ECS Electrochemistry Letters
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2015
·Vol. 4
·期 3
·A29
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IF 1.789
VanTu Nguyen,YueLi Liu,Xue Yang,Wen Chen
The precursor of Fe2(MoO4)3 has been synthesized by precipitation method, which is used to prepare high-capacity cathode material Fe2(MoO4)3/nanosilver composite for sodium-ion batteries. The silver modifying does not affect the monoclinic structure of Fe2(MoO4)3 but improves its kinetics in terms of discharge capacity and rate capability. AC impedance measurements show that the Ag modification decreases the charge transfer resistance of Fe2(MoO4)3/nanosilver composite cathodes. Electrochemical studies confirm that the Fe2(MoO4)3/nanosilver composite exhibits capacity of 90 mAhg−1, and retains 84.5 % of capacity even after 50 cycles.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
ECS Journal of Solid State Science and Technology
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2015
·Vol. 4
·期 5
·M25
·
IF 1.558
Vantu Nguyen,Yueli Liu,Yang Li,Shah Abdul Hakim,Xue Yang,Wen Chen
Fe2(MoO4)3/carbon nanotubes (CNTs) nanocomposite was prepared by a precipitation method and used as a cathode for sodium-ion batteries (SIBs). The field emission scanning electron microscopy (FESEM) test showed that the CNTs and Fe2(MoO4)3 nanosheets formed an interpenetrating network structure. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis confirmed that the Fe2(MoO4)3 was a monoclinic crystal structure and mixed with element states in the nanocomposite. The electrochemical properties of the Fe2(MoO4)3/CNTs nanocomposite were studies by electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge measurement. The results indicated that Fe2(MoO4)3/CNTs nanocomposite had high specific capacity and good cycling stability as a cathode material for SIBs. As the charge/discharge curent density is at 1 C, the initial specific capacity of Fe2(MoO4)3/CNTs nanocomposite is 85 mAhg−1, and it remains 79.81 mAhg−1 after 50 cycles.
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
SENSORS AND ACTUATORS B-CHEMICAL
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2025
·
IF 7.7
Huai Wang,Zhenyu Yuan,Jingfeng Li,Renze Zhang,Fanli Meng
Xylene is not only a carcinogenic gas, but also one of indoor pollution gases. Therefore, it is indispensable to develop a xylene gas sensor with fast response and high sensitivity. In this paper, 5 wt%rGO-Fe 2 (MoO 4 ) 3 -1 wt%Pt gas sensitive material was prepared by integrating the excellent properties of reduced graphene oxide (rGO) and noble metal Pt. In addition, the microstructure, elemental composition, phase and crystal structure of 5 wt%rGO-Fe 2 (MoO 4 ) 3 -1 wt%Pt nanocomposites were characterized. The nanostructure of Pt-modified Fe 2 (MoO 4 ) 3 nano-hollow spheres compounded on rGO was successfully prepared. The gas sensitive experiment results showed that 5 wt%rGO-Fe 2 (MoO 4 ) 3 -1 wt%Pt had better gas sensitive performance than Fe 2 (MoO 4 ) 3 (FMO), FMO-1 wt%Pt and 5 wt%rGO-FMO. At the optimum working temperature (175℃), the 5 wt%rGO-FMO-1 wt%Pt sensor had a maximum response value to xylene, and could detect 500 ppb xylene. In addition, the 5 wt%rGO-FMO-1 wt%Pt nanocomposite showed a rapid response and recovery process to xylene. Moreover, the gas sensitivity mechanism and enhancement of gas sensitivity of 5 wt%rGO-FMO-1 wt%Pt to xylene were systematically analyzed. The 5 wt%rGO-FMO-1 wt%Pt gas sensor prepared provided a new reference for the detection of xylene.
研究领域:
材料科学
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环境科学
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传感器技术
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Nan Wang,Hancheng Yuan,Yanna NuLi,Jun Yang,Jiulin Wang
The development of rechargeable Mg-based batteries with a high energy density is restricted by the high-voltage cathodes and the parasitic side reactions between the battery components and electrolytes operating at relatively high potentials. Here, we develop a hybrid Mg2+/Li+ cell using a monoclinic or orthorhombic Fe2(MoO4)3 cathode, a Mg anode, and a simple (PhMgCl)2–AlCl3 + LiCl electrolyte. Hastelloy-C alloy is proposed as a current collector of high-voltage cathode for the hybrid Mg2+/Li+ battery within a Swagelok-type cell. The application of the Hastelloy-C alloy current collector breaks the crucial bottleneck of incompatibility between the currently available current collectors and electrolytes. The hybrid cell features a low voltage polarization between the discharge and charge profiles, which is in favor of practical applications. On the other hand, because all Li+ ions are supplied by the electrolyte in a hybrid Mg2+/Li+ battery, a high Li+ concentration is required to operate at high capacities for the hybrid battery. We further show the first-hand evidence about the compensation of Li+ ions by simply soaking the cathode in the hybrid electrolyte. The prelithiation of Li+ ions into monoclinic Fe2(MoO4)3 significantly enhances the cycling stability and reversibility.
