and amorphous carbon (CS-MS/rGO-C) are synthesized through a facile, low-cost and scalable spray drying approach and a subsequent selenization process. The CS-MS/rGO-C electrocatalyst delivers excellent performance for the hydrogen evolution reaction (HER) in both acidic and alkaline media: in acidic solution, CS-MS/rGO-C has a very low onset potential of −142 mV vs. RHE and a low Tafel slope of 51.3 mV dec−1, and the overpotential at −10 mA cm−2 is as low as −195 mV vs. RHE; in alkaline media, the onset potential of CS-MS/rGO-C is −125 mV vs. RHE, and the Tafel slope is 83.2 mV dec−1, and the overpotential at −10 mA cm−2 is −215 mV vs. RHE. Moreover, it has outstanding long-term stability in both media even after 1000 cycles. The outstanding HER performance of CS-MS/rGO-C can be attributed to its bi-metallic composition, porous rGO-C microsphere structure, and conductive rGO-C skeleton, which can not only provide abundant active sites, but also guarantee high conductivity for CS-MS, thus facilitating the charge transfer. This work provides new insights into scalable synthesis of low-cost electrocatalysts with high efficiency and long-term stability, which can be extended to large-scale production of other advanced electrocatalysts to replace precious Pt-based catalysts for hydrogen evolution.
研究领域:
材料科学
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电化学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2017
·Vol. 27
·期 23
·1700522
·
IF 12.124
Feier Niu,Jing Yang,Nana Wang,Dapeng Zhang,Weiliu Fan,Jian Yang,Yitai Qian
MoSe 2 grown on N,P-co-doped carbon nanosheets is synthesized by a solvothermal reaction followed with a high-temperature calcination. This composite has an interlayer spacing of MoSe 2 expanded to facilitate sodium-ion diffusion, MoSe 2 immobilized on carbon nanosheets to improve charge-transfer kinetics, and N and P incorporated into carbon to enhance its interaction with active species upon cycling. These features greatly improve the electrochemical performance of this composite, as compared to all the controls. It presents a specific capacity of 378 mAh g −1 after 1000 cycles at 0.5 A g −1 , corresponding to 87% of the capacity at the second cycle. Ex situ Raman spectra and high-resolution transmission electron microscopy images confirm that it is element Se, rather than MoSe 2 , formed after the charging process. The interaction of the active species with modified carbon is simulated using density functional theory to explain this excellent stability. The superior rate capability, where the capacity at 15 A g −1 equals ≈55% of that at 0.5 A g −1 , could be associated with the significant contribution of pseudocapacitance. By pairing with homemade Na 3 V 2 (PO 4 ) 3 /C, this composite also exhibits excellent performances in full cells.
研究领域:
材料科学
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储能
·
电化学
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纳米材料
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电池技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Minghao Bao,Junhong Chen,Bozhong Pi,Qizhen Zhang,Zhongbo Han,Hongbiao Huo,Chunpei Yu,Wenchao Zhang
A green electrocatalytic system for co-production of SATz energetic material and H 2 . • Clean electrons replace hazardous chemical oxidants for SATz synthesis with SATz yield of 75.2%. • CoSe 2 @MoSe 2 @Pt/NF achieves 30 mV@10 mA·cm −2 and 192 mV@10 mA·cm −2 overpotential for HER. • Coupling system achieves low cell voltage of 1.44 V at 10 mA·cm −2 . Replacing the kinetically sluggish oxygen evolution reaction (OER) with thermodynamically more favorable electrochemical oxidation reactions represents an effective strategy to enhance energy efficiency and economic viability in water electrolysis. Herein, we designed a CoSe 2 @MoSe 2 @Pt/NF heterostructured catalytic electrode and construct an integrated electrocatalytic coupling system that enables the co-production of azo-bridged nitrogen-rich energetic material (sodium 5,5′-azotetrazolate, SATz) at the anode and clean hydrogen energy at the cathode. Mechanistic studies reveal that hydroxyl radicals generated via water electrolysis initiate the oxidative coupling of 5-aminotetrazole, achieving a SATz yield of 75.2% under optimized conditions. The CoSe 2 @MoSe 2 @Pt/NF