Journal of Energy Storage
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2025
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IF 9.8
Xiaomin Hu,Zhe Chen,Jiayou Ji,Liang Li,Huabo Huang,Shidi Wei
Fiber-shaped supercapacitors (FSCs) serve as optimal energy storage components in wearable platforms. However, traditional fiber materials suffer from poor interfacial cross-linking, disordered microstructures, insufficient active sites, and low electrical conductivity. To overcome these challenges, this research develops Zn-MoO₃/Ti₃C₂Tₓ hybrid fibers via wet-spinning technology employing glacial acetic acid as a coagulation bath, with MoO₃ quantum dots intercalated into Ti₃C₂Tₓ interlayers and Ti₃C₂Tₓ nanosheets cross-linked by Zn 2+ . The resulting hybrid fibers feature expanded interlayer spacing, a large ion-accessible surface area, abundant porous channels, exceptional electrical conductivity, and excellent mechanical properties, delivering an exceptional volumetric capacitance of 2078.2 F cm −3 at 2 A cm −3 with 75.0 % capacitance retention at 20 A cm −3 . Furthermore, the constructed FSCs achieve a substantial energy density of 55.6 mWh cm −3 at a power density of 400 mW cm −3 , with 94.7 % capacitance retention after 5000 cycles, and successfully power an electronic timer, demonstrating their potential for wearable applications.
研究领域:
材料科学
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纳米科技
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能源存储
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柔性电子
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电化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
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IF 15.1
Zhanjun Zhang,Liyuan Wen,Siying Liao,Xingye Zeng,Rujin Zhou,Ying Zeng
The deep removal of sulfide from fuel oil is the key to the production of clean energy using Bi 2 O 3 -MoO 3 binary semiconductor materials that effectively improve the activity of the catalytic reaction. In this study, the controllable synthesis of Bi 2 O 3 -MoO 3 binary metal composite oxides with different crystalline phases (α, β, and γ) was realized via microwave hydrothermal method at the pH of 1 through the variation of the theoretical Bi/Mo molar ratio. The catalytic oxidative desulfurization (ODS) experiments revealed that γ-Bi 2 MoO 6 catalyst had higher catalytic activity than α-Bi 2 Mo 3 O 12 and β-Bi 2 Mo 2 O 9 . At 65℃, γ-Bi 2 MoO 6 catalyst exhibited the outstanding deep catalytic oxidation ability for dibenzothiophene (DBT), benzo thiophene (BT), and 4,6-dimethyldibenzothiophene (4,6-DMDBT). After 7 times of recycling, the removal rate of DBT still reached 99.11%. According to the kinetic fitting data, the catalytic oxidative desulfurization of DBT in model oil by γ-Bi 2 MoO 6 conformed to the first-order kinetic equation with the reaction activation energy of 51.05 kJ/mol. Moreover, the possible mechanisms of ODS were explored. The ultrafast oxidation was concluded to be due to peroxo species produced through the action of composite metal oxides.
研究领域:
材料科学
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催化化学
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Haoyun Zhao,Jiahui Xu,Hongsen Xie,Shasha Li,Xiaoning Wang,Feifei Wang,Davoud Dastan,Xingtai Chen,Xi-Tao Yin,Xiaoming Tan,Xiaoguang Ma
This study employed a one-step hydrothermal method to prepare pure MoS₂ samples and Pr-doped MoS₂ materials. MoO₃ and Pr-doped MoO₃-based Triethylamine gas sensors were fabricated through calcination. The elemental composition and morphology of the materials were investigated using characterization techniques including XPS, XRD, and SEM. Effective substitution of Pr³ ⁺ ions for Mo⁶⁺ lattice sites was achieved, yielding layered stacked rectangular prism nanomaterials composed of rectangular sheets of varying dimensions. At its optimal operating temperature of 250 °C, the sensor exhibited high response, rapid recovery, excellent selectivity, repeatability, long-term stability, and moisture resistance. The significantly enhanced response to Triethylamine is attributed to Pr doping, which promotes surface oxygen adsorption and increases oxygen vacancy concentration. This modification intensifies electron capture, widens the electron depletion layer, and facilitates a greater release of trapped electrons upon gas exposure. Consequently, the surface potential barrier is sharply reduced, leading to a pronounced macroscopic resistance transition. A detailed mechanistic analysis of this sensing behavior is provided.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Yan Liang,Yongqing Wang,Junjie Qian,Li Liu,Yulong Yang,Mingmin Bai,Haotian Zheng
