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A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang Song Xie Zi-meng Han Hao-Cheng liu Chong-Han Yin Wen-Bin Sun Zhang-Chi Ling Huai-Bin Yang De-Han Li Qing-Fang Guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

Ultrafast Fiber Laser Based on Tungsten Sulphoselenide Materials

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Chinese Physics Letters 2023年第12期40卷 46-50页

作者： Xiao-Chuan meng Lu Li Nai-Zhang Sun ze Xue Qi liu Han Ye Wen-Jun liu State Key Laboratory of Information Photonics and Optical Communications School of ScienceBeijing University of Posts and TelecommunicationsBeijing 100876China School of Science Xi'an University of Posts and TelecommunicationsXi'an 710121China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

Tungsten sulphoselenide(WSSe) alloys, belonging to the transition metal dichalcogenide family, have attracted significant interest in the area of optoelectronics because of their unique optical and electronic ***, there has been a dearth of sufficient research on the saturable absorption features and ultrafast lasers applications. Herein, we fabricated a WSSe-microfiber saturable absorber(SA) based on WSSe nanosheets prepared by liquid exfoliation technique. The SA provided a saturation intensity of a modulation depth of 27.95%and a nonsaturable loss of 21.34%. To investigate the potential applications of WSSe in ultrafast photonics, the prepared WSSe-microfiber was incorporated into an Er-doped fiber laser ring cavity. The results demonstrated that the WSSe-based SA successfully generated mode-locking laser pulses with a remarkably short pulse width of 231 fs. Furthermore, the output power of this ultrafast fiber laser reached an impressive value of 15.68 *** findings provide valuable views into the unique features of WSSe alloys in the areas of ultrafast optics and develop recipes for SA in ultrafast fiber lasers.

关键词： technique fiber absorber

Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic H2O2 synthesis coupled with biomass valorization

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Journal of Energy Chemistry 2025年第1期100卷 215-225页

作者： Jiaye Li Shuang Pan Yihuang Chen Qiong liu College of Chemistry and Materials Engineering Wenzhou University Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （H2O2） synthesis presents a green and costeffective production ***,achieving highly selective H2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for H2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H2O2coupled with biomass valorization.

关键词： Atomic economy Radical pathway regulation Rubidium atom coordination Biomass valorization

Preparation and applications of calcium ferrite as a functional material:A review

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 292-310页

作者： Xiuli Han Bowen Duan Lei liu Shilong Fang Weiwei Wang College of Mining Engineering North China University of Science and TechnologyTangshan 063210China Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral Resources of Hebei Province Tangshan 063210China Key Laboratory of Mining Development and Security Technology of Hebei Province Tangshan 063210China

Calcium ferrite(CF)is recognized as a potential green and efficient functional material because of its advantages of magnetism,electrochemistry,catalysis,and biocompatibility in the fields of materials chemistry,environmental engineering,and ***-fore,the obtained research results need to be systematically summarized,and new perspectives on CF and its composite materials need to be *** on the presented studies of CF and its composite materials,the types and structures of the crystal are *** addition,the current application technologies and theoretical mechanisms with various properties in different fields are ***,the various preparation methods of CF and its composite materials are elaborated in *** importantly,the advantages and disadvantages of the synthesis methods of CF and its composite materials are discussed,and the existing problems and emerging challenges in practical production are ***,the key future research directions of CF and its composite materials have been prospected from the potential application technologies to provide references for its synthesis and efficient utilization.

关键词： calcium ferrite mineral functional materials preparation application perspectives

Multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin liu Run Hou Chenghao Wu Ruishan Xie Shujun Chen College of Mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China Chongqing Research Institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAM),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAM deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

ROS-Responsive Berberine Polymeric Micelles Effectively Suppressed the Inflammation of Rheumatoid Arthritis by Targeting Mitochondria

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Nano-Micro Letters 2020年第6期12卷 138-151页

作者： Xing-xing Fan meng-ze Xu Elaine Lai-Han Leung Cai Jun Zhen Yuan Liang liu State Key Laboratory of Quality Research in Chinese Medicine Macao Institute For Applied Research in Medicine and HealthMacao University of Science and TechnologyAvenida Wai LongTaipaMacao SARChina Faculty of Health Sciences University of MacaoTaipaMacao SARChina

