ENERGY & FUELS
·
2025
·
IF 5.3
Shiyu Cao,Xiquan Qi,Xiangyu Zhao
Rechargeable magnesium batteries (RMBs) emerge as a promising alternative to postlithium battery systems due to their intrinsic advantages of magnesium metal anodes. However, the lack of a stable solid electrolyte interphase (SEI) on magnesium severely limits their interfacial reversibility and cycling life. Herein, we propose a simple solution-based surface engineering strategy to construct a robust artificial SEI layer on Mg metal through displacement reactions between Mg and InI3. The resulting In/MgI2@Mg electrode features a homogeneous and compact interphase composed of electrochemically favorable In, MgI2, and InMg alloy. This artificial SEI significantly enhances Mg2+ stripping/plating reversibility, lowers interfacial resistance, and suppresses passivation. The modified Mg anode exhibits a cycling lifespan of 725 h with a low overpotential of ∼80 mV, excellent rate performance, and a reduced activation energy of 17.92 kJ mol–1. When paired with a Mo6S8 cathode, the In/MgI2@Mg-based RMB delivers a high reversible capacity of 74.4 mAh g–1 (higher than 54.7 mAh g–1 of the bare Mg-based RMB), a reduced voltage hysteresis of 0.2 V, and superior Coulombic efficiency over extended cycling. This work highlights the effectiveness of iodide-mediated interfacial chemistry for stabilizing Mg metal anodes.
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DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Zhen-Xuan Ma,Jia-Guang Zheng,Mei-Ling Lv,Cong Li,Chang-Hai Wu,Pan-Pan Zhou,Chao Su,Lei Ge
en This research uncovered the influence of nitrogen-doped MXene Ti 3 CN on the reversible hydrogen storage properties of Mg(BH 4 ) 2 . The Mg(BH 4 ) 2 -20Ti 3 CN composite began releasing hydrogen at a temperature of 80°C. In addition, the composite discharged over 8.8 wt% hydrogen at a comparatively lower temperature of 270°C, whereas the pure Mg(BH 4 ) 2 emitted merely 5.9 wt% hydrogen under identical circumstances, which exhibited remarkably enhanced dehydrogenation kinetics. Furthermore, upon completion of four cycles, Mg(BH 4 ) 2 -20Ti 3 CN retained a reversible hydrogen storage capacity of 4.5 wt%, representing an 80% improvement over the undoped Mg(BH 4 ) 2 . In the course of the dehydrogenation phase, the boron atoms in Mg(BH 4 ) 2 were anchored by nitrogen atoms in Ti 3 CN to form B-N bonds, which helped suppress the formation of MgB 12 H 12 . During the subsequent rehydrogenation process, the B-N bonds broke, and the boron atoms reparticipated in the reversible transformation into [BH 4 ] − clusters. Meanwhile, the formation of Ti 0 by the reaction of Mg(BH 4 ) 2 with Ti 3 CN weakened the B-H bond energy, and the layered structure provided an effective way for hydrogen spillover. These factors collectively improved the reversible hydrogen storage capabilities of Mg(BH 4 ) 2 . 摘要 zh 本研究揭示了氮掺杂MXene Ti 3 CN对Mg(BH 4 ) 2 可逆储氢性能的影响。Mg(BH 4 ) 2 -20Ti 3 CN复合材料在温度80°C时开始放氢。此外,在270°C的较低温度下,该复合材料的氢排放量超过8.8 wt%,而在相同的条件下,纯Mg(BH 4 ) 2 的氢排放量仅为5.9 wt%,脱氢动力学显著增强。在完成四个循环后,Mg(BH 4 ) 2 -20Ti 3 CN保留了4.5 wt%的可逆储氢容量,比未掺杂的Mg(BH 4 ) 2 提高了80%。在脱氢过程中,Mg(BH 4 ) 2 中的硼原子被Ti 3 CN中的氮原子锚定形成B-N键,有助于抑制MgB 12 H 12 的形成。在随后的再氢过程中,B-N键断裂,硼原子重新参与可逆转化为[BH 4 ] − 簇。同时,Mg(BH 4 ) 2 与Ti 3 CN反应生成Ti 0 ,削弱了B-H键能,层状结构也为氢溢出提供了有效路径。这些因素共同提高了Mg(BH 4 ) 2 的可逆储氢能力。
