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RuTe2 heterophase homojunction induced built-in electric field drives ultrafast hydrogen evolution reaction kinetics

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Applied Catalysis B: Environmental 2025年 374卷

作者： Zhao, Hongyu Chen, Ding Dong, Yuxiao Chen, Yurao Jiao, Jixiang Yu, Jun Li, Yiwen Mu, Shichun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

Compared with conventional heterostructure catalysts, heterophase homojunction catalysts possess single chemical composition and homogeneous active centers, enhancing the catalytic activity, stability and selectivity. Furthermore, the creation of heterophase homojunction structures can induce the built-in electric field due to the work function (WF) difference between two phases, which promotes electron transfer and charge redistribution, optimizing the adsorption of active intermediates and ultimately enhancing the catalytic activity. Herein, based on the theoretical prediction, we construct a heterophase homojunction consisting of orthorhombic and cubic RuTe2 phases (m-RuTe2) through a temperature-modulated molten salt-assisted strategy. Such a RuTe2 structure demonstrates excellent hydrogen evolution reaction (HER) kinetics due to the charge-balancing effect, moderate Ru-Te orbital hybridization and optimal hydrogen adsorption capacity during alkaline HER processes. Additionally, the strong coupling of Ru-Te structural units prevents the demetallization and reconstruction behavior of Ru, ensuring the catalytic stability. Compared to single-phase RuTe2 (orthorhombic phase of RuTe2: 62.3 mV, cubic phase of RuTe2: 164.3 mV), m-RuTe2 requires only a 35 mV overpotential to drive a current density of 10 mA cm−2, and even exhibits a higher HER activity than Pt catalysts under alkaline conditions. Undoubtedly, the heterophase homojunction structure offers valuable insights into the rational design of high-performance catalysts. © 2025 Elsevier B.V.

关键词： Built-in electric field Heterophase homojunction Hydrogen evolution reaction Ruthenium-based catalysts Water electrolysis

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Weakly solvating electrolyte enabling solvent-free co-intercalation for stable potassium-ion storage in graphite

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Nano Research 2025年第3期18卷 234-242页

作者： Chaojie Cheng Wencong Feng Feiyue Wang Jingke Ren Deyang Guan Wei Chen Jean-Jacques Gaumet Kai Fu Xiaobin Liao Wen Luo State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Xinjiang UniversityUrumqi 830017China Laboratoire de Chimie et Physique:Approche Multi-échelles des Milieux Complexes(LCP-A2MC)Institut Jean BarriolUniversitéde LorraineMetz 57070France

Ether electrolytes for potassium-ion batteries exhibit a broader electrochemical window and greater applicability,yet most of them are high-concentration electrolytes with elevated *** this study,we propose the use of a weakly solvating cyclic ether electrolyte with tetrahydropyran(THP)as the *** approach induces the formation of a thin and dense inorganic-rich solid electrolyte interphase(SEI)film,which is accompanied by a decrease in the activation energy of electrode interfacial reactions due to the weak ligand binding of THP with K^(+).Density functional theory(DFT)simulations also corroborate the hypothesis that K^(+)has a lower binding energy with *** potassium storage process,the phenomenon of solvent co-intercalation of graphite does not occur,which greatly reduces the destruction of the graphite structure and enables a superior electrochemical performance and enhanced cycling stability at a lower concentration(2 M).At a current density of 0.2 C(55.8 mA·g^(-1)),the battery can be stably cycled for 800 cycles(approximately 8 months)with a specific capacity of 171.8 mAh·g^(-1).This study provides a new ether-based electrolyte for potassium ion batteries and effectively reduces the electrolyte cost,which is expected to inspire further development of energy storage batteries.

关键词： weakly solvating electrolyte co-intercalation graphite potassium ion batteries

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Role of NH4+/H3O+ on the Na+ storage performance for aqueous-synthesized Na3(VOPO4)2F cathode materials and their removal

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Journal of Energy Chemistry 2025年 107卷 612-621页

作者： Yang, Xiaoping Zhang, Yibo Wang, Xianshu Li, Wenjiao Yin, Xiangshao Yao, Jun Jiang, Weihong Duan, Jianguo Zhang, Yingjie Xu, Lin Wang, Ding National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Yunnan Kunming650093 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Hubei Wuhan430070 China Hubei Xiangyang441000 China Co. Ltd. High Technology Industrial Development Zone Henan Zhengzhou450001 China

