JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Zhong Dong,Xu Wu,Mengying Chen,Hanxiao Chen,Ke-Jing Huang,Lingling Wang,Jing Xu
Pure phase MoS 2 has low conductivity, but with high theoretical specific capacity, and WS 2 possesses a high intrinsic conductivity, but suffer from rapid capacity fading. Predictably, the combination of these two transition metal sulfide compounds can complement each other and improve electrochemical performance comprehensively. Whereas, bimetallic phase sulfide of MoS 2 and WS 2 composites have not been researched in SIBs . In this paper, 1T metallic phase MoS 2 and WS 2 vertically growth on flexible carbon cloth (CC) surface (1T-MoS 2 @WS 2 @CC) by a simple hydrothermal method. The electrochemical performance was improved by heterojunction synergistic effect and the enhanced interlayers of the composite material. Specifically, the superelevation reversible capacity of 529.4 mAh/g can be obtained even after 100 cycles at the current density of 100 mA g −1 , and the 259.2 mAh/g capacity can be maintained even at high current density of 1000 mA g −1 after 60 cycles. Besides, the designed 1T-MoS 2 @WS 2 @CC composite material has excellent rate performance and cycle stability which are guarantee for battery core performance. Thus, there is every reason to believe that the advanced 1T-MoS 2 @WS 2 @CC electrode material has great potential in the future high performance energy storage devices.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Zhuangzhi Wu,Rongbin Zhang,Hao Fei,Ruoqi Liu,Dezhi Wang,Xinli Liu
The NH 3 is generally synthesized by the traditional Haber–Bosch method, which is energy-consuming and releases a lot of CO 2 . Electrocatalytic fixation of N 2 is highlighted as a carbon-free route to generate NH 3 by the nitrogen reduction reaction (NRR), but strongly demands highly efficient and durable electrocatalysts. Herein, we propose the multiphasic 1T@2H-MoSe 2 as a highly active NRR catalyst for the first time, which exhibits excellent activity for the NRR with a NH 3 yield of 19.91 ± 0.89 μg h −1 mg cat . −1 and a FE of 2.82% ± 0.1% at −0.6 V in 0.1 M Na 2 SO 4 . Moreover, a good durability is also demonstrated.
研究领域:
材料科学
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化学工程
·
催化科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wei Guo,Xiaofeng Li,Taihua Zhang,Xueting Chang,Yan An
Aiming at wearable low-grade heat harvesting, we developed a facile drop‑casting strategy to fabricate freestanding polyaniline/1 T-phase molybdenum disulfide (PANI/1 T-MoS 2 ) composite thick films (~37 μm), using m -cresol as the processing solvent and camphorsulfonic acid (CSA) as the dopant. The composite films successfully decouple the conventional trade-off between electrical conductivity ( σ ) and Seebeck coefficient ( S ) through interfacial coupling and carrier regulation enabled by 1 T-MoS 2 . The optimized PANI‑MoS 2 ‑25 sample delivers a maximum power factor ( PF ) of 26.18 μW·m −1 ·K −2 at 378 K, representing an ~19‑fold enhancement over pristine PANI, together with a low thermal conductivity of 0.22 W·m −1 ·K −1 at 298 K, yielding a ZT ≈ 0.05. The film exhibits excellent mechanical reliability, retaining 94.1% of its initial σ and 96.3% of its initial S after 1000 bending cycles at a radius of 8 mm. A ten‑leg series‑connected flexible thermoelectric generator (F‑TEG) assembled from this film produces an open‑circuit voltage of 4.781 mV at Δ T = 10 K (simulating body‑heat harvesting) and 20.716 mV at Δ T = 43 K, with a maximum output power of 0.729 μW and a peak power density of 9.1 μW·cm −2 . This work provides a feasible material platform and processing route for developing wearable thermoelectric devices that combine high output performance, remarkable flexibility, and simple fabrication.
