INORGANIC CHEMISTRY
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2023
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IF 4.6
Huifen Peng,Shuangbin Han,Jiamin Zhao,Olga Klimova-Korsmik,Oleg Viktorovich Tolochko,Mirtemir Shodievich Kurbanov,Chengwei Zhang,Puguang Ji,Gong kai Wang
Two-dimensional (2D) layered MoSe2 has been demonstrated to be a promising electrode material for new energy storage systems. However, its nature of poor conductivity and the undesirable interlayer spacing hinder its further application. In this paper, a general and simple plasma-enhanced chemical vapor deposition method is proposed to produce 2D heterolayer-structured MoSe2-carbon (MoSe2/C) with carbon atoms inserted in the MoSe2 layers. After morphology optimization, when applying flat-type MoSe2/C-200 nanosheets with an enlarged interlayer spacing of 0.79 nm as the anode and activated carbon as the cathode, the assembled sodium-ion hybrid capacitors can reach a maximum energy/power density of 116.5 W h kg–1/107.5 W kg–1 and exhibit superior cycling durability (91.3% capacitance retention after 4000 cycles at 1 A g–1). The good electrochemical property can be ascribed to the enlarged interlayer spacing that can offer fast diffusion channels for Na ions, and the carbon layer sandwiched in the MoSe2 layer can not only enhance the electron transfer, accelerating the reaction kinetics, but also alleviate the volume change of MoSe2, ensuring the good stability of the electrode. The proposed approach can also be extended to other 2D transition metal chalcogenide (TMC) materials for constructing the TMC/C heterostructures for the application in energy storage systems.
研究领域:
材料科学
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能量存储
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电化学
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纳米材料
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2025
·Vol. 49
·期 20
·8512-8519
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IF 2.5
Meng Li,Qian Cai,Wenting Hong,Xu He,Wei Liu
Photodetectors based on two-dimensional (2D) materials are revolutionizing optoelectronics by enabling high sensitivity, ultrafast response, and broadband detection. However, standalone 2D materials often suffer from high dark current, slow response times, and limited light absorption. Here, we demonstrate a high-performance photodetector based on a Sb2Te3/MoSe2 van der Waals (vdW) heterojunction, leveraging the topologically protected surface states of Sb2Te3 and the strong light absorption of MoSe2. The built-in electric field at the heterojunction interface enhances charge separation, suppresses recombination, and significantly reduces dark current. As a result, the device exhibits a high detectivity of 5.14 × 1012 Jones, an exceptional photoresponsivity of 178 A W−1, and fast response times of 110 μs (rise) and 230 μs (fall) under 532 nm illumination at 1 V bias. Additionally, the heterojunction enables broadband photodetection spanning 532 to 1550 nm, making it suitable for optical communication and sensing applications. This work provides new insights into the integration of topological insulators with transition metal dichalcogenides (TMDs) to achieve next-generation optoelectronic devices with superior performance.
研究领域:
纳米光电子学
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凝聚态物理
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材料科学
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半导体器件
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光学传感
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DOI
高影响因子
Inorganic Chemistry Frontiers
·
2018
·Vol. 5
·期 11
·2978-2984
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IF 5.106
Yuanmeng Zhao,Chenlu Yang,Guixiang Mao,Jun Su,Gongzhen Cheng,Wei Luo
The development of highly efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) under alkaline media is of great importance due to its sluggish water dissociation kinetics. In this work, ultrafine Rh nanoparticle decorated MoSe2 nanoflowers have been synthesized through a colloidal synthetic method. When further used as electrocatalysts for HER in alkaline media, the experimental results demonstrate that 8.2% Rh–MoSe2 nanoflowers exhibit excellent catalytic activity with a small overpotential of 73 mV to obtain the current density of 10 mA cm−2 with good stability, which is much higher than that of MoSe2 (264 mV) and even close to 20% commercial Pt/C (48 mV). The improved HER performance of Rh–MoSe2 nanoflowers may be ascribed to the synergistic catalytic effects between Rh and MoSe2 and strong electronic interactions among Rh, Mo and Se at the atomic level.