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高影响因子
Advanced Energy and Sustainability Research
·
2025
·
IF 5.7
Arup Chakraborty,Haoxiang Wang,Kaijie Yan,Zinuo Xu,Zejing Lin,Chengliang Wang,Liumin Suo,Minglei Mao,Dan T. Major
Rechargeable magnesium batteries (RMBs) are a promising alternative to lithium-ion batteries because of the high capacity and crustal abundance of magnesium. However, RMBs are primarily plagued by low-energy-density of traditional cathode materials, which utilize transition-metal cationic redox chemistry. Herein, a new family of layered Ti 1- x Fe x S 2 (0 < x < 1) materials is proposed to assess anionic redox and boost the energy density of RMBs. The structural stability and redox activity are systematically investigated using first-principles calculations and operando experimental techniques. It is found that layered Mg n Ti 1- x Fe x S 2 materials are stable below x = 0.5, forming the solid-solution sulfides. The Mg n Ti 0.75 Fe 0.25 S 2 sample is experimentally shown to offer a high operating voltage of 1.8 V, a competitive energy density of 103 mAh g −1 , and better cycling stability compared to prototype TiS 2 material. Both cations (Ti and Fe) and anion (S) are revealed to take part in the redox reaction. The new family of layered Ti 1- x Fe x S 2 cathodes with joint cationic and anionic redox chemistry proposed in this work are promising high-energy cathode candidates for RMBs.
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Aijia Wei,Wen Li,Qian Chang,Xue Bai,Rui He,Lihui Zhang,Zhenfa Liu,Yanji Wang
Mg 2+ /F − co-doped LiNi 0.5 Mn 1.5 O 4 cathode material was synthesized by a facile one-step solid-state process. The effect of Mg 2+ /F − co-doping on grain morphology, phase structure, and electrochemical properties was studied by a series of characterizations. Scanning-electron-microscopy images show that Mg 2+ /F − co-doped LiNi 0.5 Mn 1.5 O 4 (denoted LNMO-MF) particles grow larger than pure LiNi 0.5 Mn 1.5 O 4 particles. X-ray diffraction, Raman spectra , Fourier transformation infrared spectroscopy , X-ray photoelectron spectroscopy, and cyclic-voltammetry tests indicate that all samples mainly display a Fd -3m space group and more Mn 3+ ions in the LNMO-MF sample after Mg 2+ /F − co-doping, which is conducive to increasing the cationic disorder degree and enhancing the electronic conductivity of electrode material. Results show that the LNMO-MF cathode material delivers an excellent rate performance with discharge capacities of 142, 144, 140 136, 132, 124, 115, and 100 mAh g −1 at 0.2, 0.5, 1, 2, 3, 5, 7, and 10C (1C = 140 mAh g −1 ), respectively. Remarkably, LNMO-MF also shows cycling stability with a capacity retention of 86.2% at 5C after 400 cycles, which is much higher than that of pure LiNi 0.5 Mn 1.5 O 4 (67.7%). The improvement of LNMO-MF's electrochemical properties could be ascribed to the Mg 2+ /F − co-doping, delivering a more stable structure, better crystallinity , the highest Li + diffusion coefficient , and the lowest charge-transfer resistance.