The aqueous preparation of Na3(VOPO4)2F cathode material with low cost and good structural stability has attracted extensive attention for advancing sodium-ion batteries (SIBs). However, the inclusive heterogeneous cations incorporated into the material lattice, dominated by coordination chemistry, are always overlooked. Herein, the embroiled NH4+/H3O+ cations in the Na3(VOPO4)2F lattice have been first disclosed during aqueous co-precipitation. It involves the electrostatic interactions between hydrogen protons (NH4+/H3O+) and electronegative oxygen atoms (V=O and V–O–P groups), which induces the terrible Na+-storage performance, as demonstrated by multiple characterizations. Followingly, the very-facile operation, i.e. heat treatment, has been raised to remove NH4+/H3O+ cations and then achieved high-performance Na3(VOPO4)2F. Therefore, the Na3(VOPO4)2F||Na cell contributes to the significantly improved discharge capacity (129.7 mAh g−1) and voltage plateau from 3.63 to 3.87 V (vs. Na/Na+) at 0.2 C. The ultrahigh capacity retentions of 93.7% and 76.7% after 1000 and 3500 cycles at 1 and 20 C rates under 25 °C are harvested, respectively, as well as high/low-temperature performances and rate capability. Eventually, the as-assembled Na3(VOPO4)2F||hard carbon full-cell delivers excellent long-term cycling stability over 1000 cycles with 97.5% retention at 3 C. These emphasize the high-efficacy synthesis of Na3(VOPO4)2F and provide insights into the aqueous co-precipitation for the development of materials used in SIBs. © 2025 Science Press

关键词： Sodium-ion batteries

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Hemoglobin-decorated metal polyphenol network platform featuring antibacterial, antioxidant, and oxygen carrying properties for promoting infected diabetic wound healing

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International Journal of Biological Macromolecules 2025年第Pt 1期311卷 143695页

作者： Hu, Haonan Tan, Guitao He, Huan Zhang, Qinqin Tu, Jing State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan430070 China College of Resources and Environment Huazhong Agricultural University Wuhan430070 China

Chronic wounds have emerged as a formidable challenge in diabetes management, leading to high morbidity and mortality. The diabetic wound healing is often impaired due to recurrent bacterial infections, excessive reactive oxygen species (ROS), and severe hypoxia. Thus, we developed a multifunctional nanoplatform that exhibited remarkable antibacterial activity, ROS scavenging and oxygen-carrying properties. Metal-phenol network (MPN) as core material was synthesized by assembling tannic acid (TA) with Fe2⁺ via coordination and hydrophobic interactions. Subsequently, hemoglobin (Hb) was decorated onto MPN surface through cation-π interactions. MPN protected Hb against oxidation and preserved its physiological function, facilitating oxygen transport. Moreover, MPN-Hb displayed robust and broad-spectrum antioxidant activity that can effectively scavenge ROS and reactive nitrogen species. Under near-infrared (NIR) irradiation, MPN-Hb demonstrated excellent bactericidal activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), effectively eradicated biofilms through hyperthermia. In vivo studies have shown that MPN-Hb with good biocompatibility could effectively eliminate bacteria at the wound site, mitigate the inflammatory response, and promote collagen deposition and angiogenesis, thereby accelerating wound healing. Overall, this multifunctional nanoplatform offers a straightforward, safe, and efficient therapeutic strategy for treating chronic diabetic wounds. © 2025 Elsevier B.V.

关键词： Escherichia coli

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Regulating crystallization and retarding oxidation in Sn-Pb perovskite via 1D cation engineering for high performance all-perovskite tandem solar cells

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Journal of Energy Chemistry 2025年第1期100卷 646-652页

作者： Ranran Liu Xin Zheng Zaiwei Wang Miaomiao Zeng Chunxiang Lan Shaomin Yang Shangzhi Li Awen Wang Min Li Jing Guo Xuefei Weng Yaoguang Rong Xiong Li Michael Grätzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074HubeiChina Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina School of Chemistry Chemical Engineering and Life SciencesState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology430070HubeiChina Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO) Chinese Academy of SciencesSuzhou 215123JiangsuChina School of Physics and Optoelectronic Engineering Hainan UniversityHaikou 570228HainanChina