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
·
2019
·Vol. 7
·期 7
·3317-3326
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IF 10.733
Menglei Yuan,Sobia Dipazir,Meng Wang,Yu Sun,Denglei Gao,Yiling Bai,Min Zhang,Peilong Lu,Hongyan He,Xiangyang Zhu,Shuwei Li,Zhanjun Liu,Zhaopeng Luo,Guangjin Zhang
The oxygen evolution reaction (OER) is a half reaction of electrochemical water splitting that suffers from a kinetically sluggish four-electron process, and it is regarded as the efficiency-limiting step in water splitting. Herein, heterostructures of CoSe (cobalt selenide) nanoparticles and MoSe2 (molybdenum selenide) nanosheets (CoSe/MoSe2 hybrids) were fabricated through a non-metal-induced growth method. Due to the increase in the effective specific area and the electron transfer ability caused by the formation of the heterogeneous interface, the obtained CoSe/MoSe2 hybrids show superior OER performance (η = 262 mV at 10 mA cm−2) and long-term stability (20 h for continuous testing) as compared to pure CoSe, MoSe2 and physically mixed CoSe and MoSe2. Schematic energy band diagrams derived from ultraviolet photoelectron spectroscopy results further confirmed the electronic modulation between CoSe and MoSe2 and revealed that the d-band center of CoSe/MoSe2 hybrids moved closer to the Fermi level, giving rise to high charge carrier density and low intermediate adsorption energy as compared to CoSe and MoSe2. This work provides some insight into the design and synthesis of heterostructured nanomaterials from the MOF precursors.
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 NANOBIOTECHNOLOGY
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2022
·Vol. 20
·期 1
·1-18
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IF 9.429
Xie Pei,Zhang Liying,Shen Hui,Wu Hang,Zhao Jiulong,Wang Shige,Hu Lianghao
Exogenous antioxidant materials mimicking endogenous antioxidant systems are commonly used for the treatment of oxidative stress-induced injuries. Thus, artificial enzymes have emerged as promising candidates for balancing and treating the dysregulation of redox homeostasis in vivo. Herein, a one-pot hydrothermal strategy for the facile preparation of MoSe 2 -polyvinylpyrrolidone (PVP) nanoparticles (NPs) is reported. The synthesized NPs were biodegradable due to their exposure to oxygen and exhibited high stability. Moreover, they effectively mimicked various naturally occurring enzymes (including catalase, superoxide dismutase, peroxidase, and glutathione peroxidase) and scavenged free radicals, such as 3-ethylbenzothiazoline-6-sulfonic acid, ·OH, ·O 2− , and 1,1-diphenyl-2-picrylhydrazyl radical. Further apoptosis detection studies revealed that MoSe 2 -PVP NPs significantly increased the cell survival probability in H 2 O 2 in a concentration-dependent manner. The cytoprotective effect of MoSe 2 -PVP NPs was explored for an animal model of acute pancreatitis, which confirmed its remarkable therapeutic efficacy. Owing to the biodegradable and biocompatible nature of MoSe 2 -PVP NPs, the findings of this work can stimulate the development of other artificial nanoenzymes for antioxidant therapies. Graphical Abstract
研究领域:
纳米技术
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生物医学工程
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药学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Small
·
2024
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IF 13
Anshuo Li,Liuyang Xu,Yanmin Jia,Meng Yuan,Jinhui Zhang,Hengrui Liu,Shiqi Liu,Yuhui Zhu,Xindi Wei,Wenkang Tu,Yuchu He,Song Ni,Xinquan Jiang,Xuwu Zhang
Photodynamic therapy (PDT) is long-standing suffered from elevated tumor interstitial fluid pressure (TIFP) and prevalent hypoxic microenvironment within the solid malignancies. Herein, sound-activated flexocatalysis is developed to overcome the dilemma of PDT through both enhancing tumor penetration of photosensitizers by reducing TIFP and establishing an oxygen-rich microenvironment. In detail, a Schottky junction is constructed by flexocatalyst MoSe 2 nanoflowers and Pt. Subsequently, the Schottky junction is loaded with the photosensitizer indocyanine green (ICG) and encapsulated within tumor cytomembrane to constitute a bionic-flexocatalytic nanomedicine (MPI@M). After targeting the tumor, MPI@M orchestrates flexocatalytic water splitting in tumor interstitial fluid under acoustic stimulation to lower TIFP, which boosted the tumor penetration of ICG. Concurrently, the oxygen released from the flexocatalytic water splitting overcomes the limitation of hypoxia against PDT. Furthermore, superfluous singlet oxygen generated by PDT can induce mitochondrial dysfunction for further tumor cell apoptosis. After 60 min of flexocatalysis, both the 30% decrease of TIFP and the relieved tumor hypoxia are observed, significantly promoting the therapeutic effect of PDT. Consequently, MoSe 2 /Pt junction nanoflowers, with the excellent flexocatalytic performance, hold significant potential for future applications in biocatalytic cancer therapies.
