Journal of Energy Storage
·
2026
·
IF 10.7
Huihui Gan,Jia Dong,Siqi Ying,Dexian Zhou,Jiao Zhang,Daiwei Li,Jing Wang,Binghua Zhou,Shizheng Zheng,Changyuan Hu
Li-rich Mn-based oxide (LRMO) represents a promising cathode for next-generation lithium-ion batteries due to its superior energy density. However, its widespread commercialization is hampered by severe capacity fade, voltage decay, and inferior rate performance. Herein, modification of LRMO with Li 3 PO 4 (LPO) is achieved by a novel one-step strategy that seamlessly integrates freeze-drying with subsequent calcination in air. Crucially, this LPO significantly enhances lithium-ion diffusion kinetics without altering the bulk crystal structure. The optimized cathode with a 3 wt% LPO delivers superior cycling stability, with a remarkable capacity retention of 67.8% after 600 cycles at 1C and 25 °C, significantly outperforming the blank cathode (54.9%). It also exhibits outstanding rate capability (102.9 mAh g −1 at 10C) and long-term cyclability (58.0% capacity retention after 1000 cycles at 3C). Furthermore, the practical applicability is further demonstrated under a 1.5C/0.5C protocol and in a full cell with a Si@C anode. This work provides a scalable synthesis route, advancing the development of practical high-energy LRMO cathodes.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yutong Zhang,Shuangdou Wu,Lingling Song,Junqin Mao
Developing bioactive piezoelectric ceramics that simultaneously provide electromechanical stimulation and osteogenic regulation remains a major challenge in bone repair. Here, Mn-doped bioactive glass/SrTiO 3 (BG-STO) composite ceramics were fabricated via solid-state sintering to establish a defect-engineered piezoelectric platform with enhanced bioactivity. Structural analyses confirmed SrTiO 3 as the primary phase, while BG incorporation induced grain refinement, lattice distortion, and secondary phase formation. XPS results revealed increased oxygen vacancies and Ti 3+ content, indicating defect-dipole-mediated polarization. The piezoelectric coefficient reached a maximum of ∼1.4 pC/N at 20 wt% BG, accompanied by stable electrical output, reflecting a balance between polarization enhancement and conductivity screening. Biological assays demonstrated excellent cytocompatibility, hemocompatibility, and sustained promotion of stem cell proliferation driven by bioactive ion release. These findings highlight BG-STO ceramics as promising candidates for synergistic electromechanical-biochemical modulation in bone regeneration.
✓ 已验证
DOI
高影响因子
CARBON
·
2026
·
IF 12.7
Jiabei Yu,Depeng Zhang,Xinyu Lu,Siqi Wang,Liying Wang,Yuqing Zhang,Sen Zhang,Chao Deng
Dual single-atom catalysts (DACs) provide an efficient clue to conquer the sluggish kinetics of oxygen reactions in Zn-air batteries (ZABs). However, the precise modulation on local microenvironment of DACs sites are still challenging. Herein, we report a defect-driven strategy to manipulate the microenvironment of Fe/Mn dual atomic sites that anchor on a carbon nanofiber (def-FeMn/CNF). Theoretical calculation results reveal that the defects modulate the local microenvironment of dual atom sites, which decreases the energy barrier and enhances the catalytic behaviors. Finite element analysis (FEA) modeling results demonstrate the porous carbon nanofiber is beneficial to mass transports and ensures fast kinetics. Benefitting from both aspects of advantages, the def-FeMn/CNF catalyst displays the superior pH-universal electrocatalytic properties, fast kinetics, and high stability. It exhibits the half-wave potentials of 0.92 V and 0.87 V in alkaline and acidic conditions, which outperform the FeMn-DAC/CNF, N–FeMn/CNF, Fe-SAC/CNF, and Mn-SAC/CNF reference samples. Moreover, the full Zn-air battery (ZABs) with def-FeMn/CNF cathode shows the high power densities of 295 W kg −1 and high stability over long-term (1000 h) cycling. Furthermore, the quasi-solid-state Zn-air batteries achieve a smooth operation over a wide-temperature range and a long-term (800 h) operational stability at curved state. Therefore, the defect-driven approach provides an efficient strategy to manipulate the local microenvironment of DACs for boosted catalytic properties. Moreover, it also gives a new clue to design and fabrication of pH-universal electrocatalysts towards diverse working conditions. Download: Download high-res image (485KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Jingzhao Lu,Yanfang Zhu,Zhen He,Jun Zhao,Bingxia Duan,Yanyan Lu,Zhiliang Li,Yapeng Zhou,Guizhu Wu
Antibiotic residues pose a serious threat to aquatic environment, underscoring the urgency of developing efficient and stable advanced oxidation technologies. While the activation process based on peroxymonosulfate (PMS) shows great promise, its efficacy is highly dependent on the performance of the catalyst. In this study, a novel Mn 3 O 4 -Mn 5 O 8 nanohybrid was successfully synthesized and its performance in activating PMS for the degradation of tetracycline (TC) was systematically evaluated. By constructing an electron-rich interface, the nanohybrid achieved optimized manganese valence distribution and efficient cycling, leading to significantly enhanced catalytic activity. In the PMS system, the Mn 3 O 4 -Mn 5 O 8 attained 99.4% TC removal within 30 min, with the reaction rate constant (0.150 min⁻ 1 ) significantly exceeding those of the Mn 3 O 4 (0.052 min⁻ 1 ) and Mn 5 O 8 (0.066 min⁻ 1 ) systems, while the manganese leaching rate (3.65%) was much lower than that of unstable Mn 3 O 4 (8.53%). Mechanistic investigations revealed that the outstanding performance originated from interface-driven manganese valence cycling and electron transfer, which synergistically regulated both radical (O 2 ⁻) and non-radical ( 1 O 2 ) pathways. Furthermore, the catalyst exhibited good anti-interference capability in complex water matrices and cycling stability. This work provided a novel design principle centered on interface engineering and valence state synergy for developing high-performance manganese-based catalysts in PMS-driven water purification.