✓ 已验证
DOI
高影响因子
Nature Protocols
·
2026
·
IF 18.4
Zhai Wei,Shi Zhenyu,Tao Rui,Li Zijian,Dong Dan,Tang Jiabei,Wang Wenbin,Wang Lixin,Yang Hua,Zhai Li,Ruan Xinyang,Wu Yuxuan,Wang Jie,Yao Yao,Zhao Chen,He Qiyuan,Lai Zhuangchai,Zhang Hua
With the increasing progress in the emerging field of phase engineering of nanomaterials, transition metal dichalcogenides (TMDs) with metastable phases have attracted extensive research interest owing to their unique physicochemical properties and promising potential for various applications. Unlike their semiconducting counterparts, metastable 1T′-phase group VIB TMDs exhibit distinctive metallic behavior, making them highly promising for clean energy electrocatalysis (for example, hydrogen evolution), high-performance electronics and superconducting devices. However, conventional synthetic strategies usually suffer from low yields, poor phase purity, small crystal size and harsh experimental conditions, hindering their fundamental research and practical applications. Here we describe a salt-assisted method for the controlled preparation of various metastable 1T′-phase group VIB TMDs with high crystalline quality and high phase purity. In this context, ‘salt-assisted’ refers to the co-annealing of commercially available 2H-phase TMDs, chalcogen powders (for example, S or Se) and alkali metal salts (for example, K 2 C 2 O 4 ·H 2 O or K 2 CO 3 ). When heated in a tube furnace under an H 2 /Ar atmosphere, these alkali metal salts trigger a phase transformation of TMDs from the thermodynamically stable 2H phase to the metastable 1T′ phase. This Protocol describes the details of experimental procedures to prepare a series of 1T′-TMDs, that is, MoS 2 , MoSe 2 , WS 2 , WSe 2 , MoS 2 x Se 2(1− x ) and WS 2 x Se 2(1− x ) . It takes ~37 h 20 min and yields robust 1T′-TMD crystals with their size of up to hundreds of micrometers at a gram scale (up to ~2 g per batch), overcoming the longstanding synthetic bottlenecks and paving the way for advanced fundamental studies and the exploration of practical applications.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Cuiqing Zhou,Mushan Yuan,Xiaochuang Di,Shaoyu Qiu,Mei Liang,Yinfu Luo,Huawei Zou
With the rapid advancement of communication technology, electromagnetic pollution has become a critical issue, driving the demand for lightweight, broadband, and efficient electromagnetic wave (EMW) absorption materials. However, achieving effective low-frequency EMW absorption remains challenging due to the trade-off between attenuation capability and impedance matching. Here, we report a novel MoS 2 /CNT carbon foam (MC@CF) derived from pyrolyzed polyimide composite foam integrated with hydrothermally synthesized MoS 2 /CNT. By precisely controlling the 1T-phase content and leveraging the 3D interconnected porous architecture and heterogeneous interfaces, improved impedance matching and enhanced EMW dissipation are achieved. The MC@CF demonstrates exceptional low-frequency absorption, with a minimum reflection loss (RL min ) of −65.6 dB in the C band and −49.4 dB at 2.25 GHz in the S band. Additionally, the foam exhibits a remarkable radar cross-section (RCS) reduction of 26.1 dB·m 2 , high compressive strength (1.45 MPa), and superior thermal insulation, making it promising for extreme environment applications.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Qingyun Liu,Yi Wang,Tianzhao Hu,Shaorui Chen,Yaozu Wang,Hui Zhao,Wu Zhang,Zhigang Yuan,Yulian Wang,Zhenhua Sun,Feng Li
Achieving high energy density in aqueous asymmetric electrochemical capacitors hinges on the development of electrode materials that combine exceptional capacitance with superior conductivity. Despite its high theoretical capacitance, Ni(OH)2 is limited by low intrinsic conductivity, significantly limiting its performance. In this study, a Mn–Ni(OH)2@1T-MoS2 heterostructure was synthesized through a facile growth method, achieving significant electrochemical performance boost. The lattice matching at the heterointerface induces a controlled lattice expansion in Mn–Ni(OH)2, while the interfacial interactions promote electron transfer from Mn–Ni(OH)2 to 1T-MoS2. These synergistic effects enhance conductivity and active site utilization, addressing the core challenges of pristine Ni(OH)2. As a result, the heterostructure exhibits a high specific capacity of 244.2 mA h g−1 at 1 A g−1 and a rate capability of 51.4% at 12 A g−1. Moreover, the assembled asymmetric electrochemical capacitor delivers an energy density of 61.67 W h kg−1 at 600 W kg−1 and maintains 72.7% capacity retention after 10 000 cycles at 5 A g−1. This work not only highlights the critical role of heterointerfaces in enhanced electrochemical performance but also provides a robust strategy for designing high-performance energy storage systems.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Yanyan Geng,Haoyu Dong,Renhong Wang,Jianfeng Guo,Shuo Mi,Le Lei,Yan Li,Li Huang,Fei Pang,Rui Xu,Weiqiang Yu,Hong-Jun Gao,Wei Ji,Weichang Zhou,Zhihai Cheng