All-perovskite tandem solar cells have the potential to surpass the theoretical efficiency limit of single junction solar cells by reducing thermalization ***,the challenges encompass the oxidation of Sn^(2+)to Sn^(4+)and uncontrolled crystallization kinetics in Sn-Pb perovskites,leading to nonradiative recombination and compositional heterogeneity to decrease photovoltaic efficiency and operational ***,we introduced an ionic liquid additive,1-ethyl-3-methylimidazolium iodide (EMIMI) into Sn-Pb perovskite precursor to form low-dimensional Sn-rich/pure-Sn perovskites at grain boundaries,which mitigates oxidation of Sn^(2+)to Sn^(4+)and regulates the film-forming dynamics of Sn/Pb-based perovskite *** optimized single-junction Sn-Pb perovskite devices incorporating EMIMI achieved a high efficiency of 22.87%.Furthermore,combined with wide-bandgap perovskite sub-cells in tandem device,we demonstrate 2-terminal all-perovskite tandem solar cells with a power conversion efficiency of 28.34%,achieving improved operational stability.

关键词： All-perovskite tandem solar cells Sn-Pb perovskite 1D Regulated crystallization Antioxidation

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Trace of Atomically Dispersed Pd Enables Unprecedented Butadiene Semihydrogenation Performance Over Copper Catalyst

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ACS Catalysis 2025年第5期15卷 3810-3822页

作者： Zhao Wang Hao Yuan Jian Tao Shu-Lin Liu Ying Hong Zhi-Yi Hu Jian Zhang Bao-Lian Su The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University Xi’an Shaanxi 710000 P. R. China The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China；Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

Semihydrogenation plays a key role in industrial hydrorefining of light alkenes, with a market above 400 billion by 2027. The high cost of commercial palladium-based catalysts strongly calls for innovation but with great challenges. Herein, copper nanoparticles decorated with a minimized ppm of Pd are developed through a chemical plating process to integrate the catalytic advantages of copper and palladium for achieving maximized catalysis in the semihydrogenation of a fatal impurity of butadiene in alkene feedstocks. The developed Pd–Cu catalyst (i.e., 114 ppm of Pd in Pd0.0033Cu1/TiO2) exhibits an unprecedented catalytic performance superior to commercial Pd/Al2O3, with 100% butene selectivity above 90% of butadiene conversion over 130 h on stream at 90 °C. Further exploration reveals that the atomically dispersed Pd on Cu nanoparticles, obtained at ultralow ppm levels of Pd loading, induces a hidden but critical H2trap, which concentrates H2on the Pd site for further H2dissociation that offers intermediate hydrogen atoms to the tandem butadiene semihydrogenation over the third layer of Cu atoms neighboring Pd through hydrogen spillover. Moreover, a threshold on Pd density was identified at Pd/Cu surficial atomic ratio of 1/138 (i.e., Pd0.0033Cu1/TiO2) for maximizing butadiene semihydrogenation performance, based on an extreme collaboration between Pd for H2dissociation and Cu for butadiene hydrogenation. This work provides important guidance for developing noble metal-saving catalysts in industrial applications.

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Unveiling the top-down crystallization mechanism: Balancing diffusion and crystallization in vapor–solid reactions for efficient perovskite solar cells

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Journal of Energy Chemistry 2025年 108卷 263-271页

作者： Duan, Changyu Hu, Shenghan Dou, Yichen Deng, Xinyu Jiang, Xiongzhuang Peng, Yong Liang, Guijie Cheng, Yi-Bing Ku, Zhiliang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan430070 China Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices Hubei University of Arts and Science Hubei Xiangyang441053 China Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Guangdong Foshan528200 China

Vapor deposition is a promising technique for industrializing perovskite solar cells, but limited understanding of crystallization mechanisms in vapor-phase processes hampers progress. This study reveals a top-down crystallization growth mechanism during a two-step vapor–solid reaction and introduces an accelerated diffusion-buried homogeneous seed (AD-BHS) strategy. By utilizing the rapid diffusion of methylammonium chloride and inducing crystallization with buried seeds, we eliminate residual lead iodide, reduce crystallization time disparities across the film, and enhance uniformity. As a result, we achieve efficiencies of 22.40% for small-area (0.148 cm2) cells and 19.75% for large-area (10.0 cm2) modules, both representing state-of-the-art performance for vapor–solid reaction-based perovskite solar cells. This study provides critical insights into regulating crystallization growth in vapor-deposited perovskite thin films. © 2025 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences