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Shu-Yu Wang,Yin-Hong Niu,Fang-Di Hu
A ratiometric colorimetric sensing platform was developed for nitrite detection, featuring a trimetallic metal-framework (MOF) nanozyme (Mn/Ni/Fe-MOF) synthesized via a facile one-pot solvothermal method. Comprehensive characterization revealed its successful fabrication and superior structural properties. The rational design of the trimetallic system creates a synergistic electron transfer network, endowing it with significantly enhanced peroxidase-like activity that surpasses its mono- (Fe-MOF) and bimetallic counterparts (Mn/Fe -MOF and Ni/Fe -MOF). This advancement leads to a low detection limit of 1.39 μM and a wide linear range of 2.0–150 μM for nitrite sensing, improving the sensitivity of nanozyme-based colorimetric method. Leveraging this high activity, Mn/Ni/Fe-MOF catalyzed H 2 O 2 -mediated oxidation of colorless 3,3′,5,5′-tetramethylbenzidine (TMB) to blue product (oxTMB). Subsequently, a robust ratiometric platform (A 450 /A 652 ) was constructed based on a specific diazotization reaction between nitrite and oxTMB, which induced a distinct color change and an absorbance shift. Unlike single-signal assays prone to fluctuations, this internal reference mechanism automatically corrects for common interferences, ensuring high accuracy and reliability in complex matrices, as evidenced by excellent recoveries (97.9%–102.3%) in real samples (tap water and sausage). The entire system is characterized by remarkable simplicity: the nanozyme is synthesized via a facile one-pot method, and the detection requires only a single-step addition of nitrite to the pre-formed oxTMB system under mild acidic condition. This streamlined, “mix-and-detect” protocol avoids complex modifications, multi-step reactions, or sophisticated instruments, offering practical advantages for potential on-site application. This work presents a reliable, high-performance sensing strategy and highlights the great potential of multi-metal MOF nanozymes in designing advanced sensors.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2026
·
IF 18.1
Yao Zhenjie,Zhang Wenyao,Chen Xinyu,Cui Junjie,Zhu Boyuan,Tang Jiahao,Hou Yangrui,Chen Jiarong,Tang Li,Zeng Jianrong,Jia Hongbing,Antonietti Markus,Zhu Junwu
The structural integrity of layered VOPO 4 frameworks critically determines their electrochemical performance in aqueous zinc-ion batteries, yet the highly ordered stacking of VOPO 4 renders it susceptible to lattice stress accumulation and chemo-mechanical degradation during cycling, causing rapid capacity fading and a shortened battery lifespan. Herein, we show a strategy to alleviate these limitations through partial metal substitution in the VOPO 4 lattice, enabling the modulation of local coordination environments and mitigating lattice and cycling induced stress. As a proof-of-concept, theoretical calculations and experimental validation on Mn-substituted VOPO 4 reveal shortened M–O bond along the c-axis and the formation of Mn–O–P–O–V delocalized structure. These modifications introduce subtle lattice distortions and generate percolation channels that enable more facile, ordered Zn 2+ migration, facilitating uniform lattice stress distribution. Real-time monitoring of interfacial stress during cycling identifies that Mn incorporation induces electronic redistribution and lattice anisotropy, promoting balanced intra-layer (a/b-axis) stress accommodation. Therefore, Mn-substituted VOPO 4 exhibits higher specific capacity and cycling stability, with 91.0% capacity retention over 2000 cycles at 1 A g −1 . This intra-layer anisotropy engineering strategy offers a practical route for mitigating dissolution and strain effects during cycling, paving ways for the development of high-energy-density positive electrodes with cycling durability.