研究领域:
材料科学
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电化学
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能源存储
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无机化学
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电池技术
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Xinjia Zhang,Jingmin Ma,Jian Hao,Tenghao Ma,Jing Wang,Shimiao Peng
In this study, La–Fe2(MoO4)3@CoMoO4 composite core–shell structured electrode materials were successfully prepared by the hydrothermal method. The research results show that the introduction of lanthanum not only enhances the conductivity and charge transfer rate of Fe2(MoO4)3@CoMoO4, but also improves the electrolyte permeability and ion transport capacity by introducing oxygen vacancies and lattice defects. In addition, the core–shell structure of nanorods combined with nanosheets increases the specific surface area of the material, enhances the structural stability of the material, provides more transmission channels for ions, and improves the electrochemical reaction rate and cycle stability of the material. In the three-electrode test system, the specific capacitance of La–Fe2(MoO4)3@CoMoO4 nanomaterials only slightly decreased from 1985 F g−1 to 1963 F g−1 after 10 000 charge–discharge cycles at a current density of 5 A g−1, with a capacitance retention rate of 98.8%, demonstrating excellent cycle life. Moreover, the composite material of molybdenum dioxide (MoO2) and carbon nanotubes (CNTs) combines the excellent conductivity and ion diffusion performance of both, providing strong support for efficient energy storage. The asymmetric supercapacitor composed of La–Fe2(MoO4)3@CoMoO4 and CNTs/MnO2 anode exhibits excellent comprehensive performance, with an energy density as high as 50.2 Wh kg−1 and a power density reaching 12 000 W kg−1, providing an effective strategy for the design and development of high-performance supercapacitors.
研究领域:
材料科学
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电化学
·
能量存储
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纳米材料
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超级电容器
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产品关联
DOI
高影响因子
Desalination and Water Treatment
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2016
·
IF 1.272
Yong-Sheng Lu,Zhan Wang,Yun-Feng Xu,Qiang Liu,Guang-Ren Qian
Iron molybdate (Fe2(MoO4)3) was used as a novel heterogeneous catalyst to activate persulfate () for rhodamine B (RhB) degradation. Results indicated 10 mg/L RhB can be completely removed under the addition of 4 mM and 0.4 g/L Fe2(MoO4)3 within 240 min. Fe2(MoO4)3 can be repeatedly used for six cycles and showed high stability with Fe leaching amounts less than 2.9% in each run. Possible catalytic mechanism was proposed as follows: RhB degradation intermediate products such as hydroxybenzene, quinone compounds and organic compound radicals acted as electron transfer agents to reduce Fe3+ to Fe2+, which reacted with persulfate to form Fe3+ creating the redox cycling of iron, the RhB and those intermediate products are oxidized directly by the molybdenum peroxo complexes which forming probably with and persulfate, and the synergy between Fe3+ and occurring the catalytic effect on the persulfate. Additionally, the major intermediates of RhB were identified according to GC/MS and the possible degradation pathway was proposed.
研究领域:
环境科学
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化学工程
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2023
·
IF 7.2
Shuhui Fan,Yanan Hu,Tan Zhang,Qiang Zhao,Jinping Li,Guang Liu
The synthesis of ammonia via electrochemical nitrogen reduction reaction (NRR) provides an attractive alternative approach to the traditional Haber-Bosch process. In this regard, a one-step hydrothermal method was adopted to synthesize a bimetallic oxide， ferric molybdate (Fe 2 (MoO 4 ) 3 ), coated with carbon black on the surface (denoted as Fe 2 (MoO 4 ) 3 /C). The carbon black coating minimizes aggregation of Fe 2 (MoO 4 ) 3 , leading to increased electrochemical active sites for NRR. Additionally, this coating improves the electrical conductivity of Fe 2 (MoO 4 ) 3 thereby accelerating electron transfer between carbon black and Fe 2 (MoO 4 ) 3 , which is beneficial to charge transfer and enlarge the electrochemical active surface areas. At a potential of −0.4 V RHE (vs. reversible hydrogen electrode , RHE), the ammonia yield achieved was up to 51.76 μg h −1 mg cat −1 , with a Faradaic efficiency of 90.63% at −0.35V RHE . Impressively, this electrocatalyst exhibited excellent cycle stability and durability.
