Journal of Energy Storage
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2026
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IF 9.8
Yuan Qin,Lu Huang,Xufeng Wang,Liang Luo,Zihao Ou,Youcun Bai,Bin Xiang,Yang Zhou,Xuefeng Zou,Hujun Shen
MnO anodes face serious limitations in high performance lithium–ion batteries due to their intrinsically low electronic conductivity and significant volume expansion during cycling. Here, we propose a simple lattice–engineering strategy to precisely control the degree of lattice contraction and induce an in situ electrochemical amorphization process. Existing strategies can partially buffer mechanical stress and enhance charge transfer but still fail to overcome the intrinsically poor conductivity of MnO and the limited ability of conventional carbon matrices to accommodate electrochemical amorphization. In our design, we establish a hierarchical stabilization system governed by lattice engineering. Specifically, the lattice contraction introduces controllable oxygen vacancies, which serve as the trigger for a cycle-driven in-situ amorphization mechanism. This intrinsic structural reconstruction, synergized with the extrinsic protection of an N-doped adaptive carbon interface, enables the superior long-term cycling stability and enhanced capacity of MET(5Mn)-700. The MET(5Mn)-700 half–cell retains over 90% of its initial capacity after 500 cycles at 1.0 A g −1 , while an NCM811‖MET(5Mn)-700 full cell maintains 93% capacity retention after 200 cycles at 1C. This multilevel structure–interface–dynamics design overcomes the performance degradation bottleneck of traditional Mn–based anodes, providing a new paradigm for developing high–stability lithium–ion battery anodes.
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高影响因子
DENTAL MATERIALS
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2026
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IF 6.3
Meng Bo,Jiao Fang,Yuning Wu,Zixuan Chen,Yingchi Liu,Shuang Liu,Chunyan Li,Lin Wang,Xiaolin Sun
A metabolically reprogrammed MnO₂-Mg/Pt@BBF nanozyme is developed for periodontitis treatment. • Mg²⁺ amplifies endogenous H₂O₂ production via SpxB in Streptococcus gordonii. • Pt decoration enriches catalytically active Mn²⁺ to enhance chemodynamic therapy. • Covalently immobilized BBF inhibits LuxS/AI-2 quorum sensing and disrupts biofilm cohesion. • The nanozyme reduces bacterial burden, alveolar bone loss, and inflammation in vivo . Objectives To overcome the intrinsic incompatibility between dense periodontal biofilms and chemodynamic therapy (CDT), we developed a vacancy–engineered MnO₂ nanozyme that integrates redox–state programming, Mg²⁺–enabled endogenous H₂O₂ amplification, and covalently immobilized quorum–sensing inhibition for the local treatment of periodontitis. Methods Mg²⁺–coordinated MnO₂ nanoflowers were decorated with Pt nanoparticles and covalently functionalized with BBF. Physicochemical properties, Mn valence states, H₂O₂ and ·OH generation, LuxS/AI–2 signaling, Porphyromonas gingivalis metabolomic changes, antibiofilm activity, and therapeutic efficacy in rat periodontitis were evaluated. Results Pt decoration increased the Mn²⁺ fraction from 33% to 51%, while Mg²⁺ enhanced SpxB–mediated H₂O₂ production by Streptococcus gordonii . Immobilized BBF reduced AI–2 activity from 67.8% to 22.8% and downregulated luxS, fimA, mfa1, kgp, and rgpA . In dual–species biofilms, MnO₂–Mg/Pt@BBF yielded 68.7% dead cells, an approximately 4–log₁₀ reduction in viable bacteria, and the lowest residual thickness. Metabolomics revealed depletion of G6P, R5P, NADPH, ATP, and α–ketoglutarate in P. gingivalis. In vivo , treatment reduced periodontal bacterial burden by approximately 3 orders of magnitude and decreased the CEJ–ABC distance from 1.44 ± 0.28 mm to 0.56 ± 0.15 mm, accompanied by reduced inflammation and IL-6 expression, improved collagen organization, and elevated Arg-1 levels. Significance This locally deliverable platform couples vacancy/valence–tuned catalysis, Mg²⁺–primed endogenous oxidant supply, and surface–immobilized quorum–sensing blockade, offering a composition–guided strategy for controlling polymicrobial periodontal biofilms and limiting infection–associated tissue destruction.