Silicon carbide (SiC) ceramic membrane supports, as critical components of ceramic membrane filters, must exhibit outstanding performance in mechanical properties, porosity, and chemical stability. In this study, MoO₃ was employed as a sintering aid, with SiC and α-Al₂O₃ serving as raw materials and walnut shell powder as a pore-forming agent. The effects of varying sintering temperatures (1250–1400°C) and MoO₃ contents on the properties of SiC porous ceramic membrane supports were systematically investigated. Special emphasis was placed on elucidating the mechanisms by which MoO₃ addition influences porosity, flexural strength, pore size distribution, and chemical stability. Experimental results demonstrate that the introduction of MoO₃ facilitates low-temperature sintering of SiC supports through a dissolution-precipitation mechanism. This process promotes the formation of mullite whiskers that reinforce interparticle necking regions while enhancing the uniformity of neck connections. Optimal performance was achieved at 1350°C with 8 wt% MoO₃ addition, yielding a bending strength of 37.01 ± 1.72 MPa, average pore size of 1.735 μm, most probable pore size of 1.7 μm, open porosity of 39.12 %, and exceptional corrosion resistance. This work establishes both theoretical foundations and practical strategies for low-temperature fabrication of high-performance SiC porous ceramics, while expanding the application potential of molybdenum-based sintering aids in structure-function integrated ceramic materials.
研究领域:
材料科学
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陶瓷工程
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2020
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IF 16.683
Zhao Gao,Hanpei Yang,Jingwei Li,Li Kang,Lina Wang,Junming Wu,Song Guo
Construction of semiconductor-based membranes accommodates new routes for photothermal conversion and in-situ decomposing of pollutants in solar light-driven evaporation. In this work, a novel photocatalyst composed of MoO 3- x , BiOCl, and carbon nanotubes was surficial deposited on cellulose acetate membrane. High capillary pressure (∼600 kPa) guaranteed an effective capillary rise of water from hydrophilic membrane matrix. The water was extruded into ultra-fine droplets with a saturation vapor pressure as high as ∼1.75 × 10 5 Pa and a heat flux as much as ∼2.11 × 10 −3 W mm −2 . Moreover, the top-surficial film can harvest sufficient solar photons to generate charge carries, and the surface temperature of membrane can quickly increase to higher than 50 °C by thermalization through carriers relaxation, transference, and recombination on specific sites. Simultaneously, pollutants in water are efficiently decomposed by effectively separated charge carriers on designed spots. Synergistically, a steam generation rate of ∼7.75 kg m −2 h −1 was acquired and an almost complete removal of RhB and toluene was achieved.
研究领域:
环境科学
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材料科学
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化学工程
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DOI
高影响因子
DALTON TRANSACTIONS
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2026
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IF 3.3
Chang-Yuan He,Kun Hu,Jing-Yang Zhou,Long Wu,Jian-Han Zhang
Two new Mo-Te-O compounds, (NH₄)₂MgMo₄Te₂O₁₈ and β-MoTe₂O₇, have been synthesized and structurally characterized as frameworks constructed from distorted MoO₆ octahedra and TeO₃ trigonal pyramids with stereochemically active lone pairs.The two phases feature distinct Mo-O-Te connectivities and dimensionalities, leading to different degrees of optical anisotropy. Polarized optical microscopy measurements reveal that both compounds exhibit moderate birefringence, which is further rationalized by density functional theory calculations.The incorporation of Mg²⁺ in (NH₄)₂MgMo₄Te₂O₁₈ results in a more structurally elaborate framework, and this compound shows a black crystal surface with a white interior, indicative of surface-related electronic effects. Combined experimental and theoretical results highlight the role of cooperative MoO₆-TeO₃distortions and framework connectivity in governing optical anisotropy in Mo-Te-O oxides.