研究领域:
材料科学
·
电化学
·
无机非金属材料
·
能源存储
·
锂离子电池
·
固态化学
·
功能材料
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Qing Zhou,Kaiyu Lin,Yongxin Liu,Guohan Sun,Shumei Wang,Haiyun Zhai
A novel nonenzymatic electrochemical sensor with high sensitivity for detecting organic phosphate (OPS) in medicinal herbs was fabricated based on a Mg-Al layered double hydroxide (Mg-Al LDH) nanocomposite glassy carbon electrode (GCE) modified with a poly-m-amino-benzenesulfonic acid (p-m-ABSA) film. Depositing Mg-Al LDH nanocomposites onto the surface of the p-m-ABSA composite resulted in an effective electrical response by increasing the electrode surface area and enhancing the electron transfer process, so the electrocatalytic activity was significantly enhanced. The research illustrated that the fabricated sensor (Mg-Al LDH/p-m-ABSA/GCE) exhibited strong affinity, high sensitivity, and selectivity towards methyl parathion (MP) and fenitrothion (FNT). Scanning electron microscopy (SEM) was used to characterize the surface morphology of the modified electrode and showed that the p-m-ABSA film and a few p-m-ABSA nanoparticles were coated on the surface. The surface area of the electrode was further enlarged by Mg-Al LDH owing to their layered nanostructure. Under optimal conditions, the anodic current had a linear relation equal to 0.1∼20.0 µM MP and 0.01∼50.0 µM FNT, with detection limits (S/ N = 3) of 33.0 nM MP and 3.5 nM FNT, respectively. Furthermore, Mg-Al LDH/p-m-ABSA/GCE was successfully used for the detection of MP and FNT in Astragalus and Magnolia medicinal herb samples.
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DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2025
·
IF 7
Lingying Chen,Jiangchuan Liu,Qinke Tang,Qingzhu Wang,Zeyang Zhang,Kai Liu,Wenrui Li,Jiguang Zhang,Rui Shi,Yana Liu,Jun Wang,Yunfeng Zhu
Active metal hydrolysis is favored for safety and environmental friendliness in the field of hydrogen generation. In practice, however, dense oxide/hydroxide films form instantaneously on the metal surface; these passivating layers act as electronic insulators that severely curtail charge transfer and, consequently, suppress hydrogen evolution. Herein, a novel heterostructure of NiO/Ni(OH)2 was designed to enhance the electron transfer rate in the magnesium powder hydrolysis system, achieving rapid hydrogen production. Surprisingly, Mg-2 wt % NiO/Ni(OH)2 achieved a near 100% conversion rate, producing 880.2 mL g–1 of H2 in only 20 s at 30 °C. Its maximum hydrogen generation rate (mHGR) surpassed that of pure magnesium by 35-fold, and such hydrolysis performance is superior to all the reported results of catalyzed-Mg systems so far. Theoretical studies confirmed that the space charge region in NiO/Ni(OH)2 affects the electronic structure; thus, the correspondingly generated built-in electric field accelerated the hydrolysis of magnesium and greatly facilitated the electron transfer of the system. This work provides a strategy for designing nickel-based oxides/hydroxides catalysts for light metal hydrolysis and facilitates the understanding of the catalytic mechanism in multiphase catalytic systems.
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高影响因子
Nano Energy
·
2017
·
IF 12.343
Xiaowei Miao,Zhenying Chen,Nan Wang,Yanna Nuli,Jiulin Wang,Jun Yang,Shin-ichi Hirano
With the increasing global demand for large-scale electrical energy storage , rechargeable Mg-based batteries are preferable due to their substantial prospective benefits in terms of raw abundance, theoretical capacity, and operational safety. Herein, we demonstrate for the first time V 2 MoO 8 synthesized by a facile electrospinning method as a cathode material for rechargeable magnesium batteries with the electrolytes containing Mg 2+ or Mg 2+ /Li + ions. SEM and HRTEM indicate that the V 2 MoO 8 sample presents wedged-shaped cuboid, 300–500 nm (thickness) ×4–6 µm (length) and its monoclinic phase structure provides a interlayer distance of 4.20 Å. As cathode material, V 2 MoO 8 is discharged/charged in a specially self-designed mould battery using Mg metal anode at current densities from 20 to 500 mA g −1 . It delivers a high initial discharge capacity of 312 mA h g −1 with the initial coulombic efficiency of 87.2% at 20 mA g −1 in 0.4 M (PhMgCl) 2 -AlCl 3 /1.0 M LiCl/THF electrolyte and presents good cycling and rate performance. XPS analysis reveals that both Mg 2+ and Li + ions take part in the cathode intercalation reaction, along with the valence changes of Mo/V ions. Additionally, a reversible capacity of ca. 210 mA h g −1 is obtained in Mg 2+ electrolyte with the 1st cycle efficiency of 94% at 60 °C. The poor capacity retention is partially attributed to the irreversible phase change to amorphous state of V 2 MoO 8 .
