Nanoscale
·
2026
·
IF 5.2
Hongliang Ma,Qiang Gao,Zhe Zhang,Kaige Yang,Jie Ding,Wendong Zhang,Xuge Fan
The exceptionally high specific surface area of two-dimensional (2D) materials has significantly promoted the development of 2D thin-film-based electronic devices for gas and humidity sensing. This work demonstrates an ultrasensitive electronic humidity sensor based on a monolayer MoS2/monolayer graphene Schottky diode. Within the relative humidity (RH) range of 15% to 55%, the MoS2/graphene Schottky diode based humidity sensor exhibited a remarkable responsivity (ΔR/R0) of approximately 1131.1%, which was three orders of magnitude higher than those of humidity sensors based on monolayer graphene (1.98%), graphene/MoS2 heterostructures (1.69%), and MoS2/graphene heterostructures (1.16%) and was over four times higher than that of monolayer MoS2 based sensors (271.1%). The ultra-sensitive humidity sensing mechanism was attributed to the modulation of the built-in electric field within the MoS2/graphene Schottky diode by adsorbed water molecules. These findings provide valuable insights for promoting the development of 2D material-based electronic devices in humidity sensing applications.
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DOI
PubMed
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2026
·
IF 6.9
Weihan Zhang,Xueli Huang,Xiaoning Zhang,He Huang,Bing Sun,Wei Jiang,Qiya Wang,Na Liu
Background Existing molybdenum-based catalysts exhibit unsatisfactory performance in coal tar hydro-upgrading due to limited active sites and weak cracking capability. Methods Supported NiMoS x @TiO 2 catalysts with a tunable Ni/Mo atomic ratio were prepared via a two-step method and applied in coal tar hydrogenation. Findings Importantly, Ni shows dual regulation over MoS 2 formation. With Ni/Mo ≈ 0.1, Ni promotes the conversion of Mo 7 S x O (21− x ) intermediates to highly dispersed, truncated MoS 2 slabs (1–2 layers, 3–8 nm), enhancing nucleation while suppressing stacking and achieving a 64.99 % gasoline and diesel yield. When Ni/Mo ≥ 0.3, excess Ni consumes sulfide to form NiS x and occupies TiO 2 anchoring sites, hindering MoS 2 growth and driving slab fusion into thicker aggregates (4–8 layers, 20–40 nm) that bury edges. This study reveals Ni’s dual-regulation mechanism on MoS 2 nucleation and layer-number evolution, which governs edge-site exposure and dictates coal-tar hydro-upgrading performance.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Mingyue Kang,Xuejing Shen,Hongyu Fan,Zhanjun Wu,Tao Sun
With the promotion of electric vehicles and electronic products, the development of high-capacity, fast-charging, and cost-effective rechargeable batteries has become extremely urgent. Aluminum-ion batteries (AIBs) have become a promising system due to their high aluminum reserves, high theoretical specific capacity, and high safety. However, their actual capacity is far lower than the real capacity due to the limitation of cathode. Here, we report a construction strategy of reduced graphene oxide-intercalated MoS 2 nanoflowers cathode via a hydrothermal method . It promoted the transition of MoS 2 crystal phase from 2H to 1T, and the expansion of interlayer spacing from 0.62 nm to 1.03 nm, overcoming the shortcomings of slow electrochemical reaction kinetics and low capacity caused by the outstanding semiconductor properties of 2H MoS 2 and the compact interlayers. The obtained batteries reached capacity up to 143 mAh g −1 , high Coulombic efficiency up to 96.9% at 1 A g −1 . The batteries retained 95.6% of the original capacity after 1000 cycles. Notably, it retains 75 mAh g −1 at ultrahigh current densities of 10 A g −1 over 10,000 cycles. Our methodology opens up an exciting way to design cathode architecture for next-generation AIBs. It also provides a new perspective for the design and preparation of other battery systems.
