MICROCHEMICAL JOURNAL
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2026
·
IF 5.1
Qing Huang,Ruixian Bi,Yalai Cen,Chendong Ling,Wenfeng Zhuge,Jinyun Peng,Cuijie Nong,Cuizhong Zhang,Qiongfang Zhou
This experiment constructed a heterostructure composite material of copper tungstate and molybdenum disulfide (CuWO 4 @MoS 2 ) through an interfacial regulation strategy. The samples were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Based on CuWO 4 @MoS 2 heterojunction materials, electrochemical sensors were constructed for the detection of o-aminophenol (OAP). Research has indicated that interface regulation CuWO 4 @MoS 2 it can effectively improve electron transfer ability, enhance structural stability, and thus improve electrochemical activity. Under optimal conditions, differential pulse voltammetry (DPV) was used to detect OAP in the concentration range of 0.3–14.8 μM and 14.8–74.1 μM, and the electrochemical response peak current showed two linear segments, namely, Ip (μA) = 7.27 × 10 −2 C (μM) - 1.76 × 10 −2 (R 2 = 0.9983) and Ip (μA) = 2.40 × 10 −2 C (μM) + 0.7 (R 2 = 0.9904). This method achieved a detection limit as low as 0.027 μM. The actual sample of OAP was detected using the spiked recovery method, and the recovery rate was measured to be 98.00% - 100.00%, with favorable results. In summary, the electrochemical sensor constructed in this experiment has easy operation, low cost, anti-interference, and reliable stability and can be used for rapid detection of OAP in river water.
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DOI
高影响因子
MATERIALS CHARACTERIZATION
·
2024
·
IF 4.8
Yijian Liang,Haohui Ou,Benxuan Li,Wenjing Zhang
Bilayer (BL) two-dimensional transition metal dichalcogenides (TMDs) exhibit excellent properties in carrier mobility , state density, and room temperature stability, which attract considerable attention. However, previous efforts on synthesis BL TMDs have lacked homogeneity and control over the number of layers. Here, we demonstrate an effective and controllable approach to synthesize highly uniform 3R phase BL MoS 2 on a c-plane sapphire substrate . The number of MoS 2 layer can be controlled by adjusting the confinement distance, sapphire step height (annealing temperature), and growth temperature. These influencing factors have been thoroughly investigated. Raman and PL analyses demonstrate bilayer properties and remarkable uniformity. SHG and HAADF-STEM measurements reveal 3R stacking structure of BL MoS 2 . Furthermore, field-effect-transistor (FET) devices fabricated using BL MoS 2 domains exhibit high carrier mobility and on/off ratio. This work provides an efficient method for layer-controlled MoS 2 growth and offers new insights into the growth mechanism of BL MoS 2 .
研究领域:
材料科学
·
物理化学
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DOI
高影响因子
Matter
·
2020
·
IF 0
Shiqi Guo,Kaijin Wu,Chengpan Li,Hao Wang,Zheng Sun,Dawei Xi,Sheng Zhang,Weiping Ding,Mona E. Zaghloul,Changning Wang,Fernando A. Castro,Dong Yang,Yunlong Zhao
Smart contact lenses attract extensive interests due to their capability of directly monitoring physiological and ambient information. However, previous demonstrations usually lacked efficient sensor modalities, facile fabrication process, mechanical stability, or biocompatibility. Here, we demonstrate a flexible approach for fabrication of multifunctional smart contact lenses with an ultrathin MoS 2 transistors-based serpentine mesh sensor system. The integrated sensor systems contain a photodetector for receiving optical information, a glucose sensor for monitoring glucose level directly from tear fluid, and a temperature sensor for diagnosing potential corneal disease. Unlike traditional sensors and circuit chips sandwiched in the lens substrate, this serpentine mesh sensor system can be directly mounted onto the lenses and maintain direct contact with tears, delivering high detection sensitivity, while being mechanically robust and not interfering with either blinking or vision. Furthermore, the in vitro cytotoxicity tests reveal good biocompatibility, thus holding promise as next-generation soft electronics for healthcare and medical applications.
