RSC Advances
·
2015
·Vol. 5
·期 20
·15431-15437
·
IF 3.84
Liping Zhao,Li Qi,Hongyu Wang
Molybdenum disulfide–carbon composite (MoS2–C) sample has been prepared by a hydrothermal method using Na2MoO4, CH4N2S and glucose as starting materials and then calcined at 800 °C in an N2/H2 mixed atmosphere. X-ray diffraction and N2 adsorption–desorption tests have been employed to characterize its crystal and pore structure. SEM, TEM and TG methods have been used to investigate its morphology and the weight ratio of carbon. The MoS2–C can be used as the negative electrode for electric energy storage devices using Na+-based organic electrolytes. The charge storage mechanism at the MoS2–C negative electrode has been investigated. Electric energy storage devices using MoS2–C/graphite have been constructed and their electrochemical performance has been studied.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
功能复合材料
✓ 已验证
DOI
高影响因子
Batteries & Supercaps
·
2024
·Vol. 7
·期 8
·e202400089
·
IF 5.1
Min Qing,Zhi Hui Hao,Xiangwei Zhao,Qin Dong,Zhimin He,Wei Hong,Rong Li
Lithium-sulfur batteries (LSBs) are seriously impeded by poor reaction kinetics and the polysulfides shuttling, leading to low utilization of sulfur and poor cycling performance. Herein, amorphous MoS 2 /MoO 3 nanosheets are prepared by a one-step formamide (FA)-assisted strategy. Due to the merits of high adsorption capability and good catalytic activity of MoS 2 , relatively high electronic conductivity and strong polarity of MoO 3 , and abundant active sites of amorphous nanosheet structure, the LSBs based on amorphous MoS 2 /MoO 3 -2 nanosheets coated separator exhibit an outstanding specific capacity (1420.2 mA h g −1 at 0.1 C), excellent rate capacity (505.4 mA h g −1 at 5 C), and long cycle life (a negligible decay rate of 0.063 % per cycle at 0.5 C). This work provides an idea for designing efficient amorphous catalytic materials in LSBs. Graphical Amorphous MoS 2 /MoO 3 nanosheets with high adsorption capability, good catalytic activity, and abundant active sites are employed as high-efficient polysulfide barrier in Li−S batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
催化化学
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Yu Rong,Huan Chen,Quanling Yang
Flexible dielectric capacitor has huge application potential in modern electronics and electrical power systems. In this work, chitin-based nanocomposite films were fabricated by integrating regenerated chitin (RCH) with two-dimensional molybdenum disulfide (MoS 2 ) nanosheets using a facile, cost-effective and environmentally benign approach. To enhance both the dispersion stability and interfacial compatibility between MoS 2 and chitin, 3-aminopropyltriethoxysilane (KH550) was introduced as a coupling modifier to functionalize the MoS 2 nanosheets surface. This strategy can improve the dielectric properties of the matrix when the surface-modified chitin/MoS 2 nanosheets applied to film dielectric capacitor. The experimental results demonstrate that the obtained RCH-MoS 2 @KH550 nanocomposite films enhanced breakdown strength and dielectric constant relative to the RCH and RCH-MoS 2 composite films. Notably, the RCH-MoS 2 @KH550 composite films containing 5 wt% MoS 2 @KH550 (RCH-MoS 2 @KH550 5) exhibited a discharge energy density of 4.7 J cm −3 at a breakdown strength of 400 MV m −1 , exceeding the RCH film by over twofold and showing an approximately 17% improvement compared with the unmodified RCH-MoS 2 5 composite films. This work highlights strategies for integrating biomass and MoS 2 nanocomposite materials in dielectric energy storage applications.
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Zhengqi Peng,Yuxin Zhang,Xuanzhen Ren,Bingxue Jiang,Yisong Wang,Chenlong Guo,Chengzhi Fu,Deliang Wang,Wen-Jun Wang,Bo-Geng Li,Pingwei Liu
Functionalizing commodity polymers via 2D materials is fundamentally challenged by nanofiller aggregation during large-scale processing. Herein, a scalable approach coupling in situ polymerization and melt spinning is reported to fabricate polyethylene terephthalate (PET) textiles reinforced with defect-rich monolayer MoS2. This strategy ensures uniform dispersion and preserves pristine monolayer integrity, unlocking superior functionality even at trace loadings. Across a concentration gradient of 0.01 to 0.5 wt %, the composite fabrics exhibit a high photothermal conversion efficiency of 55.3% and a correspondingly tunable surface temperature elevation (ΔT = 16.3 to 56.6 °C). Furthermore, the internal heat generation and environmental dissipation mechanisms are quantitatively elucidated via a comprehensive thermal energy balance model. Additionally, these textiles demonstrate broad-spectrum antibacterial efficacy (>96% inhibition) at a trace loading of 0.01 wt %, achieving massive dosage reductions relative to literature benchmarks. This manufacturing route provides a robust framework for designing advanced multifunctional polymeric materials.