✓ 已验证
产品关联
DOI
高影响因子
Laser & Photonics Reviews
·
2025
·
IF 10
Zhe Feng,Haixia Cui,Yurou Yan,Shujuan Liu,Qiang Zhao
X-ray imaging and detection technologies based on scintillators are extensively utilized in both medical diagnosis and industrial nondestructive inspection. However, traditional rigid planar scintillation screens are susceptible to vignetting and distortion problems because of the inhomogeneity of X-ray dose distribution. Flexible scintillation screens based on highly efficient metal-based halides can effectively solve the above-mentioned problems. In this work, a series of novel 0D Mn(II)-based halides ((C 5 H 5 N) 2 MnBr 4 , (C 7 H 10 N) 2 MnBr 4 , (C 8 H 12 N) 2 MnBr 4 and (C 9 H 14 N) 2 MnBr 4 ) are designed and synthesized with small-sized pyridine derivatives. Increasing the Mn–Mn distances through an alkyl chain modification strategy can effectively suppress the nonradiative transition and enhance exciton utilization, and thus their photoluminescence quantum yields (PLQYs) are significantly enhanced from 58.76% to 99.64%. (C 9 H 14 N) 2 MnBr 4 crystals with the highest PLQYs demonstrate superior X-ray scintillation properties with a high relative light yield of 57739 photons MeV −1 , which is 2.6 times higher than the commercial scintillators (LuAG: Ce). Moreover, the flexible scintillation screen composed of (C 9 H 14 N) 2 MnBr 4 and thermoplastic polyurethane achieves a high resolution of 17.8 lp mm −1 and is successfully applied for nonplanar objects to reduce image distortion. This work not only provides a strategy for improving PLQYs of Mn(II)-based halides but also demonstrates their practical applications for X-ray imaging of non-planar objects.
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Yongwei Tang,Haoliang Liu,Xu Zhu,Mengting Liu,Wenjie Tang,Guang-Xu Wei,Yi-Hu Feng,Bing Xiao,Peng-Fei Wang
Mn-based layered oxides are regarded as a promising cathode candidate for potassium-ion batteries (PIBs) due to their high theoretical capacity and low cost. However, the cooperative Jahn–Teller distortion (CJTD) derived from six-coordinated high-spin Mn (III) (t2g3–eg1) centers is a serious issue that induces severe structural instability such as irreversible phase transformations, structural degradation, and Mn dissolution, thus deteriorating their cycling life during repeated charge and discharge processes. Herein, a P3-K0.4Li0.1Fe0.1Mn0.8O2 (KLFMO) cathode material is designed to regulate CJTD and corresponding electronic structures through quantifying occupancy in the dx2–y2 and dz2 orbitals of Mn. The synergistic incorporation of Li and Fe suppresses Mn (3d-eg*) orbital splitting, which contributes to restrained Jahn–Teller distortion of MnO6, enlarged K layer spacings, and contracted transition-metal slabs. Therefore, the detrimental phase transition from P3 to O3, local strain concentration, inhomogeneous surface structure reconstruction, and severe manganese dissolution are significantly alleviated due to the suppressed CJTD. Consequently, the target KLFMO cathode achieves a high capacity of 110.2 mA h g–1 at 0.2C and great cycling stability with 84.2% capacity retention after 150 cycles at 0.6C. Our findings provide an effective method to develop stable 3d transition-metal compounds free from the Jahn–Teller effect for advanced secondary batteries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Haoyu Gu,Shuo Wang,Siqing He,Xiang Su,Yule Yang,Hu Zhao,Chongpu Zhai,Shubao Shao,Minglong Xu
The practical application of ferroelectric shape memory ceramics in high-precision actuation systems faces dual constraints from limited strain memory combined with excessive overshoot. To address this challenge, through poling and aging treatments of MnO 2 -doped Pb 0.94 Sr 0.05 La 0.01 (Zr 0.54 Ti 0.46 )0 .9975 O 3 ceramics, we developed a material system demonstrating enhanced strain memory S m (0.38 %) and superior memory-overshoot ratio R mo (3.64). Mechanism investigations reveal oxygen vacancies' pivotal role in enhancing the ferroelectric shape memory effect. The directional arrangement defect dipoles formed by oxygen vacancies enhance asymmetric domain switching to amplify strain memory. Meanwhile, the local pinning effect of oxygen vacancies selectively limits non-memory strain and reduces overshoot. The optimized performance stems from the synergistic interplay of these complementary mechanisms. The proposed methodology establishes a generalizable framework for developing ferroelectric shape memory ceramics, paving the way for industrial-grade shape memory devices.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Thermal Science
·
2025
·
IF 2.6
Yu Hao,Wang Weiran,Bian Zhiguo,Ma Xiaotong,Lu Xiao,Chang Long,Zhang Wan