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DOI
高影响因子
Materials Science & Engineering C-Materials for Biological Applications
·
2013
·Vol. 33
·期 8
·5044-5050
·
IF 2.404
Y.H. Xia,B.P. Zhang,C.X. Lu,L. Geng
In this paper, corrosion resistance of the Mg–4.0Zn–0.2Ca alloy was modified by micro-arc oxidation (MAO) process. The microstructure and phase constituents of MAO layer were characterized by SEM, XRD and X-ray photoelectron spectroscopy (XPS). The corrosion resistance of MAO treated Mg–4.0Zn–0.2Ca alloy in the simulated body fluid were characterized by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The microstructure results indicated that a kind of ceramic film was composed by MgO and MgF 2 was formed on the surface of Mg–4.0Zn–0.2Ca alloy after MAO treatment. The electrochemical test reveals that the corrosion resistance of MAO treated samples increase 1 order of magnitude. The mechanical intensity test showed that the MAO treated samples has suitable mechanical properties.
研究领域:
生物医学工程
·
材料科学
·
生物材料
·
表面工程
·
腐蚀科学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Xue-Yang Ji,Jingkai Li,Xueping Han,Weixin Zhang,Lingkai Zhu,Ziyou Li,Xiaozhen Ren,Hengshuai Li,Junchang Liu,Dafeng Zhang,Zhengping Li,Xipeng Pu
The symmetry-breaking structure can induce lattice distortion, modulate electron distribution, suppress carrier recombination, and optimizing catalytic activation via asymmetric atom interactions, which is of vital importance for improving the photocatalytic H 2 O 2 production activity. In this paper, the symmetry-breaking structures of Mg-modified ZnIn 2 S 4 microspheres are synthesized through a convenient single-step hydrothermal method using the gradient introduction amounts of Mg. X-ray absorption spectrum, X-ray photoelectron spectroscopy, and transmission electron microscopy indicate that the introduction of Mg can modify the bond lengths and crystal plane angles of the substrate material to construct a symmetry-breaking structure. The photocatalytic H 2 O 2 production performance of MZIS-15 is approximately 3.3-fold than ZnIn 2 S 4 up to 2797.0 μmol h⁻ 1 g⁻ 1 . Furthermore, femtosecond transient absorption spectra, photoelectrochemical measurements, and density functional theory (DFT) calculations reveal that, although the optimal symmetry-breaking structure does not significantly alter the light absorption range and bandgap width, it greatly suppresses the recombination of photogenerated electron–hole pairs, enhances the charge separation efficiency, and lowers the adsorption energy barrier of the O 2 molecule. This work provides a systematic research perspective on symmetry-breaking structures, and also offers new research ideas for the synthesis of advanced catalysts.