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产品关联
DOI
高影响因子
Advanced Energy Materials
·
2018
·Vol. 8
·期 30
·1801357
·
IF 21.875
Xianghong Li,Tingshuai Li,Yongjun Ma,Qin Wei,Weibin Qiu,Haoran Guo,Xifeng Shi,Peng Zhang,Abdullah M. Asiri,Liang Chen,Bo Tang,Xuping Sun
The industrial artificial fixation of atmospheric N 2 to NH 3 is carried out using the Haber–Bosch process that is not only energy-intensive but emits large amounts of greenhouse gas. Electrochemical reduction offers an environmentally benign and sustainable alternative for NH 3 synthesis. Although Mo-dependent nitrogenases and molecular complexes effectively catalyze the N 2 fixation at ambient conditions, the development of a Mo-based nanocatalyst for highly performance electrochemical N 2 fixation still remains a key challenge. Here, greatly boosted electrocatalytic N 2 reduction to NH 3 with excellent selectivity by defect-rich MoS 2 nanoflowers is reported. In 0.1 m Na 2 SO 4 , this catalyst attains a high Faradic efficiency of 8.34% and a high NH 3 yield of 29.28 µg h −1 mg −1 cat. at − 0.40 V versus reversible hydrogen electrode, much larger than those of defect-free counterpart (2.18% and 13.41 µg h −1 mg −1 cat. ), with strong electrochemical stability. Density functional theory calculations show that the potential determining step has a lower energy barrier (0.60 eV) for defect-rich catalyst than that of defect-free one (0.68 eV).
研究领域:
材料科学
·
电化学
·
催化化学
·
纳米科技
·
能源化学
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DOI
高影响因子
Nano-Micro Letters
·
2024
·Vol. 17
·期 1
·1-14
·
IF 31.6
Wang Jiaen,Ming Wei,Chen Longfu,Song Tianliang,Yele Moxi,Zhang Hao,Yang Long,Sarula Gegen,Liang Benliang,Yan Luting,Wang Guangsheng
The introduction of MoS 2 generates a “kill three birds with one stone” effect to the original binary MXene/ANF system: lubrication toughening mechanical performance; reduction in secondary reflection pollution of electromagnetic wave; and improvement in the performance of photothermal conversion.
After the introduction of MoS 2 into MXene/ANF (60:40), the strain and toughness were increased by 53.5% (from 18.3% to 28.1%) and 61.7% (from 8.9 to 14.5 MJ m −3 ), respectively. Fortunately, the SE R decreases by 22.4%, and the photothermal conversion performance was increased by 22.2% from ~ 45 to ~ 55 °C.
研究领域:
材料科学
·
纳米复合材料
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功能材料
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电磁学
·
高分子材料
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DOI
高影响因子
ACS Nano
·
2022
·
IF 18.027
Enze Wang,Zekun Chen,Run Shi,Zixin Xiong,Zeqin Xin,Bolun Wang,Jing Guo,Ruixuan Peng,Yonghuang Wu,Chenyu Li,Hongtao Ren,Xiaoyan Li,Kai Liu
Dynamic engineering of buckling deformation is of vital importance as it provides multiphase modulation of thin film devices. In particular, dynamic switch of buckles between one-dimensional (1D) and two-dimensional (2D) configurations in a single film system on rigid substrates is intriguing but very challenging. The current approach to changing buckling configuration is mainly achieved by varying the built-in stress at the film–substrate interface, but it is difficult to realize dynamic engineering on rigid substrates. Herein, we report a dynamic engineering of buckling deformation in MoS2 thin films by humidity-tuned interfacial adhesion. With the change of humidity, the MoS2 thin films deform from 1D telephone-cord buckles to 2D web-like buckles due to the hydrophilic nature of both MoS2 and substrate. Such 1D-to-2D evolution of buckles is attributed to the weakened interfacial adhesion of mixed deformation modes induced by humidity, which is verified by finite-element modeling. These buckled films further find potential applications as patterned templates for liquid condensation and sensing units for tactile sensors. Our work not only demonstrates the humidity-controlled dimensionality engineering of buckles in MoS2 thin films but also sheds light on the functional applications of buckled films based on their profile features.