The delicate interplay among the complex intra/inter-layer electron–electron and electron–lattice interactions is the fundamental prerequisite of these exotic quantum states, such as superconductivity, nematic order, and checkerboard charge order. Here, we explore the filling-dependent multiple stable intertwined electronic and atomic orders of the flat-band state of 1T-TaS2 encompassing hole order, phase orders, coexisting left- and right-chiral orders, and mixed phase/chiral orders via scanning tunneling microscopy (STM). Combining first-principles calculations, the emergent electronic/atomic orders can be attributed to the weakening of electron–electron correlations and stacking-dependent interlayer interactions. Moreover, achiral intermediate ring-like clusters and nematic charge density wave (CDW) states are successfully realized in intralayer chiral domain wall and interlayer heterochiral stacking regions through chiral overlap configurations. Our study not only deepens the understanding of filling-dependent electronic/atomic orders in flat-band systems but also offers perspectives for exploring exotic quantum states in correlated electronic systems.
研究领域:
凝聚态物理
·
强关联电子系统
·
量子材料
·
表面科学
·
电子结构理论
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 23
·11607-11616
·
IF 11.301
Qiaozhi Sun,Biao Zhang,Lechen Diao,Biao Chen,Kai Song,Liying Ma,Fang He
The electrocatalytic hydrogen evolution reaction (HER) in water–alkali and chlor–alkali electrolyzers is an indispensable source of H2 supply for industrial applications. Transition metal dichalcogenides (TMDs) have been demonstrated to be highly promising for the HER, but they are mostly operated in acidic solutions. Rationally designing TMD electrocatalysts towards efficient alkaline HER still remains challenging. Herein, we report a controllable atomic engineering of nitrogen atoms into 1T′-phase ReS2 using a simple one-step method. The optimized material shows a greatly enhanced HER performance under alkaline conditions, achieving a low overpotential of 90 mV at 10 mA cm−2 and outstanding stability (with negligible activity decay during the 140 h test). Density functional theory calculations reveal that rational N-implanting remarkably promotes H2O dissociation and H adsorption/desorption on the edge active sites of ReS2, and meanwhile increases electronic states near the Fermi level for improved charge transfer. Such ensemble effects are proposed to account for the much improved HER activity. The work broadens the horizon for designing TMD materials via atomic-site engineering for alkaline HER or other catalysis reactions.
研究领域:
材料科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Jia-Cheng E. Yang,Min-Ping Zhu,Xiaoguang Duan,Shaobin Wang,Baoling Yuan,Ming-Lai Fu
Two-dimensional layered MoS 2 recently demonstrates great potentials in water purification via adsorption and catalysis. The structure-catalysis relationship of MoS 2 has not been well addressed. Herein, we investigated the mechanistic difference of 1 T-2H MoS 2 homojunctions in catalytic activation of peroxymonosulfate (PMS) and peroxydisulfate (PDS) for degrading butyl paraben (BPB). PMS/1 T-2H MoS 2 attains higher performance in BPB removal compared to PDS/1 T-2H MoS 2 . 1 T phase in MoS 2 primarily contributed to PMS activation to produce SO 4 − , OH and 1 O 2 , while the defects in MoS 2 coordinated the PDS activation to generate OH, 1 O 2 and O 2 − . Nevertheless, OH-induced BPB removal was the top priority for PMS/1 T-2H MoS 2 and PDS/1 T-2H MoS 2 . The different activation pathways and reactive species resulted in the varying BPB removal, by-product distributions and toxicity. This work provides new insights into the different functions of MoS 2 in persulfates activation and the guidance in rational design of oxidant-oriented MoS 2 composites for sewage purification.