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高影响因子
CARBON
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2022
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IF 11.307
Xue Zhang,Xuelei Tian,Chang Liu,Jing Qiao,Wei Liu,Jiurong Liu,Zhihui Zeng
Metal-organic frameworks (MOFs) have attracted more and more attentions for preparing electromagnetic wave (EMW) absorption materials because of the porous structure , high specific surface area, and designable configuration. Herein, a series of MOF-74 derived nanocomposites were synthesized by hydrothermal process and subsequent carbonization . The EMW absorption performance and the functions of each component were investigated in depth. Moreover, the inherent EMW absorption mechanisms were comprehensively revealed. Benefiting from the synergistic effect of constituents and microstructure, the MnCo-MOF-74 derived MnO/Co/C nanocomposites delivered a minimum reflection loss value of −68.89 dB at the thickness of 2.64 mm and an effective absorption band of 5.3 GHz at the thickness of 2.3 mm. The high EMW absorption performance was ascribed to the optimized impedance matching and multiple attenuation mechanisms including interfacial and dipole polarization loss, magnetic loss, conductive loss, and multiple scatterings capability. This study shed light on exploring high-efficiency MOF-based EMW absorption materials with rational design of components and structure.
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高影响因子
ELECTROCHIMICA ACTA
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2020
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IF 6.215
Fang Tang,Jinyu Gao,Qiaoyun Ruan,Xianwen Wu,Xiangsi Wu,Tao Zhang,Zhixiong Liu,Yanhong Xiang,Zeqiang He,Xianming Wu
ABSTRACT Aqueous zinc ion batteries (AZIBs) show tremendous application prospect in the fields of energy storage for smart grid and electric tools because of their high safety, environmental benignity and low cost. However, the sluggish zinc ion diffusion kinetics and the serious manganese dissolution issue seem to impede its practical application. Herein, the MnO/C@rGO composites are fabricated via an in situ strategy of one-step MOFs-derived solvothermal method , combined with a calcination step at 570 °C under Ar for 2 h. As further evaluated as a cathode for AZIBs, it can maintain a discharge capacity of 170.6 mAh g -1 after 300 cycles at 500 mA g -1 . Importantly, even as the current density reaches up to 2.0 A g -1 , it still delivers a reversible capacity as high as 110.1 mAh g -1 . The excellent cycleability, superior rate capability and smaller self-discharge phenomenon are ascribed to the inhibition of manganese dissolution and the conductivity improvement. Therefore, this work may give a new insight into improving the comprehensive electrochemcial performances of manganese-based cathode materials for AZIBs with large power densities and long cycle life.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2019
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IF 4.175
Zhenglu Zhu,Kaikai Bai,Haibin Zuo,Enyu Ma,Zhiqiang Xu,Lincheng Liu
Rapid technological advancements and increasing demand for the efficient utilisation of global resources have promoted the design and development of sustainable anode materials to achieve batteries with high specific capacities and excellent rate capability for energy-storage devices. Herein, a high-performance MnO nitrogen-doped carbon anode material for lithium-ion battery based on coffee residues, potassium permanganate, and urea is presented. MnO and N are uniformly embedded inside the carbon material, connected by N–Mn bonds. The introduction of N not only hinders the aggregation of Mn nanoparticles generated during lithiation, but also enhances the electrochemical activity of carbon and improves the electrical conductivity for better reaction kinetics. These benefitting factors promote the high reversible specific capacity of 768 mA h g −1 at the current density of 0.3 A g −1 , as well as superior cyclic and stability performance. The demonstrated high-performance and low-cost anode material also provides a sustainable route for the high-value-added utilisation of waste biomass.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2015