研究领域:
材料科学
·
工程学
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DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
·
2021
·
IF 2.328
Jie Zhang,Tianyu Liu,Liangjie Fu,Gonglan Ye
As an emerging material, exfoliated molybdenum disulfide (MoS 2 ) has an excellent performance in catalysis, electronics and adsorption. However, the application performance of exfoliated MoS 2 is limited by the strong adhesion between MoS 2 layers and the low colloidal stability of MoS 2 in water. In this study, for the first time, nanosized ultrathin MoS 2 was successfully synthesized on exfoliated montmorillonite (MMT) by CVD method. Two reaction mechanisms were found when using flow gas with or without H 2 . The introduction of H 2 promotes the growth of MoS 2 crystals and reduces nucleation density. The MoS 2 /MMT showed excellent performance in dye degradation.
研究领域:
材料科学
·
催化化学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 22
·13100-13108
·
IF 12.732
Chuang Hou,Guoan Tai,Yi Liu,Zitong Wu,Zenghui Wu,Xinchao Liang
Flexible and wearable electronic sensing devices play an increasingly important role in human health monitoring and non-contact sensors towards human to machine interface technologies. Humidity sensors have been proven to be effective in real-time respiratory monitoring and diagnostic analysis. The p–n junction of borophene–MoS2 has been theoretically predicted to have an ultrahigh humidity sensing characteristic, but the experiment is still not reported. Herein, we demonstrated experimentally a borophene–MoS2 heterostructured sensor with ultrahigh sensitivity, fast response, long life, good flexibility and high selectivity. Its sensitivity at a relative humidity (RH) of 97% is as high as 15 500%, which is more than 90 or 70 times higher than that of borophene or MoS2 alone. The sensitivity is the highest among all the reported chemiresistive sensors based on 2D materials. The corresponding swift response and recovery times are much lower than those of borophene or MoS2 alone. Additionally, the sensor shows superior flexibility under bending strain. Compared with other organic vapors, the sensor for water vapor exhibits outstanding selectivity. Besides, we also demonstrate the multifunctional applications of the sensor in human breath diagnosis and non-contact switch sensing systems, which indicates the potential of borophene-based sensors in future health care and human–machine interaction systems.
研究领域:
材料科学
·
电子工程
·
生物医学工程
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DOI
高影响因子
JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2021
·Vol. 54
·期 40
·405101
·
IF 3.207
Wei-song Liu,Hui Yang,Lan Li
The heterostructure device based on polyvinylidene fluoride (PVDF)/MoS2 films was succesfully prepared and showed a good hysteresis feature with a unique resistive switching perpromance, where the logarithmic I–V curve looks like a butterfly. The on-off ratio for the resistive switching in the device based on PVDF/MoS2 films reaches 2.5 × 102 and the resistive switching happens at −0.9 V and −4.9 V for a half loop. The influence of the introduction of MoS2 and ferroelectric PVDF film was also studied and compared to a device based on a single film. The underlying physical mechanism for the unique resistive transition was attributed to the polarization field from the ferroelectric polymer PVDF and the S vacancies in MoS2.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2018
·
IF 3.997
Xueyi Zhang,Jianrong Wu,Gareth R. Williams,Shiwei Niu,Qianqian Qian,Li-Min Zhu
Molybdenum disulfide (MoS 2 ) has been extensively explored for biomedical applications due to its excellent photothermal conversion ability. In this paper, we report a nanoplatform based on folic acid (FA) targeted dual-stimuli responsive MoS 2 nanosheets and explore this for the treatment of FA-receptor positive human breast cancer. The nanocomposites generated had a uniform diameter (ca. 133 nm), and could be loaded with the anti-cancer drug doxorubicin (DOX) to a high capacity (151.4 mg/g). The release of DOX was greatly accelerated at pH 5.0 as compared to pH 7.4. In addition, it was found that drug release is enhanced under near infrared laser (NIR) irradiation, showing that the composites can be used as dual responsive systems, with DOX release controllable through pH or NIR irradiation. MTT assays and confocal experiments showed that the MoS 2 -based nanoplatform could selectively target and kill FA-positive MDA-MB-231 cells (a human breast cancer cell line). The platform also allowed the combination of chemotherapy and photothermal therapy, which led to synergistic effects superior to either monotherapy. The functionalized MoS 2 nanoplatform developed in this work hence could be a potent system for targeted drug delivery and synergistic chemo-photothermal cancer therapy.