研究领域:
生物医学工程
·
柔性电子学
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可穿戴医疗设备
·
眼科诊断
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生理监测
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纳米生物技术
·
转化医学
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DOI
PubMed
ACS Applied Nano Materials
·
2022
·
IF 6.14
Zhikang Wu,Feifei Li,Huihui Ye,Xiao Huang,Hai Li
Despite their excellent properties, the low light absorption efficiency of atomically thin transition metal dichalcogenide (TMDC) nanosheets limits their application in optoelectronics. Many efforts have been devoted to enhance the light–matter interaction of the TMDC nanosheets. Among them, coupling the TMDC nanosheet with photoactive materials has drawn extensive attention. Recently, forming one-dimensional nanoscrolls from monolayer TMDC nanosheets has also been proven to be an effective way of improving the photodetection performance of TMDC nanosheets. Herein, photoactive PbI2 nanocrystals were first deposited on a monolayer MoS2 nanosheet grown by chemical vapor deposition using a solution processing method (referred to as PbI2/MoS2). After PbI2/MoS2 was immersed into a mixture of ammonia and isopropanol, PbI2/MoS2 nanoscrolls with sizes of up to several tens of micrometers were formed in a short time. The density of PbI2 nanocrystals on the MoS2 nanosheet was highly dependent on the concentration and immersion time in PbI2 solution. Atomic force microscopy, optical microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy were used to characterize the PbI2/MoS2 nanosheet and nanoscroll. The as-prepared PbI2/MoS2 nanosheet and nanoscroll showed photosensitivities 2 orders of magnitude higher than those of the MoS2 nanosheet and nanoscroll in visible light, which could be attributed to the type II heterointerface in the PbI2/MoS2 nanosheet and multiple PbI2/MoS2 heterointerfaces in the scrolled structure. Our work indicates that the PbI2 nanocrystal-decorated MoS2 nanoscroll could be a promising candidate for high-performance optoelectronic devices.
研究领域:
纳米材料
·
光电子学
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纳米光子学
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材料科学
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DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2017
·Vol. 24
·期 5
·1080-1087
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IF 5.317
Chengli Wang,Yingchun Su,Xiaole Zhao,Shanshan Tong,Xiaojun Han
A novel MoS 2 -based flower-like nanohybrid for hydrogen evolution was fabricated through coating the Cu-containing metal-organic framework (HKUST-1) onto MoS 2 nanosheets. It is the first time that MoS 2 @HKUST-1 nanohybrids have been reported for the enhanced electrochemical performance of HER. The morphologies and components of the MoS 2 @HKUST-1 flower-like nanohybrids were characterized by scanning electron microscopy, X-ray diffraction analysis and Fourier transform infrared spectroscopy. Compared with pure MoS 2 , the MoS 2 @HKUST-1 hybrids exhibit enhanced performance on hydrogen evolution reaction with an onset potential of −99 mV, a smaller Tafel slope of 69 mV dec −1 , and a Faradaic efficiency of nearly 100 %. The MoS 2 @HKUST-1 flower-like nanohybrids exhibit excellent stability in acidic media. This design opens new possibilities to effectively synthesize non-noble metal catalysts with high performance for the hydrogen evolution reaction (HER). Graphical Surprise HER with flowers : A novel MoS 2 -based flower-like nanohybrid for hydrogen evolution was fabricated through coating the Cu-containing metal-organic framework (HKUST-1) onto MoS 2 nanosheets (see figure). This design opens new possibilities to effectively synthesize non-noble metal catalysts with high performance for the hydrogen evolution reaction (HER).
研究领域:
材料科学
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电化学
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纳米技术
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能量转换
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2018
·
IF 4.229
Yizhe Liu,Jiapeng Liu,Zhen Li,Xiaobin Fan,Yang Li,Fengbao Zhang,Guoliang Zhang,Wenchao Peng,Shaobin Wang
Porous graphene (P-rGO) was synthesized from graphene oxide (GO) via a one-pot calcination method with CO 2 as an activation agent at 800 °C. Due to the special porous structure , the surface area of P-rGO can be increased to ∼759 m 2 /g. The P-rGO was then used as a support to incorporate with chemical exfoliated molybdenum disulfide (MoS 2 ) for the fabrication of MoS 2 /P-rGO composite. Compared to bulk MoS 2 , the exfoliated MoS 2 is in the 1T phase with a metallic property and smaller charge transfer resistance , thus has a better activity in electrochemical hydrogen evolution reaction (HER). The HER activity of 1T MoS 2 could be further increased after the combination with P-rGO. The overpotential of 1T MoS 2 /P-rGO was only ∼130 mV vs. RHE , and the corresponding Tafel slope was ∼75 mV Dec −1 . The special porous structure and good electric conductivity of P-rGO decrease the charge transfer resistance of the composite without sheltering too many active sites of MoS 2 , thus leading to the enhanced HER activity. As an efficient noble metal free HER catalyst, the 1T MoS 2 /P-rGO has great potential for large-scale hydrogen production .
