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Tris-based protic ionic liquids with multiple adsorption effects enabling excellent anti-wear and anti-corrosion performances

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Journal of Molecular Liquids 2025年 425卷

作者： Ge, Shanqin Chen, Long Li, Wei Cai, Qingzhao Gong, Genxiang Wu, Junhao Yu, Jinhong Nishimura, Kazuhito Jiang, Nan Cai, Tao School of Materials Science and Chemical Engineering Ningbo University Zhejiang Ningbo315211 China State Key Laboratory of Advanced Marine Materials Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China Advanced Nano-processing Engineering Lab Mechanical Engineering Kogakuin University Tokyo192-0015 Japan

Molecular additives have garnered widespread attention in the fields of lubrication and corrosion protection due to their designable interfacial film-forming efficiency. Herein, three protic ionic liquids (PILs) with the same cation but different anions have been designed and synthesized. Their physicochemical properties, tribological properties and anti-corrosion properties were systematically investigated. Results demonstrated that under dynamic steel-on-steel friction conditions, the PILs can maximally reduce the running-in period, friction coefficient, and wear rate by 90 %, 40 %, and 97 %, respectively, compared to the commercial ionic liquid, BMIMPF6. Under static copper corrosion conditions, the PILs efficiently adsorb onto the copper surface and formed a dense oxide layer on its surface, thus achieving excellent corrosion protection for the copper substrates. Molecular dynamics (MD) simulation results indicate that the exceptional lubricity of PILs is due to its ability to rapidly adsorb onto the metal surface through multiple interaction sites on both its anionic and cationic components, thereby reducing the running-in period and swiftly establishing a lubricating film. This study provides insights into the development of molecular additives featuring multiple adsorption sites, with potential applications in the fields of tribology and corrosion engineering. © 2025

关键词： Tribology

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Compatible matching and synergy operation optimization of hydrogen-electric hybrid energy storage system in DC microgrid

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Energy Conversion and Management: X 2025年 26卷

作者： Du, Banghua Peng, Yanyu Li, Yang Xie, Changjun Zhu, Shihao Zhu, Wenchao Yang, Yang You, Li Zhang, Leiqi Zhao, Bo Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China School of Automation Wuhan University of Technology Wuhan430070 China Department of Electrical Engineering Chalmers University of Technology Gothenburg41258 Sweden State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan430070 China State Grid Hubei Electric Power Research Institute Wuhan430077 China State Grid Zhejiang Electric Power Research Institute Hangzhou310014 China

Hydrogen energy storage (HES) systems could balanced source-load mismatches in DC microgrids. By combining HES with electrical energy storage (EES), the start-up delay and rapid degradation of HES under fluctuating inputs can be mitigated, enhancing system adaptability. However, without proper power allocation and operational optimization, system efficiency and the lifespan of HES and EES decrease. Accordingly, this paper proposes a compatible matching and synergy operation optimization for hydrogen-electric hybrid energy storage systems (H-E HESS). Firstly, Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN) is developed to decompose power fluctuation signals into frequency components, and the Hilbert transform calculates the energy value to determine high- and low-frequency dividing points. Next, a system power allocation strategy is formulated through the fast response of the EES to compensate for the delay in the start-up of the HES. A multi-objective optimization model is then developed to balance efficiency and lifespan, which is solved by the NSGA-III algorithm. Finally, case studies show that the proposed strategy improves efficiency by 17.95 % and 8.34 %, reduces degradation rates by 1 % and 0.71 %, and shortens system response time in 1 s, compared to Schemes I and II. The strategy's effectiveness is also validated through an experimental platform in a hydrogen-electric coupled DC microgrid demonstration project. © 2025 The Author(s)

关键词： Hydrogen storage

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Fabrication of physically multi-crosslinked sodium alginate/carboxylated-chitosan/attapulgite-base aerogel modified by polyethyleneimine for the efficient adsorption of organic dye and Cu(II) contaminants

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International Journal of Biological Macromolecules 2025年 312卷 144188页

作者： Zhang, Zongrui Sun, Jianjun Wei, Xianglong Bai, Guona Zhang, Wencai Xiang, Yixin Li, Mengqun Gao, Jiangang Wang, Xinyu School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu241000 China Far East Cable CO. Ltd. Yixing214257 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan430070 China