·Vol. 132
·期 31
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IF 1.768
Haitao Huang,Tao Yue,Yanyun Xu,Ke Xu,Haibo Xu,Shiyuan Liu,Jiahui Yu,Jin Huang
To enhance biocompatibility and physiological stability of hydrophobic MnO nanoparticles as contrast agent of T 1 -weighted magnetic resonance imaging (MRI), dopamine-functionalized poly(ethylene glycol) (PEG) was used to coat the surface of about 5 nm MnO nanoparticles. Although hydrophilic coating might decrease longitudinal relaxivity due to inhibiting the intimate contact between manganese of nanoparticle surface and proton in water molecules, higher longitudinal relaxivity was still maintained by manipulating the PEGylation degree of MnO nanoparticles. Moreover, in vivo MRI demonstrated considerable signal enhancement in liver and kidney using PEGylated MnO nanoparticles. Interestedly, the PEGylation induced the formation of about 120 nm clusters with high stability in storing and physiological conditions, indicating passive targeting potential to tumor and prolonged circulation in blood. In addition, the cytotoxicity of PEGylated MnO nanoparticles also proved negligible. Consequently, the convenient PEGylation strategy toward MnO nanoparticles could not only realize a good “trade-off” between hydrophilic modification and high longitudinal relaxivity but also contribute additional advantages, such as passive targeting to tumor and long blood circulation, to MRI diagnosis of tumor. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42360.
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高影响因子
JOURNAL OF RARE EARTHS
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2014
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IF 1.342
Xiaodong WU,Haining YU,Duan WENG,Shuang LIU,Jun FAN
MnO and CeO 2 powders were mechanically mixed by a spatula and by milling to obtain loose-contact and tight-contact mixed oxides, respectively. The monoxides and their physical mixtures were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), Raman, O 2 temperature-programmed desorption (O 2 -TPD), H 2 temperature-programmed reduction (H 2 -TPR) and NO temperature-programmed oxidation (NO-TPO). The MnO x -CeO 2 solid solutions did not form without any calcination process. The oxidation state of manganese tended to increase while the ionic valence of cerium decreased in the mixed oxides, accompanied with the formation of oxygen vacancies. This long-ranged electronic interaction occured more significantly in the tight-contact mixture of MnO and CeO 2 . The formation of more Mn 4+ and oxygen vacancies promoted the catalytic oxidation of NO in an oxygen-rich atmosphere.
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高影响因子
AICHE JOURNAL
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2025
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IF 4
Haichao Zhou,Jianglin Liu,Dalang Chen,Yanlin Qin,Tiejun Wang,Xueqing Qiu,Xuliang Lin
The electrochemical conversion of glycerol into dihydroxyacetone (DHA) under mild conditions efficiently addresses glycerol surplus, enhancing its economic value. However, DHA production efficiency remains constrained by steric hindrance from secondary hydroxyl groups and sluggish glycerol electro-oxidation reaction (GOR) kinetics in weakly alkaline conditions. Herein, lignin-derived carbon-supported MnO–Ni heterojunction catalyst (MnO–Ni/C) is synthesized via self-assembly precipitation and in situ pyrolysis. The optimized MnO–Ni/C catalyst requires a low potential of 1.58 V to achieve 10 mA cm −2 , 270 mV lower than the oxygen evolution reaction (OER). It attains a 53.37% DHA selectivity with a high production rate of 864.75 mmol m −2 h −1 at 1.8 V. MnO–Ni/C heterostructures modulate the local electronic structure of Ni sites, optimizing glycerol adsorption configuration and enhancing selective adsorption of secondary hydroxyl groups and oxygen active species near the electrode surface. These synergistic effects significantly improve GOR kinetics and DHA production efficiency.