研究领域:
肿瘤学
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生物医学工程
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纳米医学
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产品关联
DOI
PubMed
高影响因子
Sustainable Energy & Fuels
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2023
·Vol. 8
·期 3
·604-609
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IF 5.6
Jinhui Zhang,Chuanhe Ma,Haixuan Gao,Jinchun Jiang,Hailong Wang
An over-thick MoSe2 layer and numerous voids at the absorbing layer inside and backside lead to a relatively low Jsc and PCE of CZTSSe solar cells. In previous studies, MoO2 and MoO3 sacrificial layers have been commonly used to eliminate those voids and reduce the thickness of MoSe2 layers. However, there is still no clarity about which one is more effective. In this work, we prepared MoO2 and MoO3 sacrificial layers on the surface of Mo-coated SLG substrates by air annealing and ammonia (NH3·H2O) etching, respectively. J–V testing shows that both MoO2 and MoO3 can effectively improve the Jsc and PCE of CZTSSe solar cells, wherein MoO3 is more effective. Comparative analysis shows that the electrical mechanism of Jsc and PCE improvement lies in the significant reduction of device series resistance (Rs). SEM images and XRD pattern results indicate that the reason for Rs decreasing is void elimination and MoSe2 layer thickness reduction from 600 nm to 270 nm after applying MoO3. With the aid of the MoO3 sacrificial layer, the PCE of the CZTSSe device increases from 7.51% to 9.58% (total area 0.21 cm2) without the MgF2 anti-reflection layer.
研究领域:
材料科学
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太阳能
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光伏技术
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DOI
高影响因子
Chemosensors
·
2025
·Vol. 13
·期 3
·81
·
IF 3.7
Peizheng Shi,Ningbin Zhao,Zhuang Sun,Kaiqiang Sun,Wubo Chu,Hsu-Sheng Tsai,Lidong Wu,Tao Cai,Yuezhong Wang,Nan Jiang,Chen Ye,Li Fu,Lixin Xu,Cheng-Te Lin
Uric acid (UA), the final metabolic product of purines, plays a crucial role in human health monitoring. The UA concentration in biological fluids serves as a diagnostic marker for various disorders, particularly kidney diseases, and represents a potential therapeutic target. Given the growing emphasis on preventive healthcare, developing methods for real-time UA detection has become increasingly significant. Here, we demonstrate the synthesis of novel tumbleweed-like molybdenum diselenide (MoSe2) nanostructures through a single-step hydrothermal process. The synthesized MoSe2was subsequently hybridized with reduced graphene oxide (rGO) to construct electrodes for UA sensing. Differential pulse voltammetry (DPV) measurements revealed that the MoSe2/rGO-modified glassy carbon electrode (GCE) exhibited excellent UA detection capabilities under optimized conditions. The sensor demonstrated a remarkably low limit of detection (LOD) of 28.4 nM and maintained linearity across a wide concentration range (40 nM to 200 μM). Notably, the sensor showed high selectivity for UA detection even in the presence of common interfering species, including citric acid (CA), dopamine (DA), ascorbic acid (AA), cysteine (Cys), glucose (Glu), oxalic acid (OA), sodium ions (Na+), and potassium ions (K+). The developed sensor displayed outstanding selectivity, stability, and reproducibility characteristics. This synthetic approach offers promising opportunities for developing MoSe2-based electrochemical sensing platforms suitable for diverse bioanalytical applications.
研究领域:
生物医学工程
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分析化学
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DOI
高影响因子
NANOTECHNOLOGY
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2023
·Vol. 34
·期 40
·405704
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IF 3.5
Gangshuo Liu,Chao Yan,Xinqi Sui,Dengfeng Kuang
It is important to clarify the role and possible applicability of partially disordered structures in photonics, but there is still a lack of an effective method for it. Here, we investigate partially disordered MoSe2 nanospheres experimentally regarding their morphology and absorption spectrum in broadband wavelengths and propose an optical simulation with three-dimensional finite-difference time-domain method to explain the crucial impacts of morphological parameters on optical responses. The experimental spectral absorbance of MoSe2 nanospheres reveals a strong light-absorbing character in broadband wavelengths. The simulated spectral curves coincide with the experimental results by adjusting morphological parameters, i.e. the statistics of size and the number of layer, and the linear correlation coefficient between the simulated and experimental spectral curves is up to 0.94. The disorder plays a key role in the high light-absorption feature, and the feature originates from anti-reflection, defective state absorption, multiple light scattering and coherent diffusion effects. The results not only deepen the understanding of disordered photonics in semiconductor nanostructures, but also provide a simulation approach to optimize experimental designs.