The simultaneous presence of heavy metal ions and organic dyes presents significant challenges for the wastewater treatment sector. In response to this pressing issue, a novel composite aerogel has been developed: polyethyleneimine-modified sodium alginate/carboxylated chitosan/attapulgite aerogels (ATP/CCS/SA-PEI), which effectively facilitates the concurrent removal of copper ions (Cu(II)), Congo red (CR), and methylene blue (MB) from aqueous solutions. Under optimal adsorption conditions, ATP/CCS/SA-PEI exhibits superior adsorption capacities for Cu(II), MB, and CR when compared to the unmodified raw materials at equivalent dosages, achieving maximum capacities of 228.24 mg/g for Cu(II), 206 mg/g for MB, and 290.13 mg/g for CR. Additionally, the presence of coexisting ions exerts a minor adverse effect on adsorption efficiency, indicating that the synthesized ATP/CCS/SA-PEI aerogels possess commendable environmental adaptability. Characterization techniques reveal that the primary mechanisms underlying adsorption involve electrostatic interactions, hydrogen bonding, coordination complex formation, and ion exchange synergies. Simultaneously, the ATP/CCS/SA-PEI aerogel exhibits significant reusability, retaining removal efficiencies of 53 % for MB and 48 % for Cu(II) after four sorption-desorption cycles. Consequently, the synthesized ATP/CCS/SA-PEI aerogel demonstrates considerable potential for the remediation of complex pollutants in wastewater, indicating its applicability across diverse industrial sectors. © 2025 Elsevier B.V.

关键词： Crosslinking

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A Cl-rich MXene interphase for a dendrite-free lithium metal anode

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Journal of Power Sources 2025年 647卷

作者： Gao, Qian-Yu Tian, Ya-Wen Zeng, Zhuo-Hang Wei, Mei-Tong Xia, Zi-Shuo Yang, Qing-Qing Deng, Zhao Li, Yu Su, Bao-Lian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Hubei Wuhan430070 China University of Namur 61 rue de Bruxelles NamurB-5000 Belgium

Lithium metal batteries (LMBs) are attracting increasing attention due to their high theoretical specific capacity. However, the dendrites and dead lithium (Li) formed on Li metal anodes (LMAs) seriously reduce the safety and cycling life of LMBs, hindering the further development. Here, Cl-rich MXene artificial solid electrolyte interphase (ASEI) is coated on the surface of LMAs (M-Li) to improve the cycling performance. The density functional theory (DFT) calculation indicates that the abundant Cl functional group provides sufficient lithiophilic sites, inducing uniform deposition and stripping of Li. In addition, Cl-rich MXene also functions in the formation of halide-rich SEI to regulate the transport of Li ions (Li+). The symmetric battery based on the M-Li anode exhibits low overpotential of 9 mV during the long cycling. The LFP//M-Li full battery maintains a high coulomb efficiency of more than 95 % at the high current density of 5 C. This work suggests that Cl-rich MXene based provides a promising strategy for dendrite-free LMAs in LMBs. © 2025 Elsevier B.V.

关键词： Lithium-ion batteries

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Local structural origin of relaxor antiferroelectric behavior in NaNbO3-based ceramics

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Chemical Engineering Journal 2025年 514卷

作者： Meng, Xiangyu Yuan, Liran Li, Dongxu Wang, Pengbin Guo, Qinghu Gan, Xiaoyan Yao, Zhonghua Liu, Hanxing Wu, Jinsong Zhang, Shujun Hao, Hua State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory Foshan528200 China Nanostructure Research Center Wuhan University of Technology Wuhan430070 China Institute for Superconducting and Electronic Materials Faculty of Engineering and Information Sciences University of Wollongong WollongongNSW2500 Australia