研究领域:
生物医学工程
·
纳米技术
·
癌症治疗
·
药物递送系统
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Xinrui Zhang,Yao Yao,Yan Zhao,Yinzhou Yan
A monolayer-MoS 2 /ZnO-microtube heterostructure is fabricated for SERS detection. • Deep defects and optical resonances promote SERS performance in monolayer-MoS 2. • A limit of detection of 10 −12 M with an enhancement factor of 2.4 × 10 7 is realized. • Monolayer-MoS 2 /ZnO-microtube heterostructure is reusable by photodegradation. Two-dimensional transition metal dichalcogenides (2D-TMDCs) have attracted considerable attention as substrate enhancers for surface-enhanced Raman spectroscopy (SERS) due to their extraordinary chemical stability and spatial homogeneity. Unfortunately, the enhancement factors of 2D-TMDCs are limited by weak optical confinement within the atomically-thick layer. Construction of 2D-TMDCs/semiconductor-microcavity heterostructures significantly boosts the light confinement by optical resonances as well as charge-transfer (CT) resonances by energy-level alignment, by which the SERS performance is improved. Here we fabricate a monolayer-MoS 2 /ZnO-microtube (ML-MoS 2 /ZnO-MT) heterostructures, of which the ML-MoS 2 was capped onto the ZnO-MT via van der Waals forces. The deep-defect level in ZnO-MT grown by optical vapor supersaturated precipitation provide an extra CT channel transferring carriers to ML-MoS 2 for chemical enhancement. Meanwhile, the Fabry-Perot resonances supported in the ZnO-MT promote exciton, molecule and CT resonances as well as fluorescence resonance energy transfer between ML-MoS 2 and analyte molecules, by which a SERS enhancement factor of 2.4 × 10 7 with the limit of detection down to 10 −12 M for methylene blue is achieved. The ML-MoS 2 /ZnO-MT also exhibits the pronounced catalytic behavior, enabling the SERS heterostructure reusable by photodegradation of analyte molecules under 5-min ultraviolet irradiation. This work provides a new approach for highly-sensitive and recyclable plasmon-free SERS substrates for trace detection. Download: Download high-res image (69KB) Download: Download full-size image
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2019
·
IF 5.256
Jinghua Shang,Minggang Zhao,Huiyan Qu,Hui Li,Shougang Chen
We proposed a new method for regulating the electrochemical signal by using Schottky barrier . The results show that the height of Schottky barrier can be altered by adsorbing charged substance to control the enhancement and attenuation of electrochemical signal. The Schottky interface formed by MoS 2 and CQDs (carbon quantum dots) can achieve the selective detection of dopamine and overcome the distraction of ascorbic acid and uric acid with similar redox signal. The combination of Schottky barrier and electrochemical detection enhance the sensitivity and selectivity of electrochemical sensor significantly. It is a new strategy for improving electrochemical detection by introducing Schottky barrier into electrochemical process.
研究领域:
电化学
·
纳米材料
·
传感器
·
分析化学
·
材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）