研究领域:
材料科学
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光学
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纳米技术
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DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2026
·
IF 7.6
Haoyu Deng,Tongtong Yu,Xin Wang,Xinjian He,Yuanhao Xu,Donghua Xu,Chuanshuai Feng,Changhe Du,Daoai Wang
The rapid development of micro/nano-electromechanical systems (M/NEMS) under extreme contact conditions require atomic-scale lubricants with ultrathin thickness (<1 nm), ultralow friction (coefficient of friction<0.01), and high wear resistance. Two-dimensional (2D) transition metal dichalcogenides (TMDs), such as MoSe 2 , are promising candidates. However, the role of substrates in governing the friction and wear behavior of monolayer TMDs remains unclear. Here, high-quality monolayer MoSe 2 films with a thickness of ~0.7 nm were synthesized by chemical vapor deposition on five representative substrates, including SiO 2 /Si, Si, quartz, a-plane sapphire, and c-plane sapphire. The study systematically investigated the role of interfacial bonding strength in regulating tribological properties. Significantly, MoSe 2 on quartz exhibited ultralow friction (COF=0.009) and exceptional wear resistance (40,000 cycles@3.02 GPa), significantly outperforming other substrates. Conversely, MoSe 2 on Al 2 O 3 showed inferior performance (COF=0.015; <5,000 cycles@3.02 GPa), which is attributed to a MoO 3 -related interfacial layer that reduces bonding strength. Density functional theory (DFT) simulations revealed a positive correlation between tribological performance and interfacial interaction strength. Stronger interfacial interactions provide enhanced anchoring of the monolayer, which can suppress out-of-plane deformation and delamination, thereby reducing energy dissipation. This work identifies interfacial bonding strength as the key factor governing ultrathin 2D material tribology, providing essential guidelines for designing durable, low-friction lubrication systems for future M/NEMS.
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DOI
高影响因子
Surfaces and Interfaces
·
2026
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IF 6
Jiejing Yang,Ruxue Zhang,Nan Lv,Shirui Zhang,Cheng Liu,Yuteng Zhang,Haifeng Zhang
Piezoelectric catalysis has emerged as a promising strategy for efficient and sustainable environmental remediation. Here, FeSe 2 /MoSe 2 heterojunction nanocomposites are developed with significantly enhanced piezoelectric catalytic performance. The formation of a Z-scheme FeSe 2 /MoSe 2 heterojunction markedly boosts the degradation of Rhodamine B (RhB), enabling complete removal within 8 min. The corresponding kinetic rate constant reaches 148.5 L·mg⁻¹·min⁻¹, which is 14,850- and 565-fold higher than those of pristine FeSe 2 and MoSe 2 , respectively. This remarkable improvement arises from the synergistic coupling of the heterointerface and strain-induced piezoelectric polarization, which generates an internal electric field that promotes efficient charge separation, suppresses carrier recombination, and preserves strong redox activity. This work highlights the potential of piezoelectric heterostructures as a general strategy for mechanically driven catalytic processes. Download: Download high-res image (347KB) Download: Download full-size image
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Fei Wang,Xinyan Xiao,Yanfang Yao,Chen Ling
The construction of Z-scheme heterojunction is an effective strategy to improve photocatalytic performance. First principles density functional theory (DFT) calculates that Bi 3 O 4 Cl and MoSe 2 have crossed band structures. In this work, we successfully constructed MoSe 2 /Bi 3 O 4 Cl 2D/3D Z-scheme heterojunction by solvothermal method. Characterization by DRS, EIS and PL shows that MoSe 2 /Bi 3 O 4 Cl has stronger light absorption, better electrochemical properties, and higher carrier separation efficiency, which indicates the successful construction of heterojunctions. The obtained composites were further used to degrade the dye RhB in wastewater with excellent photocatalytic activity. The photocatalytic apparent rate constant of 1.0 % MoSe 2 /Bi 3 O 4 Cl is 7.82 times that of pure Bi 3 O 4 Cl. In addition, the catalyst has good cyclic stability, and the activity does not attenuate significantly after five cycles. Finally, according to the reaction mechanism of Z-scheme heterojunction, a detailed electron transfer path is proposed. This research provides a new inspiration for designing complex catalyst heterojunctions for the treatment of dyes in wastewater.
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高影响因子
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