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Jianxing Liu,Lin Nie,Jiamu Liu,Fengling Zhang,Yu Zhang,Mao Liu
Efficient photocatalytic nitrogen fixation critically depends on rapid charge carrier transport and effective surface reactions. In this study, a Bi 2 MoO 6 -based photocatalyst was successfully developed through surface modification with varying concentrations of ascorbic acid. After modification by ascorbic acid, defects were introduced on the surface of Bi 2 MoO 6 catalyst, which changed the octahedral coordination environment of MoO 6 , resulting in structural adjustment, reduced band gap, increased conduction potential, and reduced surface work function. These changes facilitated accelerated photo-induced charge migration and separation of Bi 2 MoO 6 . Consequently, the efficiency of photogenerated charge carrier separation was significantly enhanced, resulting in improved photocatalytic performance. Notably, the optimized BMO-1 catalyst exhibited a maximum NH 3 production rate of 240.5 μmol·g −1 ·h −1 without the use of sacrificial agents under visible light irradiation, which is 4.5 times higher than that of pristine Bi 2 MoO 6 . This work demonstrates a simple, effective, and controllable strategy for catalyst modification to boost photocatalytic nitrogen fixation performance.
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APPLIED SURFACE SCIENCE
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2019
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IF 5.155
Keyu Tao,Huamei Dan,Yang Hai,Li Liu,Yun Gong
Developing cost-effective and high-performance bifunctional catalysts for overall water splitting is of enormous importance for the realization of sustainable clean-energy technologies. Herein, the unique Mo O linkage enhanced CoP nanosheets supported on Ni foam (NF) and the systematical investigation of their performance for overall water splitting as a function of the composition are reported. The fine-tuning of Co/Mo ratios in the Co Mo precursors realized by controlling the dosages of capping agent (urea), which enables CoO to grow along its (111) crystalline orientation and retard the incorporation of Mo O. As a result, the optimized CoP/MOL/NF-10 exhibits the best hydrogen evolution reaction (HER) activity with low overpotentials (η) of 87 mV at 10 mA cm −2 . DFT calculation confirmed the O-site on surface is more advantageous to the adsorption of H, when CoP with proper mounts of Mo O linkages and giving rise to a decent ΔG H value. When the CoP/MOL/NF-10 employed as anode for OER , the current density of 20 mA cm −2 is achieved at a low overpotential of 270 mV. In the end, a symmetric electrolyzer built by CoP/MOL/NF-10 deliveries a current density of 10 mA cm −2 at a cell voltage of 1.52 V with excellent stability.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Rui Liu,Yunpei Cui,Na Chai,Lei Yang,Xiufeng Zhang,Qianqian Nie,Hesheng Yu
This study developed an amorphous MoO 2 –C hollow spherical cocatalyst (MOC) derived from Mo-polydopamine, and hybridized it with ZnIn 2 S 4 to form ZnIn 2 S 4 /MoO 2 –C (ZMC) composites. Various characterizations were conducted to analyze the crystal structure, morphology, and photoelectrical properties of the ZMC composites. The prepared ZMC composites were evaluated for photocatalytic hydrogen evolution under simulated sunlight. Furthermore, nanorod-like MoO 2 –C cocatalyst (A-MOC) and ZnIn 2 S 4 /A-MOC (A-ZMC) composites were prepared to investigate the impact of carbon source on catalytic activity. Results show that the addition of MOC cocatalyst significantly enhances the hydrogen evolution rate of ZnIn 2 S 4 from 0.54 to 20.61 mmol g −1 h −1 , and increases the apparent quantum efficiency at 420 nm from 1.66 % to 8.63 %. The hydrogen evolution rate of the optimal ZMC is 1.26 times that of the optimal A-ZMC (16.28 mmol g −1 h −1 ). The crystal structure and morphology of MoO 2 –C determined by carbon source affect the photocatalytic hydrogen evolution performance of ZnIn 2 S 4 . Insight mechanism analysis indicates that the formation of a Schottky junction facilitates the separation of photogenerated electron-hole pairs, thereby enhancing the photocatalytic hydrogen evolution activity. Finally, the ZMC composite catalyst retains 89 % of its original hydrogen evolution performance after 5 cycles over 15 h, demonstrating good stability and promising prospects for real-world applications.