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高影响因子
Chemistry-An Asian Journal
·
2026
·Vol. 21
·期 18
·e70998
·
IF 3.2
Jing Li,Yuliang Chen,Wenjuan Liu,Xiaoyong Zhao,Juan Gui,Qiuyu Wei
Desorption electrospray ionization (DESI) mass spectrometry (MS) is an increasingly indispensable tool for the analysis and imaging of drug molecules. However, the drug tracked by DESI MS is subjected to poor signal sensitivity due to the low drug dosage and tissue distribution. In this work, a Mg-based micromotor active drug delivery carrier (Mg/PLGA/CANA/CHI) was proposed for the successful encapsulation of canagliflozin (CANA). Compared to the persral and passive drug administration, this active drug delivery vector significantly improved the sensitivity for renal detection of CANA at m/z 489.1378 and 479.1089, determined as [CANA+HCOO] − and [CANA+Cl] − by both UPLC-HRMS and DESI MS. Furthermore, the drug delivery carrier was adopted for the DESI MS imaging (DESI MSI) of CANA in the mouse kidney section, which resulted in higher sensitivity than those with persral and passive drug administration attributed to the intensive micromotor‑enhanced gastric mucosal adhesion, thus contributing to high oral bioavailability. Meanwhile, this Mg-based micromotor has no interference with MS and MSI detection of the drug. Overall, the strategy of combining the active drug delivery of Mg-based micromotors with mass spectrometry detection provides a new method for the detection of low-dose drugs, their localization in tissues, and the evaluation of therapeutic efficacy.
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DOI
PubMed
高影响因子
Materials
·
2026
·Vol. 19
·期 10
·2006
·
IF 3.7
Wenchao Zhan,Yuefeng Wang,Xumin Wang,Hao Yang,Qianqian Feng,Xianfen Wang
Thanks to their low cost and environmental sustainability, sodium-ion batteries have emerged as a highly attractive alternative to lithium-ion systems in the field of large-scale energy storage; however, issues such as insufficient energy density and poor cycle stability have hindered their widespread adoption. We have rationally designed a Mg/Li co-doped P2-type NLMMO (Na0.8Mg0.22Li0.08Mn0.7O2) cathode material that enables reversible anion redox reactions through synergistic interactions, enhancing the stability of the layered framework. The material exhibits an exceptional initial discharge capacity of 158 mAh g−1at 2.0–4.4 V and retains 68% of its capacity after 400 cycles at 0.1 A g−1, surpassing the performance of both lithium-doped (Na0.8Li0.3Mn0.76O2, NLMO) and magnesium-doped (Na0.8Mg0.3Mn0.7O2, NMMO) materials. In situ XRD shows that NLMMO has structural stability, and the Mg doping modification strongly inhibits the phase transition and stabilizes the interlayer structure. Ex situ XPS analysis indicates that the lattice oxygen in the cathode material underwent changes. This study provides a new path for designing cathodes with synergistic anionic and cationic redox reactions.
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DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Dawei Zhang,Lei Huang,Haoyu Li,Menglin Niu,Zeeshan Abbasi,Yue Li,Tongqi Ye,Xuelan Hou,Maofeng Zhang,Jie Ren
The development of high-activity Ni-based catalysts for efficient CO2 methanation remains challenging, primarily due to Ni particle aggregation under high loading conditions, which limits their long-term stability at low temperature. To address this issue, this work evaluates the effect of doping with typical metals M (i.e., Co, La, Fe, and Ce) on the properties of Ni–Mg–Al layered double oxides (LDOs). The Ni–Co LDO (Ni/Co = 18:2, wt%), with the lowest activation energy (i.e., 54.5 kJ/mol), achieved 80% CO2 conversion and 99.9% CH4 selectivity at 350 °C, while Ni–La LDO only showed 73% CO2 conversion. The catalytic performance of optimized Ni–Co LDO is also quite stable under a 140 h time-on-stream thermal shock evaluation. Comprehensive characterization reveals that Co doping is particularly effective in generating abundant oxygen vacancies, creating numerous interfacial basic sites and stabilizing small Ni particles. In situ DRIFTS analysis further elucidates the resulting differences in reaction intermediates, pathways, and coordination environments, linking the enhanced structural properties to superior catalytic performance.
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DOI
高影响因子
危险品化学品经营许可证（带存储）