cathode exhibits exceptional HER catalytic activity with a low overpotential of 192 mV at 100 mA·cm −2 and a Tafel slope of 50.2 mV·dec −1 , along with remarkable stability. Notably, the assembled coupling system requires a substantially reduced cell voltage of only 1.44 V to achieve 10 mA·cm −2 , significantly lower than that of conventional overall water splitting (>1.71 V). This work presents a sustainable and energy-efficient strategy for the simultaneous production of green energetic materials and clean hydrogen fuel, opening new avenues for advanced electrocatalytic coupling systems. Download: Download high-res image (166KB) Download: Download full-size image
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xin Zhang,Shukai Chen,Jiazhen Cai,Shane King,Cai Liu,Wenjing Yuan,Rong Wang,Gongkai Wang
Stretchable supercapacitors with simultaneously high energy/power densities and long life can enrich integrated power options for ever-increasing wearable electronics. However, supercapacitors with high electrochemical performances while maintaining high stretchability are still challenging. Herein, we report stretchable sodium ion capacitors (S-SICs) based on multi-dimensionally and hierarchically elastomeric composite electrodes, and stretchable high voltage gel polymer electrolyte (3.0 V). The elastomeric composite electrode is constructed by stretchable 3D electrospun polyurethane (PU) fibrous mat and conductive 1D Ag nanowire network. 2D MoSe 2 /MXene and 3D AC/MXene as anodic and cathodic materials are embedded in this conductive and stretchable mat. This hierarchical structure enables multi-dimensional conductive connections under tensile condition. The pre-strain treatment on PU fibrous mat further increases the relatively stretching distance before losing conductive connection among hierarchical components. The electrodes exhibit superior sodium ion storage performances (420 mAh g −1 at 5 A g −1 ), as well as good stretchability and stability (95% after 1000 cycles at 2 A g −1 ). Based on this, the S-SICs with high operating voltage demonstrate high energy/power densities (max. 5.44 mWh cm −3 , 493.55 mW cm −3 ) and good stretchability. This prototypical exhibition of S-SICs indicates a promising design direction of stretchable supercapacitors with high electrochemical performances and tolerance of stretchability.
研究领域:
材料科学
·
能源存储
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产品关联
DOI
高影响因子
Advanced Science
·
2026
·
IF 14.1
Yajun Zhu,Jiaqi Gu,Guangwu Zhang,Tianli Han,Yang Lu,Zhongbing Li,Hang Su,Fei Wang,Haojun Xu,Wentuan Bi,Qiye Zheng,Jinyun Liu
Silicon anodes offer high theoretical capacity for lithium-ion batteries but suffer from volume-change-induced instability and degradation. Conventional van der Waals coatings yield unstable interfaces and poor ion/electron transport, while thermal transport remains underexplored. Here, we propose heterointerface-engineered Si@MoSe 2 @C anodes with chemically bonded interfaces, where lattice-matched MoSe 2 covalently bridges porous Si and carbon coating, forming robust Si─Se─Mo linkages that stabilize the structure and optimize transport pathways. The Si@MoSe 2 @C anode delivers 1054 mAh g −1 after 100 cycles at 0.2 A g −1 —exceeding most Si anodes—and 99.5% Coulombic efficiency over 400 cycles at 1.0 A g −1 , with high cycling efficiency demonstrated in both liquid and all-solid-state lithium-ion batteries (ASSLIBs). In situ X-ray diffraction, Raman spectroscopy, and electron microscopy/spectroscopy, together with first-principles calculations, confirm that this MoSe 2 -mediated covalent bridging enables reversible reactions with favorable kinetics and structural integrity by strengthening and delocalizing Se─Si bonding and reducing Li + migration barriers by 24%. Critically, we present the first measurements of the effective thermal conductivity of a silicon-anode composite, showing that Si@MoSe 2 @C exhibits a 27% higher value than Si, addressing long-overlooked cell-level thermal-management requirements and improving elevated-temperature cell performance. This heterointerface design provides a synergistic strategy for engineering high-performance Si anodes across batteries with enhanced safety.
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）