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Cheng Li,Jing Liu,Hua Zhang,Luwei Zou,Xilong Zhou,Jialong Li,Zhihui Chen,Xiao Wang,Weigao Xu,Zheng Peng,Xiaolong Chen,Yu Zhou
Two-dimensional photovoltaic-type devices operate by artificially stacked heterostructures with atomically thin p-n junctions or non-centrosymmetric layers, in which photogenerated carriers are separated under built-in or internal electric fields. However, their photocurrent conversion efficiency is restricted by small electric field strength and large carrier recombination, which poses a major limitation with the requirement of specific 2D materials. Herein, large-area centrosymmetric 2H-stacked bilayer MoS 2 with low defect density was synthesized by slow-kinetic chemical vapor deposition and showed a remarkable photovoltaic response (0.13 mA/W at 520 nm) with a small vertical barrier of 23.2 mV. The local energy levels and doping effects derived from Raman spectroscopy and Kelvin probe force microscopy revealed the resulting sharp slope of interfacial band bending, which explains the efficient separation of photogenerated carriers by precise work function differences. A higher asymmetric barrier of 139.6 mV resulted in enhanced photocurrents in the 405–1064 nm and achieved a maximum responsivity of 0.51 mA/W at 520 nm as well as a consistent six-fold enhancement at 638 nm (0.04 to 0.24 mA/W). Our research reveals an enhanced physical mechanism with low-defect-density centrosymmetric 2D materials as photovoltaic-type layers by tuning interfacial barriers for optoelectronic devices.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry Letters
·
2026
·Vol. 17
·期 35
·10155-10164
·
IF 4.5
Gan Jianghao,Mi Yuran,Qiao Hui,Huang Zongyu,Tang Pinghua,Qi Xiang
Conventional ethylene glycol–borax cross-linked
PVA-MoS 2 hydrogel photodetectors only rely on isolated
MoS 2 electronic conduction pathways, which trigger severe
nonradiative
recombination of photogenerated electron–hole pairs and poor
mechanical stretch resistance simultaneously. The lack of mobile ionic
channels and unstable MoS 2 conductive networks severely
limit both photoelectric conversion efficiency and long-term working
stability under dynamic deformation. To break through these dual bottlenecks,
herein we develop an ion-coordination strategy to construct a synergistic
electron–cation dual transport system, where Li + forms reversible coordination bonds with oxygen-containing groups
on the hydrogel matrix to simultaneously build two interconnected
charge transport pathways. The cation migration channels offer free-moving
Li + to neutralize photogenerated holes and weaken Coulomb
confinement for suppressed carrier recombination, while the coordination
anchors MoS 2 nanosheets firmly on polymer skeletons to
maintain intact electronic percolation networks under stretching.