The modification with dark metallic oxide is identified as the crucial strategy to enhance optical absorptions of calcium-based materials for the direct solar-driven thermochemical energy storage. The effect of modification on the heat release behavior in carbonation of calcium-based material has been widely investigated, but its effect on the heat storage behavior in calcination is lacking of sufficient research, typically for low-cost calcium resource such as carbide slag. The Fe-modified and Mn-modified carbide slags for CaCO 3 /CaO heat storage were synthesized and their optimum decomposition temperatures, effective heat storage conversions, heat flows and heat storage rates in endothermic stage were investigated. Although the Fe modification exacerbates the CaO sintering due to the formation of Ca 2 Fe 2 O 5 , that is still effective in reducing the regeneration temperature of CaO in CaCO 3 /CaO cycles. The Mn modification enhances significantly sintering resistance by forming the CaMnO 3 and its transformation into Ca 2 MnO 4 . The effective heat storage conversion of Mn-modified carbide slag after 30 cycles is 3.2 times as high as that of untreated carbide slag. Mn-modified carbide slag exhibits the lowest regeneration temperature and the highest heat storage rate after cycles. The loose and stable porous structure of Mn-modified carbide slag contributes to its superior endothermic performance. Therefore, Mn-modified carbide slag seems to be the potential candidate for calcium looping thermochemical heat storage.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Advanced Research
·
2025
·
IF 13
Minyi Zhang,Qi Wang,Chen Li,Mengyao Chen,Chunhui Wang,Zikang Wang,Tao Xia,Chengqing Yi,Shuo Shi
Introduction Ion interference therapy has emerged as a promising new treatment for Osteosarcoma (OS). However, its efficacy is significantly restricted by inadequate hydrogen peroxide (H 2 O 2 ) under the complex tumor microenvironment (TME). Objectives This study aimed to supply sufficient H 2 O 2 to enhance tumor therapy efficacy and address the limitations associated with ion interference. Methods A hollow manganese dioxide (HMnO 2 ) nanoplatform loaded with calcium peroxide (CaO 2 ) (denoted as HMnO 2 @CaO 2 ) was evaluated for biosafety through hemolysis tests. The functionality of HMnO 2 @CaO 2 was further validated by quantitative real-time polymerase chain reaction (qRT-PCR) and cytometric analysis. Results Excessive Ca 2+ accumulation induces endoplasmic reticulum (ER) stress, enhances oxidative stress, and causes mitochondrial damage. Notably, Mn 2+ facilitates treatment monitoring through magnetic resonance imaging (MRI). Additionally, Mn 2+ -induced ferroptosis triggers an immune response that promotes the polarization of tumor-associated macrophages (TAMs), transforming the pro-tumoral M2 phenotype into the tumoricidal M1 phenotype, thereby enhancing the efficacy of immunotherapy. Conclusion In conclusion, HMnO 2 @CaO 2 nanoplatform enhances tumor therapy efficacy by overcoming ferroptosis limitations, inducing Ca 2+ overload, and boosting anti-tumor immunity. This strategy offers a promising approach to ion interference in the clinical translation of nanomedicines. Furthermore, it marks a significant advancement in osteosarcoma (OS) treatment and underscores the transformative potential of nanotechnology in medicine.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 3
·134
·
IF 5.4
Wu Jiayi,Li Chengwei,Zhao Jingwen,Liu Jiyang
A Mn-doped Fe 3 O 4 (Mn-Fe 3 O 4 ) nanozyme was synthesized using a one-step solvothermal method. Compared to pristine Fe 3 O 4 , Mn-Fe 3 O 4 exhibits unique oxidase (OXD)-like activity and enhanced peroxidase (POD)-like activity. The superior catalytic performance arises from the incorporated Mn species and the associated oxygen vacancies facilitate oxygen adsorption and activation, establishing an efficient self-cascade catalytic system. In this system, hydrogen peroxide (H 2 O 2 ) generated in-situ through OXD-like catalysis can trigger mimic-POD reactions. A dual-mode antioxidant detection platform was subsequently constructed using melatonin (MT) as a proof of concept, with 3,3’,5,5’-tetramethylbenzidine (TMB) serving as the substrate for the Mn-Fe 3 O 4 nanozyme. The colorimetric mode enables rapid visual screening by monitoring the oxidation of TMB to a blue-colored product, achieving a detection limit of 0.13 µM. The electrochemical mode features the novel utilization of mesoporous silica nanochannels for the selective enrichment of oxidized TMB (oxTMB), enabling highly sensitive quantification of MT with a detection limit as low as 0.6 nM. The assay applied to commercial tablets shows excellent recovery and reproducibility. This work combines engineered nanozymes with nanofilm-modified electrodes, offering an innovative approach for constructing advanced multimodal sensing systems. Graphical
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）