Relaxor-antiferroelectrics (relaxor-AFEs), known for their double polarization–electric field (P-E) hysteresis loops and relaxor characteristics, exhibit outstanding energy storage performance compared to other dielectric materials. However, the origins of their antiferroelectric-like behavior and relaxor features remain unclear due to their complex local structure. In this study, we designed relaxor-AFEs with a high degree of relaxor component and stable antiferroelectric behavior. The recoverable energy density (Wrec) of up to 4.6J/cm3 and energy efficiency of ∼ 79 % were achieved in a 0.76NaNbO3-0.16Na0.5Bi0.5TiO3-0.08CaTiO3 ceramic, demonstrating excellent thermal and frequency stability. The multiphase local polarization configuration was confirmed by atomic-resolution annular dark-field scanning transmission electron microscopy (ADF STEM). Additionally, integrated differential phase contrast (iDPC) images revealed an enhanced antiferrodistortion (AFD) induced by incorporating component with low tolerance factor, contributing to stable antiferroelectric behavior. The relationship between chemical heterogeneity, polarization configuration and energy storage performance was systematically established. This work provides insights into the structure origin and underlying mechanisms for relaxor-AFE performance, with potential implications to guide the development of advanced energy-storage dielectric materials. © 2025 Elsevier B.V.

关键词： Antiferroelectric materials

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Effects of Phosphorus Additions on Microwave Sintering Properties of Uitrafine WC-10Co Cemented Carbides

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Journal of Wuhan University of technology(materials Science) 2007年第4期22卷 725-727页

作者：全峰周建 State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology State Key Lab of Advanced Technology for Materials Synthesis and Processing Wohan University of Technology

Using the microwave sintering technology, the effects of phosphorus （P） additions on the microstructure and properties of the ultrafine WC-10Co alloys were investigated. The experimental results show that with only 0.3wt% P additions, full density WC-10Co cermets were obtained at temperature of 1250℃, which is 70 ℃ lower than that of the undoped counterparts. Lower sintering temperature can result in finer WC grain growth; therefore, the P-doped WC-10Co alloys exhibited higher hardness than the undoped ones. But at the same time, P doping could lead to sacrifice of fracture toughness ofWC-10Co cemented carbides.

关键词： microwave sintering cemented carbides ultrafine hardmetals phosphorus grain growth inhibitor

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Enhanced oxygen evolution reaction activity of iridium oxide supported on tantalum-doped tin oxide for acidic water electrolysis

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International Journal of Electrochemical Science 2025年第7期20卷

作者： Tian, Juanjuan Li, Shang Zhu, Zuobiao Tan, Jinting Pan, Mu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Luoshi Road 122# Wuhan 430070 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen China Hubei Key Laboratory of Fuel Cells Wuhan University of Technology Wuhan 430070 China

In the research process of proton exchange membrane electrolysis, Ir-based catalysts exhibit sluggish dynamics of reaction and the poor durability in strongly acidic medium, as well as the high cost greatly limit their commercialization. In this paper, in order to decrease the Ir amount and improve precious metal utilization, Ta-doped tin oxide (SnO₂) was prepared by sol-gel method in this paper as a support and loaded with iridium dioxide (IrO₂). The results indicate that the Ta doping increased conductivity of SnO₂ by two orders of magnitude and inhibited particle size growth. The introduction of 2Ta-SnO₂ supports improved the electric charge transfer dynamics during the catalytic reaction process, and the mass activity of the 40 wt% IrO₂/2Ta-SnO₂ catalyst reached 835.39 A g⁻¹ IrO₂, which was 3.6 times higher than that of commercial IrO₂. The overpotential of the 40 wt% IrO₂/2Ta-SnO₂ catalyst was 264 mV at a current density of 10 mA cm⁻², which is due to the prominent dispersion effect of the support as well as the interaction of the support surface with the active substance. Its stability is better than that of commercial IrO₂ in a stability test over 20,000 s. Therefore, Ta-doped SnO₂ supported IrO₂ catalysts have a promising application by reducing the cost of precious metal catalysts and enhancing the electrocatalytic properties of OER catalysts. © 2025 The Authors

关键词： Catalyst support OER catalyst Proton exchange membrane electrolysis Ta-doped SnO2

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Fuel Cell Performance Degradation Prediction Method Based on Hybrid Probabilistic Data-driven Model

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Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering 2025年第10期45卷 3892-3901页

作者： Guo, Bingxin Xie, Changjun Zhu, Wenchao Yang, Yang Du, Banghua Wuhan University of Technology Hubei Province Wuhan430000 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Province Wuhan430000 China