We identify 4 mg mL –1 as the critical threshold
concentration to form continuous long-range cation transport channels
within the hydrogel network. Benefiting from the dual-channel synergistic
effect, the optimized ion-modified hydrogel delivers a 364% elevated
photocurrent density of 4.523 μA cm –2 at 0.6
V bias with 120 mW cm –2 illumination compared with
unmodified pristine PVA-MoS 2 . Moreover, the dual-channel
hydrogel maintains fully reversible and steady photoresponse under
200% tensile strain over 5000 s continuous illumination cycles. This
facile coordination-mediated dual-channel engineering provides a universal
strategy to synchronously optimize photoresponse and deformation tolerance,
shedding new light on high-performance, long-lifetime stretchable
wearable photodetectors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Huan Wang,Xicai Liu,Dongcheng Yang,Hailong Qiu,Fangli Jing,Hongjun Liu,Zhanggui Hu
Upconversion materials have attracted much attention because of their broad application prospects in biomedicine and energy. Although various methods have been tried in nanoparticles and nanocrystals, it is still a challenge to realize monochromatic upconversion luminescence (UCL) in traditional lanthanide-doped materials. Two-dimensional transition metal chalcogenides (2D-TMDs) are a class of excellent luminescent semiconductors, offering a promising platform due to their chemical accessibility and physical sensitivity. However, multi-lanthanide doping, typically boosting the upconversion efficiency, has not been accomplished in monolayer TMD nanosheets. In this work, an optimized liquid precursor-assisted technique is designed to synthesize monolayer MoS2 nanosheets embedded with Er/Yb and Er/Ho by surmounting the precipitation of Ln3+-doped precursors, which is confirmed by structural characterization. The monolayer MoS2 can split the 4f configuration remarkably to produce diverse energy levels due to its strong Coulomb binding and spin–orbit coupling, as well as the unique asymmetric crystal field along the [001] direction. Hence, multiband monochromatic UCL from violet to near-infrared ranges was obtained on these codoped MoS2 nanosheets. This work provides an effective way to tune the luminescence performance and wavelength of 2D-TMD nanosheets as well as a strategy for the design of UCL nanomaterials for light applications as nanophotonic devices.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 6
·2608
·
IF 4.6
Yuting Zhang,Lin Zhu,Hongqiang Xu,Qian Wu,Haojie Duan,Boshi Chen,Haiyong He
Potassium-ion batteries (PIBs) have aroused a large amount of interest recently due to the plentiful potassium resource, which may show cost benefits over lithium-ion batteries (LIBs). However, the huge volume expansion induced by the intercalation of large-sized potassium ions and the intrinsic sluggish kinetics of the anode hamper the application of PIBs. Herein, by rational design, nano-roses assembled from petals with a MoS2/monolayer carbon (C-MoS2) sandwiched structure were successfully synthesized. The interlayer distance of ultrathin C-MoS2was expanded from original MoS2of 6.2 to 9.6 Å due to the formation of the MoS2-carbon inter overlapped superstructure. This unique structure efficiently alleviates the mechanical strain, prevents the aggregation of MoS2, creates more active sites, facilitates electron transport, and enhances the specific capacity and K+diffusion kinetics. As a result, the prepared C-MoS2-1 anode delivers a high reversible specific capacity (437 mAh g−1at 0.1 A g−1) and satisfying rate performance (123 mAh g−1at 6.4 A g−1). Therefore, this work provides new insights into the design of high-performance anode materials of PIBs.Keywords:potassium-ion batteries;anode;layered 2D materials;transition-metal dichalcogenides;MoS2
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
SOLAR ENERGY
·
2021
·
IF 5.742
Fengying Wu,Hu Li,Liquan Yao,Wenwei Lin,Limei Lin,Wenjuan Chen,Dong Wei,Shenglong Liu,Shuiyuan Chen,Guilin Chen
MoS 2 thin film is deposited on ITO/CdS substrate by in-situ hydrothermal method, which is expected to be a potential absorber material for planar heterojunction solar cell due to its high absorber coefficient and carrier mobility. The CdS buffer layer provides a robust template for the quasi-epitaxial growth of MoS 2 with (0 0 2) preferred orientation by enjoying the analogical hexagonal structures and the shared sulfur atoms, resulting in a benign interface of CdS/MoS 2 . Then a device with ITO/TiO 2 /CdS/MoS 2 /Carbon-Ag structure is assembled after coating carbon-Ag electrode. The effects of the growth characteristics, morphology changes and optical properties of MoS 2 on the device performance are studied systematically. Finally, a primary efficiency of 0.12% is achieved using a P-type MoS 2 absorber with a thickness of 305 nm, exhibiting an outstanding stability. The one-dimensional solar cell capacitance simulator (SCAPS) is further used to reveal the bottleneck of device performance. After optimizing the doping density (1 × 10 15 cm −3 ) and defect density (<5 × 10 15 cm −3 ) of MoS 2 film as well as inserting a hole transport layer, the efficiency of MoS 2 planar device can be enhanced to 10.77%. This work provides an in-situ growth route for constructing a CdS/MoS 2 planar heterojunction as a potential candidate for the low-cost solar cells.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
Materials Today Chemistry
·
2022
·
IF 7.613
C. Wang,X. Zhao,S. Xie,H. Yang,L. Yang,L. Bai,D. Wei,W. Wang,X. Cao,Y. Liang,H. Chen
Aerobic oxidative desulfurization (AODS) is an emerging sustainable technology for deep desulfurization of petroleum fuels, which requires robust catalysts to boost the efficient aerobic oxidation of thiophenes. Here we report a self-assembly approach to anchor homogeneously dispersed MoS 2 nanocrystals into hierarchical hollow carbon microspheres for the efficient AODS of thiophenic sulfides. We show that MoS 2 nanocrystals are vertically embedded in carbon nanosheets with highly active edge sites exposed to the surface, which could activate the aerobic oxidation of dibenzothiophene at 100 °C, and achieves a turnover frequency of 7.53 h –1 , higher than that of the reported metallic oxide catalysts. Through a combination of experimental research and theoretical calculations, we demonstrate that the Mo edge of MoS 2 can effectively activate oxygen and strongly adsorb sulfides, which endows our catalyst with extraordinary performance. Moreover, the close coupling of MoS 2 nanocrystals in carbon ensures their chemical stability, so that the catalyst maintains unattenuated activity and unchanged chemical structure over seven repeated uses. This work provides both fundamental and practical insights in the design of efficient and stable nanocrystal-based catalysts.