研究领域:
环境科学
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材料科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2022
·
IF 4.291
Shufang Ren,Wangyong Cui,Ying Liu,Shounian Cheng,Qingtao Wang,Runyan Feng,Zhixiang Zheng
1T phase molybdenum disulfide (MoS 2 ) possesses excellent electrical conductivity , 10 7 times higher than that of 2H phase MoS 2 . Thus, metallic 1T MoS 2 is highly desirable for electrochemical analysis and catalysis. In this study, hybrid 1T/2H MoS 2 /multi-walled carbon nanotubes (MoS 2 /MWCNTs) composite was prepared by a facile and simple hydrothermal approach. Powder X-ray diffraction, field emission scanning and transmission electron microscopes, Fourier transform infrared spectroscopy, Raman spectroscopy , cyclic voltammetry (CV), and electrochemical impedance spectroscopy were used to characterize the composites. The results show that metallic 1T phase MoS 2 was formed by the inductive effect of MWCNTs. The high conductivity and large specific surface area of hybrid 1T/2H MoS 2 /MWCNTs composite endow great catalysis activity in electrochemical analysis. Polypyrrole molecularly imprinted polymer (MIP) film imprinted with acetaminophen (AP) template was electrochemically deposited on glassy carbon electrode (GCE) modified by 1T/2H MoS 2 /MWCNTs (MoS 2 /CNTs/GCE) to construct MIP based sensor. The prepared MIP/MoS 2 /CNTs/GCE sensor shows a sensitive current response towards AP. Through the optimization of the ratio of monomer and template, CV electropolymerization cycles, CV elution cycles, incubation time, and pH, the accessible linear range of 0.01–300 μM was obtained with the limit of detection of 0.003 μM (S/N = 3) by differential pulse voltammetry . In addition, the prepared sensor shows great detecting robustness with excellent selectivity , anti-interference property, reproducibility, and stability. In the urine sample tests, the sensor shows desirable reliability with the recovery rate of 88.1–95.9%.
研究领域:
分析化学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2022
·
IF 12.92
Chao Ding,Chengxiao Zhao,Shi Cheng,Xiaofei Yang
Solar-powered photocatalytic hydrogen production from water using semiconductors provides an eco-friendly and promising approach for converting solar energy into hydrogen fuel. Bulk semiconductors generally suffer from certain limitations, such as poor visible-light utilization, rapid recombination of charge carriers, and low catalytic capability. The key challenge is to develop visible-light-driven heterojunction photocatalysts that are stable and highly active during the water splitting process. Here, we demonstrate the integration of one-dimensional (1D) CdS nanorods with two-dimensional (2D) 1T-phase dominated WS 2 nanosheets for constructing mixed-dimensional heterojunctions for the photocatalytic hydrogen evolution reaction (HER). The resulting 1D CdS/2D WS 2 nanoheterojunction exhibited an ultrahigh hydrogen-evolution activity of ∼70 mmol·g −1 ·h −1 that was visible to the naked eye, as well as long-term stability under visible light illumination. The results reveal that the synergy of hybrid nanoarchitectures and intimate interfacial contact between the 1D CdS nanorods and 1T-phase dominated 2D WS 2 nanosheets facilitates charge carrier transport, which is beneficial for achieving superior hydrogen evolution.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2023
·
IF 3.8
Jinchao Chen,Zhi Chen,Wan Zhao,Yurong Liu,Jianhao Wu,Weiwei Wang,Xiangyu Chen,Jingyang Gao,Jinglei Hu,Lili Xie,Qiyan Wei,Lan Li
Molybdenum disulfide (MoS 2 ) is a member of promising transition-metal dichalcogenides (TMDs); however, its practical application is restricted due to the heavy aggregation. 1T/2H-MoS 2 decorated with SiO 2 nanospheres was successfully prepared through a facile hydrothermal process demonstrating improved behavior for the visible-light-driven treatment of aquatic antibiotic residues. The prepared samples were characterized by XRD, Raman spectra, SEM, TEM, XPS, and KPFM systematically. The improved properties are related to the increased light absorption, decreased accumulation of 1T/2H-MoS 2 , and the reduced recombination of electron-hole pair due to the introduction of SiO 2 . Moreover, the scavenger studies confirm that superoxide radicals (⋅O 2 − ), hydroxyl radicals (⋅OH), and holes (h + ) play a vital role in the photocatalytic degradation of TC-HCl, and a possible mechanism for photocatalysis is discussed. This work provides a promising strategy to modify the photocatalytic performance by simply dispersing the photocatalyst with another component such as SiO 2 .
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）