关键词： Plasma CVD

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synthesis of highly sinterable MgO powders for IR transparent ceramics

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Ceramics International 2025年

作者： Zhi, Yongli Mei, Bingchu Li, Weiwei Cheng, Jing Luo, Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Jianghuai Advance Technology Center Hefei230000 China

MgO transparent ceramics (TCS) have attracted great interests in the field of infrared window materials due to its wide transmission range, excellent thermal conductivity, and balanced mechanical properties. To date, research on MgO transparent ceramics predominantly relies on commercial MgO powders by spark plasma sintering (SPS). Herein, we report highly sinterable MgO powders synthesized by co-precipitation method, which exhibits pure phase and particle size of 75 nm. When sintered at 950 °C under 45 MPa for 2 h by hot pressed (HP) method, the transmittance of the MgO ceramic sample with the thickness of 2 mm achieved 76.9 % at 0.4 μm and 88.3 % at 5 μm. These optical properties are comparable to or even superior to MgO TCS produced through SPS method. This work shows that the MgO particles synthesized via the co-precipitation method are suitable for producing high optical quality of MgO infrared (IR) transparent ceramics. © 2025

关键词： Thermal conductivity

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P2/P3 Biphasic layered oxide cathode enabled by additional electron-holes on oxygen for high-capacity sodium-ion batteries

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Journal of materials Science and technology 2025年 238卷 230-237页

作者： Mudassir, Hassan Muhammad Xie, Chenghao Xia, Fanjie Fang, Rui Chen, Qiushuang Liu, Zhaopei Dong, Tiancheng Liu, Fang Hu, Shan Jian, Zelang Wu, Jinsong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Wuhan430070 China

Layered transition metal (TM) oxides have gained significant attention for achieving high specific capacity and energy density utilizing the lattice oxygen redox for sodium-ion batteries. However, the highly oxidized lattice oxygen cannot be fully reduced due to irreversible structural deformation, phase transition, and sluggish kinetics. Herein, the Cobalt (Co) content was tuned to synthesize a P2/P3- biphasic layered oxide cathode Na0.72Li0.24Co0.12Mn0.64O2 (NLM-Co12%), which exhibits pronounced lattice oxygen activity, leading to exceptional capacity and improved cyclability with superior structural stability. The distinct honeycomb ordering induces highly delocalized π-type interactions that generate additional electron holes on oxygen, providing a record energy density and specific capacity of 767.98 Wh kg−1 and 287.19 mAh g−1, respectively. The strategic incorporation of Co in the TM layers mitigates the sluggish kinetics during the electrochemical reactions and improves the diffusion kinetics. The addition of electron holes on Oxygen (O) is comprehensively investigated through different electrochemical and state-of-the-art spectroscopic techniques. Furthermore, in situ-XRD reveals the phase transition during Na+ insertion/extraction is eliminated due to the synergistic effect of the P2/P3 biphasic structure achieving superior structural stability. Benefiting from the superstructure ordering and P2/P3 biphasic structure, the NLM-Co12% electrode demonstrates simultaneously high lattice-oxygen activity and excellent structural stability, thus resulting in remarkable energy density and specific capacity. © 2025

关键词： Sodium-ion batteries

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Fabrication and properties of textured ZnO-based varistor ceramics by alginate gelation and templated grain growth

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materials Letters 2025年 395卷

作者： Jie, Xi Zhou, Jian Liu, Guizhen Gu, Yang Feng, Zhiliang Zhao, Tengfei Ding, Zhongjun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China National Deep Sea Center Qingdao266237 China

This study proposes a novel and environment-friendly ceramic texturing method combining alginate gelation and ZnO-templated grain growth. Highly textured ZnO varistor ceramics (Lotgering factor 0.85) were achieved through shear-induced orientation alignment in aqueous alginate gels. The textured samples exhibited anisotropic breakdown voltages (293 V/mm in ⊥ direction vs. 185 V/mm in || direction), delivering an enhanced voltage gradient of 293 V/mm and a high nonlinear coefficient of 36, 58 % higher voltage gradient than isotropic counterparts, advancing environmentally friendly processing for grain boundary engineering. Results demonstrate that this method effectively improves the microstructure and electrical performance of ZnO varistor ceramics, providing essential support for developing high-performance ZnO varistors. © 2025 Elsevier B.V.

关键词： II-VI semiconductors

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