研究领域:
化学
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环境科学
·
材料科学
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产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Van Tu Nguyen,Yue Li Liu,Shah Abdul Hakim,Amr Rady Radwan,Bin Wei,Wen Chen
Fe 2-x Sn x (MoO 4 ) 3 samples were successfully synthesized by wet chemical route. The analytical results of X-ray diffractions indicated that the additions of tin have not destroyed the lattice structure of Fe 2-x Sn x (MoO 4 ) 3 , but increased the units cell volume. Fe 2-x Sn x (MoO 4 ) 3 can be exhibited higher discharge /charge capacities and better cycle-stability than the pristine one. At room temperature, the initial discharge capacity of Fe 1.95 Sn 0.05 (MoO 4 ) 3 is 83.12 mAh g -1 at a discharge rate of 0.5 C and remains 78.81 after 50 cycles. The improved electrochemical properties can be explaining with the presence of tin in the lattice of Fe 2 (MoO 4 ) 3 by improved the structure stability and electrical conductivity.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 4
·1-12
·
IF 5.3
Han Hong,Ji Yuhan,Zhao Xin,Yin Ling,Liu Xiangyi,Sha Jingquan
A colorimetric sensing method for salicylic acid (SA) was developed by designing and fabricating bimetallic oxide nanozymes. Firstly, by calcinating MIL-100(Fe)@PMo 12 (MOFs@POMs) at different temperature, Fe 2 (MoO 4 ) 3 -Ts (T = 400℃, 500℃, 600℃, 700℃) nanoparticles (NPs) were successfully prepared. Secondly, by evaluating the peroxidase-like activities, Fe 2 (MoO 4 ) 3 –600 NPs shows the best peroxidase-like activity attributed to the Fenton-like effect and the synergistic coupling interaction between Mo and Fe. Finally, based on the specific complexation between SA and Fe 3+ , a sensitive colorimetric sensor for SA was established, which exhibits superior selectivity and interference with a detection limit of 0.11 μM and a linear range of 10 to 100 μM, the lowest LOD for SA to date, to the best of our knowledge. Graphical abstract
研究领域:
材料科学
·
分析化学
·
生物医学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Ting Zhao,Hang Liu,Gacao Dou,Dongting Zhang,Junqiang Qiao,Juan Yang,Pengjun Ma,Cuiying Lu,Hongxia Li,Hongruo Ma,Kunjie Wang,Bingjun Yang
The nanostructured process effectively boosts the rate capability of Fe 2 (MoO 4 ) 3 . • The FMO-4.25 maintains a high capacity of 74.5 mAh g −1 at 100C. • Even at −20 °C, it retains 65 mAh·g −1 at 1C after 500 cycles. • In-situ EIS tracked interface kinetics evolution and CEI formation. Fe 2 (MoO 4 ) 3 (FMO), a promising polyanionic cathode material for sodium-ion batteries (SIBs), offers a stable three-dimensional framework, high operating voltage, and exceptional thermal stability, positioning it as a suitable candidate for large-scale energy storage systems. However, its practical implementation is still hindered by sluggish reaction kinetics. In this study, we address the issues of low electronic conductivity and slow Na + migration in FMO cathode material by an electrospinning-based nano-Synthesis strategy. By precisely regulating the pH of the precursor solution and optimizing the sintering process, the as-prepared FMO-4.25 electrode delivers a high specific capacity of 83.4 mAh·g −1 at 2C after 100 cycles and maintains a discharge capacity of 74.5 mAh·g −1 even at an ultrahigh rate of 100C. Moreover, it exhibits remarkable rate capability and long-term cycling stability even under low-temperature conditions. The electrochemical analysis reveals that the nano structuring of the FMO-4.25 electrode effectively enhances the kinetics of ion diffusion and electron transfer. Furtherover, the nanostructure effectively suppresses volume strain during Na + (de)intercalation, promotes the formation of a stable cathode-electrolyte interphase (CEI), and preserves the integrity of the interfacial and conductive networks, thereby synergistically improving the structural stability of the material. This work provides new insights into the controlled synthesis and mechanistic understanding of high-performance iron molybdate-based cathode materials, offering a valuable reference for advancing the practical application of SIBs in high-power and low-temperature environments. Download: Download high-res image (88KB) Download: Download full-size image
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高影响因子
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