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
高影响因子
Nanoscale
·
2025
·Vol. 17
·期 34
·19928-19938
·
IF 5.1
Yinghao Chen,Baihui Zhang,Shunhui Zhang,Zhikang Ao,Xiang Lan,Ruofan Yang,Jianing Xie,Wenkui Wen,Yang Du,Wentao Lv,Luyao Wang,Junjie Jin,Zhengwei Zhang,Fangping Ouyang
Two-dimensional lateral heterostructures based on transition metal dichalcogenides (TMDs) are promising for optoelectronics due to their layer thickness-dependent properties. Bilayer structures, in particular, offer advantages like enhanced electron mobility and improved stability. However, precisely controlling layer growth in these heterostructures remains a challenge. We report a simple two-step chemical vapor deposition (CVD) method for growing bilayer WS2–WSe2 and WS2–MoS2 lateral heterostructures. By strategically positioning a bilayer WS2 template to create temperature gradients, we manipulate the supersaturation of the second material, enabling precise control over the epitaxial width ratio on layer growth. Raman spectroscopy, photoluminescence (PL), and transmission electron microscopy (TEM) confirm coherent lattice continuity and chemically abrupt interfaces. The resulting WS2–WSe2 heterostructure exhibits high-performance self-powered photodetection (responsivity of 30.31 mA W−1, detectivity of 2.42 × 108 Jones and fast response time <20 ms under 638 nm laser illumination, respectively). This performance is attributed to the type-II band alignment-induced built-in electric field and the high-quality interface. This work provides novel perspectives on the growth mechanism of bilayer lateral heterostructures and highlights their potential for advanced optoelectronic applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Boyu Zhou,Bicheng Wang,Jian Huang,Mengyu Liu,Chenhao Zhang,Ying Ye,Min Liu,Yuxiang Zhang,Xuanli Zheng,Chunmiao Zhang,Yiyan Cao,Feiya Xu,Xu Li,Yaping Wu,Zhiming Wu,Junyong Kang
Two-dimensional heterojunctions with a type-II band alignment have great potential for high-performance optoelectronic devices due to their inherent carrier separation properties. Herein, we synthesized lateral and vertical MoS 2 /WS 2 heterojunctions through a two-step chemical vapor deposition method and deeply investigated the impact of the interface structures on carrier separation efficiency. The experimental results demonstrate that the structures of MoS 2 /WS 2 heterojunctions can be controlled by adjusting the Mo/S ratio. In addition, lateral heterojunctions exhibit a significantly higher carrier separation efficiency than vertical heterojunctions. Specifically, the interlayer charge transfer time in the lateral heterojunction is approximately 1.2 ps, in contrast to the value of about 4.0 ps in the vertical heterojunction. First-principles simulation reveals that the lateral heterojunction has stronger interface coupling and orbital hybridization, contributing to its faster charge transfer rate. This work demonstrates the superiority of lateral heterojunctions in carrier separation, offering valuable insights for high-performance optoelectronic devices.
研究领域:
材料科学
·
纳米电子学
·
光电子学
·
二维材料
·
异质结构
✓ 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）