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高影响因子
CERAMICS INTERNATIONAL
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2022
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IF 5.532
Shuangze Yang,Zhimin Zou,Chunhai Jiang
Manganese monoxide (MnO) has been widely studied as a potential anode material of Li-ion batteries because of its high specific capacity and abundant raw materials. However, the poor cycling stability of MnO associating to its large volume change during the repeated conversion reaction with Li + has restricted its practical applications. Herein, ternary MnO/MnTiO 3 @C composite anode materials are prepared by in situ capturing TiO 2 nanoparticles into sea urchin-like MnO 2 in a mild hydrothermal reaction , followed by resorcinol-formaldehyde (RF) resin coating and thermal treatment. With the strong stabilization effect of the MnTiO 3 component, the optimized ternary MnO/MnTiO 3 @C composite anode exhibits greatly enhanced cycling performance as compared to MnO@C. A reversible capacity of 383 mAh g −1 is preserved after 500 cycles at 1000 mA g −1 . This improved cycle performance can be originated from the stable TiO crystals and the highly reversible amorphous Li x MnTiO 3 phase generated in the first lithiation process. The reasonably high specific capacity and robust cycle stability enable the ternary MnO/MnTiO 3 @C composites to be promising alternative anode materials to graphite for Li-ion batteries.
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高影响因子
Nanomaterials
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2019
·Vol. 9
·期 12
·1676
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IF 4.034
Pianpian Ma,Na Lei,Bo Yu,Yongkun Liu,Guohua Jiang,Jianming Dai,Shuhong Li,Qiuling Lu
La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO3/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposit morphology of LMO/MnO, and the corresponding electrochemical properties have been investigated in detail. Carbon cloth-supported LMO/MnO electrode exhibits a specific capacitance of 260 F·g−1at a current density of 0.5 A·g−1in 0.5 M Na2SO4aqueous electrolyte solution. The cooperative effects of LMO and MnO, as well as the uniform nano-array morphology contribute to the good electrochemical performance. In addition, a symmetric supercapacitor with a wide voltage window of 2 V is fabricated, showing a high energy density of 28.15 Wh·kg−1at a power density of 745 W·kg−1. The specific capacitance drops to 65% retention after the first 500 cycles due to the element leaching effect and partial flaking of LMO/MnO, yet remains stable until 5000 cycles. It is the first time that La-based perovskite has been exploited for flexible supercapacitor applications, and further optimization is expected.Keywords:perovskite-type LaMnO3/MnO;supercapacitor flexible electrode;electrochemical properties;carbon cloth;electrodeposition
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PubMed
高影响因子
Chemical Engineering Journal Advances
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2021
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IF 0
Zheng Liu,Xiaodan Wang,Fengyu Lai,Chao Wang,Nan Yu,Hongxia Sun,Baoyou Geng
A three-dimensional MnO/C nanocomposite is fabricated through a simple route of immersion and subsequent calcination. The carbon content and morphology of the sample are adjusted by adjusting the calcination temperature. This material combines the excellent lithium storage performance of MnO and the good stability of carbon. Because MnO is embedded in the three-dimensional carbon networks, it can provide proper space to alleviate the volume effect during discharging and charging. The unique architecture and large surface area enable the composites to exhibit remarkable lithium storage properties with outstanding rate performance, high reversible capacity, and cycle life. The optimized sample (MnO/C-750) has excellent performance of 1067.95 mAh g −1 at 0.2 A g −1 over 200 cycles and 722.32 mAh g −1 at 1 A g −1 over 600 cycles.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
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IF 4.6
Jiajia Zhang,Xin Wang,Sumin Xu,Jianying Qu
In this study, NiMn MOFs were in-situ grown on Ti 3 C 2 and then calcined at high temperature to obtain the Ti 3 C 2 /MnO/NiNPs nanocomposites. A series of characterization including SEM, TEM, XRD, XPS and electrochemical techniques were carried out to investigate the elemental composition, morphology, structure and performance of the materials. The experiments demonstrated that the sensor based on this material has good electrocatalytic activity to redox reactions of ascorbic acid (AA) and dopamine (DA) and could simultaneously detect them. Under the optimal conditions, the oxidation currents of AA and DA showed significant linear relationships with their concentrations in the ranges of 50.00–6000.00 μM and 0.20–120.00 μM, respectively. The detection limits were 17.92 μM and 0.03 μM, respectively. This sensor could effectively detect AA and DA in artificial urine samples simultaneously, and exhibited good stability, repeatability, anti-interference ability and a wider linear range, showing potential application prospects.
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