研究领域:
材料科学
·
电化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2019
·
IF 6.361
Lei Liu,Xiaolin Liu,Songlong Jiao
The catalytic activity of MoS 2 for hydrogen evolution reaction (HER) is closely-related to its active edge sites and electrical conductivity . In this work, a novel strategy to enhance HER by introducing defects into interface to take advantage of synergistic effect between them was reported. Specifically, in the first step, molybdenum disulfide (MoS 2 ) with additional active edge sites was prepared through defect engineering, and then copper sulphide(CuS)@defect-rich MoS 2 core-shell structure with better electron transport capability was constructed, thus achieving high-efficiency HER by synergistic effect. Benefiting from the additional active edge sites of the defect-rich MoS 2 and the improved charge transport facilitated by the intimate interface, CuS@defect-rich MoS 2 could afford a current density of 10 mA·cm −2 at a low overpotential of 135 mV and a Tafel slope of 50 mV·dec −1 , as well as relatively long-term stability.
研究领域:
材料科学
·
催化化学
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DOI
高影响因子
NANO
·
2019
·
IF 1.293
Hongxiao Zhao,Yong Yan,Xiaohui Song,Aodi Dong,Jian Su,Huimin Jia
Constructing van der Waals (vdW) heterostructures with various-layered two-dimensional (2D) materials is attractive to design various materials and devices. For controllable fabrication of vdW heterostructures, it is very important to make the growth process clear. In this work, SnS 2 /MoS 2 vertical heterostructures were synthesized by the one-step chemical vapor deposition (CVD) method. The bottom MoS 2 triangle layers can be partially or completely covered by SnS 2 layers. The interlayer charge separation was also observed in the heterostructures by photoluminescence (PL) spectroscopy. The growth mechanism of SnS 2 /MoS 2 vertical heterostructures was also discussed for the first time. MoS 2 triangle layers form on the substrates at first and then grow a top layer of SnS 2 . This study will provide an important and practical method, as a guidance to prepare high-quality vertical heterostructures.
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DOI
高影响因子
Journal of Sulfur Chemistry
·
2026
·
IF 1.7
Laigong Guo,Yuyang Wang,Xingyu Liu,Tao Ge
The limited van der Waals force between MoS2 and the graphene substrate in MoS2/graphene heterojunctions can lead to problems such as partial aggregation of MoS2 nanosheets, uncontrollable geometric structures, and loose binding of the robust scaffold. To address these issues, this study explored a strategy of coating MoS2 with dopamine and carbonizing it under microwave-assisted conditions to optimize the lithium storage structure. The research results showed that MoS2/polydopamine mass ratio of 1:1 and microwave radiation power of 700 W were the optimal process conditions for the preparation of MoS2@C composite materials. At this point, MoS2 was completely embedded in the carbon framework, and the carbon layer provided good electrical conductivity and could suppress the structural changes of MoS2. The MoS2@C structure exhibited excellent adsorption performance for Li+, which was beneficial for the storage and transfer of Li + during charge and discharge cycles.