研究领域:
材料科学
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催化
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纳米技术
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能量转换
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环境科学
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DOI
高影响因子
ChemistrySelect
·
2024
·Vol. 9
·期 13
·e202303633
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IF 1.9
Mingyan Chen,Wentao Wang,Xinkai Feng,Dehua Zhang,Yao Zhang,Yucheng Liu
Graphical This work describes the application of a highly efficient catalyst (NH 2 -UiO-66-Mo) to the catalytic oxidation desulfurization process. NH 2 -UiO-66-Mo can greatly improve the efficiency of oxidative desulfurization The optimum operating conditions of NH 2 -UiO-66-Mo are investigated through experiments, which prove the excellent performance of the catalyst, and the reaction mechanism is further studied through a series of characterizations. A highly efficient oxidative desulfurization composite catalyst NH 2 -Uio-66-Mo has been prepared and applied in the catalytic oxidative desulfurization. It was elucidated that Mo 6+ could increase the oxygen vacancies and active sites on the catalyst and increase the pore size of UiO-66. Meanwhile, the removal rate of dibenzothiophene (DBT) reached 99.2 % after 60 min under optimal conditions and remained above 90 % after 5 cycles, showing the composite catalyst's remarkable catalytic performance and satisfactory reusability NH 2 -UiO-66-Mo. In addition, kinetic studies revealed that the desulfurization process can present a pseudo-first-order kinetic process. The apparent activation energy was 10.6 kJ/mol. Finally, in combination with oxides, possible oxidation pathways were identified.
研究领域:
化学工程
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材料科学
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催化反应
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产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
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2026
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IF 6.2
Yiming Chen,Zhan Zhao,Yuanyuan Liu,Kelei Huang,Xiangchao Meng
Adopting reverse osmosis (RO) for seawater desalinating is well-established, suitable for coupling with alkaline water electrolysis (ALK) systems. The progressive accumulation of residual ions during the reaction, along with the limited energy efficiency of industrial ALK cells, drives the requirement to explore scalable strategies for engineering highly active catalysts. Herein, a facile water bath followed by rapid Joule heating method has been reported for scalable fabrication of large-scale electrodes. Typically, a cathode of NiMoO 4 /MoO 2 with a size of 10 cm × 10 cm were grown on nickel mesh (NM) substrate.The NiMoO 4 /MoO 2 achieved an overpotential of 345.2/349.2 mV at 500 mA cm -2 in alkaline freshwater/seawater, with stability at 1 A cm -2 for 1000 h. Further experiments in ALK device adopting quasi-industrial condition (6 M KOH RO seawater, 60°C) showed that NiMoO 4 /MoO 2 ||NM delivered a current density of 500 mA cm -2 with a reduction of the required voltage by 1 V in comparison with NM||NM, displaying impressive Faraday efficiency of 90.2% and electricity consumption of 4.48 kWh/Nm 3 H 2 , demonstrating the potential for industrial applications. The characterization and experimental results verified the vital role of Joule heating and the optimised electronic structure in NiMoO 4 /MoO 2 heterostructure, resulting in efficient hydrogen evolution reaction (HER).
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
·
IF 4.4
Danyang Liu,Miaomiao Jing,Qiang Zhao,Junli Wang,Zhifang Jia,Zuopeng Li,Kewei Wang,Yong Guo,Yuanzhen Ke
A novel S-scheme heterojunction N,S-NiFe-LDH/N-Bi₂MoO₆ was successfully constructed. • 5 wt% N,S-NiFe-LDH/N-Bi₂MoO₆ showed the highest activity, degrading 86.3% of TC in 100 min under visible light. • Element doping and interface engineering synergistically enhanced visible-light absorption and charge separation. • ·OH and ·O₂ − were the dominant active species responsible for TC degradation. A step-scheme (S-scheme) heterojunction photocatalyst was constructed via a hydrothermal method, consisting of N,S co-doped NiFe layered double hydroxide (N,S-NiFe-LDH) and nitrogen-doped bismuth molybdate (N-Bi₂MoO₆). The morphology, crystal structure, optical properties, elemental valence states, and charge separation/transport performance of the composite catalyst were systematically investigated using various characterization techniques, including SEM, TEM, HRTEM, XRD, UV–Vis DRS, XPS, and EIS. Its photocatalytic activity was evaluated through tetracycline (TC) degradation experiments under visible light irradiation, and the catalytic mechanism was elucidated by EPR radical detection. The results showed that the incorporation of N,S-NiFe-LDH enhanced the photocatalytic performance of the composite catalyst. Among the tested samples, the 5 wt% N,S-NiFe-LDH/N-Bi₂MoO₆ composite exhibited the highest degradation efficiency, achieving 86.3% TC removal within 100 min. The synergistic interaction between N,S-NiFe-LDH and N-Bi₂MoO₆ promoted the separation efficiency of electrons and holes, thereby significantly enhancing the photocatalytic activity.
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高影响因子
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