Accurately predicting the degradation characteristics of fuel cells can provide a solid basis for control and diagnosis decisions. However, mainstream data-driven methods often do not take into account uncertainty factors such as measurement errors caused by experimental conditions and the model's dependence on the data during the modeling phase. Therefore, only a single point estimate can be provided, resulting in a lack of sufficient credibility in the performance degradation results. This paper proposes a mixed-probability data-driven model (MPDD) that combines the characteristics of multiple data-driven models using Bayesian theory, which could quantify the uncertainty of the model's dependence on the data and provide prediction results for fuel cell performance degradation trends in both point estimates and interval estimates. Based on the full operating condition data in fuel cell dynamic load cycle (FC-DLC), the point estimate results of the MPDD model outperform those of a single data-driven model. Furthermore, based on the steady-state data in FC-DLC, the MPDD model achieves up to a 33% improvement in the concentration rate of interval estimates compared to Gaussian process regression (GPR). The prediction results indicate that this forecasting method possesses excellent uncertainty quantification capabilities and could provide more practical decision recommendations for the operation of electrohydrogen coupling devices. ©2025 *** ***.

关键词： Gaussian distribution

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Optimal design approach of interpenetrating pre-stressed metal-ceramic composites based on deep learning neural network

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Composite Structures 2025年 368卷

作者： Liu, Kun Lai, Xin Liu, Lisheng Zhang, Jinyong Liu, Yifei Hubei Longzhong Laboratory Wuhan University of Technology Demonstration Zone XiangYang537134 China Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China University of Rochester RochesterNY14527 United States

In this work, we proposed a new pre-stressed metal-ceramic interpenetrating structure to improve the apparent tensile strength of ceramic. In addition, an optimization design framework was constructed by integrating machine learning and gradient descent optimization algorithm for the optimization design of ceramic interpenetrating composites. The optimized metal-ceramic interpenetrating structure can achieve a balance of the stress state of the ceramic phase between intensity and distribution by ingeniously control the confinement and topology of the metal phase. More specifically, the surrogate model we constructed through deep neural network (DNN) can efficiently predict the relationship between the structure and its stress state. The final result obtained can achieve excellent pre-stress effect while making the structure lightweight. © 2025 Elsevier Ltd

关键词： Deep neural networks

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Ionic Liquid-Grafted Mxene Composite Polymer Electrolytes for High-Performance Solid-state Batteries

SSRN

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SSRN 2025年

作者： Li, Yu Qian, Zhi Qiu, Zhao-Dong Wang, Rui-Qing Wei, Mei-Tong Fei, An-Min Hu, Zhi-Yi Mohamed, Hemdan S.H. Chen, Li-Hua Su, Bao-Lian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Wuhan430070 China Physics Department Faculty of Science Fayoum University El Gomhoria Street Fayoum63514 Egypt University of Namur NamurB-5000 Belgium

All-solid-state batteries (ASSBs) have obtained much attention due to the high energy density and security. At present, PEO-based solid-state batteries are considered to be one of the most promising candidates for high-performance ASSBs due to the excellent processability and good interfacial stability. However, low ionic conductivity and Li+ transference number seriously hinder their progress in practical applications. Here, a novel filler is developed by embedding ionic liquid (IL) grafted onto the surface of MXene to improve the electrochemical performance of PEO-based solid composite polymer electrolyte (MXene-IL-SPE) for ASSBs. The 2D MXene can significantly reduce the crystallinity of PEO, and the presence of IL not only enhances the dispersion of MXene in the polymer matrix, but also promotes the dissociation of lithium salts and anchors anions. As a result, the MXene-IL-SPE possesses high ionic conductivity (7.19 × 10-4 S cm-1) and Li+ transference number (0.51), together with wide electrochemical window (5.2 V) at 60 °C. The assembled LiFePO4|MXene-IL-SPE|Li full cell exhibits remarkable rate capability and exceptional capacity of 154.8 mAh g-1 over 120 cycles with an impressive 95.3% capacity retention at 0.5 C. This design opens up a new way to prepare high performance CPEs for ASSBs. © 2025, The Authors. All rights reserved.

关键词： Solid-state Batteries

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