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DOI
高影响因子
Journal of Energy Chemistry
·
2026
·
IF 15.6
Zhiqiang Liu,Henghui Jin,Yongping Du,Weicheng Zhan,Leiming Lang,Guangxiang Liu,Jiangtao Yuan,Pan Feng,Li Tao,Jian Zhang,Guoqiang Luo,Changlin Dong,Jiajun Gu,Wenshu Chen
Restacked two-dimensional (2D) material thin films offer a promising approach for achieving high volumetric energy density supercapacitors, but their ultimate rate performance is constrained by electrolyte ion transport properties. This work systematically investigates the electrochemical behaviors and underlying mechanisms of restacked 1T−MoS 2 films in various aqueous electrolytes. In 1 M CsCl electrolyte, an 8.5-μm-thick 1T−MoS 2 film electrode exhibits ultrafast ion storage kinetics with a b -value of 0.94 and a remarkable volumetric capacitance ( C v ) of 221 F cm −3 at 1,000 mV s −1 , significantly outperforming other ionic systems. The electrode also demonstrates excellent cycling stability with 87% capacitance retention after 10,000 cycles at 10 A g −1 . Compared to reported advanced graphene, MXene, and oxide-based electrodes, the 1T−MoS 2 film electrodes in 1 M CsCl show an integrated advantage of ultrathin characteristic and ultrahigh C v under considerable high scan rates of 500 to 1,000 mV s −1 . Theoretical calculations reveal that Cs + possesses the lowest diffusion barrier between 1T−MoS 2 interlayers, where its weak solvation effect facilitates rapid ion storage kinetics. This work not only elucidates the ultrafast transport mechanism of Cs + within confined 2D spaces, but also provides insights into developing next-generation ultrafast energy storage devices with high volumetric energy densities through optimized electrolyte–electrode synergy. The electrochemical ion storage behaviors and underlying mechanisms of restacked 1T−MoS 2 film electrodes in various aqueous electrolytes were systematically investigated. The electrodes exhibit ultrafast charge storage kinetics in 1 M CsCl, demonstrating the combined advantages of ultrathin feature and ultrahigh volumetric capacitance at scan rates as high as 1000 mV s −1 , significantly outperforming state-of-the-art reported electrode materials. Download: Download high-res image (188KB) Download: Download full-size image
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DOI
高影响因子
Matter
·
2025
·Vol. 9
·期 2
·
IF 17.5
Yuanyuan Qiu,Zhuo Zhao,Shuo Qiao,Yue Lu,Chaodan Pu,Qingqing Ji
Nonvolatile memories based on low-dimensional materials are pivotal for miniaturized data storage but face challenges in endurance and charge retention. We report a mixed-dimensional memory architecture integrating monolayer MoS 2 with CdSe@CdS core-shell quantum dots (QDs) to address these limitations. By synthesizing polyhedral QDs with facet-engineered surfaces and electrochemically inert passivating ligands, interfacial defects are substantially minimized, enabling efficient charge confinement within CdSe cores via Fowler-Nordheim tunneling. The optimized heterostructure device demonstrates a memory window of 140 V, an on/off ratio of 10 6 , endurance exceeding 5 × 10 4 cycles, and 96.5% charge retention over 10 years—outperforming previously reported QD-based memories. Furthermore, the cascaded charge transfer mechanism (MoS 2 →CdS→CdSe), corroborated by electrical measurements, highlights the critical role of synergistic structural and surface optimization in suppressing charge leakage. This work establishes a scalable platform combining 2D semiconductors and defect-engineered QDs, offering insights into charge dynamics and advancing the development of high-performance, nanoscale nonvolatile memories.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 12
·892
·
IF 3.2
Fan Shumin,Zhang Shan,Yang Xinxiang,Gao Xing,Song Xin,Lu Chunxiao,Zhang Liwen,Li Yong
Ferroelectric materials offer a transformative solution for developing high-responsivity photodetectors by leveraging their unique photovoltaic effect. However, the low output photocurrent that is associated with carrier separation efficiency is the main issue that restricts the applications of ferroelectric photodetectors. Here, constructing a MoS 2 /YMO/LSMO heterostructure, a high photocurrent density of 11.9 mA/cm 2 was achieved under standard solar illumination, representing an approximate 3.4-fold increase compared to the 3.50 mA/cm 2 observed in the YMO/LSMO structure. The significantly enhanced photocurrent output further improved the heterojunction’s photodetection performance, exhibiting a responsivity ( R ) of 0.72 A/W and a specific detectivity ( D * ) of 2.28 × 10 12 Jones. Furthermore, the device demonstrated excellent broad-spectrum detection capability, with a photoresponse range spanning from the ultraviolet (UV) to near-infrared (NIR) spectral region. The microscopic mechanism underlying the performance enhancement originates from the built-in electric field at the MoS 2 /YMO interface strengthening the driving force for carrier separation, while MoS 2 acting as an electron transport layer significantly improves the transport efficiency of charge carriers. This work provides novel insights into developing high output photocurrent photodetectors.
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DOI
高影响因子
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