Rheumatoid arthritis(RA)is an autoimmune disease,which attacks human joint system and causes lifelong inflammatory *** date,no cure is available for RA and even the ratio of achieving remission is very ***,to enhance the efficacy of RA treatment,it is essential to develop novel approaches specifically targeting pathological *** this study,we discovered that RA synovial fibroblasts exhibited higher reactive oxygen species(ROS)and mitochondrial superoxide level,which were adopted to develop ROS-responsive nano-medicines in inflammatory microenvironment for enhanced RA treatment.A selenocystamine-based polymer was synthesized as a ROS-responsive carrier nanoplatform,and berberine serves as a tool *** assembling,ROS-responsive berberine polymeric micelles were fabricated,which remarkably increased the uptake of berberine in RA fibroblast and improved in vitro and in vivo efficacy ten times ***,the anti-RA effect of micelles was blocked by the co-treatment of AMPK inhibitor or palmitic acid,indicating that the mechanism of micelles was carried out through targeting mitochondrial,suppressing lipogenesis and finally inhibiting cellular *** together,our ROS-responsive nano-medicines represent an effective way of preferentially releasing prodrug at the inflammatory microenvironment and improving RA therapeutic efficacy.

关键词： Rheumatoid arthritis Reactive oxygen species Nanoparticles Berberine Oxygen consumption rate

Comparative study on interaction between rare earth oxide refractories and rare earth treated steel

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Journal of Iron and Steel Research International 2024年第6期31卷 1493-1501页

作者： ze meng Guang-qiang Li Cheng Yuan Yi-jiang Zhao Qing Zheng Bin zeng Yu liu The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina Technical Center Lianyuan Iron and Steel Co.Ltd.Loudi417009HunanChina

Refractories have an important effect on the cleanliness of molten *** interaction between CeAlO_(3) refractories and Ce treated steel was explored and compared with that between Al_(2)O_(3) refractories and Ce treated *** results show that the Ce content in steel decreases sharply after contact with Al_(2)O_(3) refractories and the pick-up of dissolved Al *** with the test of Al_(2)O_(3) refractories,the loss of Ce content is less in the test of CeAlO_(3) refractory,and the total oxygen content and dissolved Al content in steel increase *** dense and continuous Ce_(2)O_(2)S interface layer is observed at the CeAlO_(3) refractories/steel interface,which can serve as the metallurgical isolation layer and hinder the further interaction between refractories and ***,the higher steel cleanliness and less penetration of refractories by molten steel are obtained in the test of CeAlO_(3) *** CeAlO_(3) refractories show a promising prospect in the production of clean Ce treated steel.

关键词： CeAlO_(3)refractory Steel Cleanliness Interaction Rare earth

Sorption of aromatic organophosphate flame thermally and hydrothermally produced retardants on biochars

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Frontiers of Environmental Science & Engineering 2020年第3期14卷 75-87页

作者： Ziwen Du Chuyi Huang Jiaqi meng Yaru Yuan ze Yin Li Feng Yongze liu Liqiu Zhang Beijing Key Laboratory for Source Control Technology of Water Pollution Engineering Research Center for Water Pollution Source Control and Eco-remediationBeijing Forestry UniversityBeijing 100083China College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China

Aromatic organophosphate flame retardant(OPFR)pollutants and biochars are commonly present and continually released into soils due to their increasingly wide *** this study,for the first time,the sorption of OPFRs on biochars was *** triphenyl phosphate(TPhP)and triphenylphosphine oxide(TPPO)have similar molecular structures and sizes,TPhP exhibited much faster and higher sorption than TPPO due to its stronger hydrophobicity,suggesting the dominant role of hydrophobic interactions in TPhP ***π-πelectron donor-acceptor(EDA)interactions also contributed to the sorption process,as suggested by the negative correlation between the sorption capacity of the aromatic OPFRs and the aromatic index(H/C atomic ratios)of *** functional theory calculations further showed that one benzene ring of aromatic OPFRs has no electrons,which may interact with biochar viaπ-πEDA *** electrostatic attraction between the protonated P=O in OPFRs and the negatively charged biochar was found to occur at pH below *** work provides insights into the sorption behaviors and mechanisms of aromatic OPFRs by biochars.

关键词： Organophosphate flame retardants Hydrochar Pyrochar Adsorption Emerging contaminants Biochar

止血带在导航系统下行全膝关节置换的应用时机选择:一项单中心、回顾性分析

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中国组织工程研究 2025年第15期29卷 3159-3164页

作者：潘浩杨梦刘国强河北省沧州中西医结合医院河北省中西医结合骨关节病研究重点实验室河北省沧州市061000

背景:传统全膝关节置换过程中应用止血带的时机已有明确报道,随着关节相关技术不断精进,导航系统下全膝关节置换应用止血带的时机却鲜有报道。目的:评估采用全程与半程止血带对Brainlab导航系统下行全膝关节置换疗效的影响。方法:回顾... 详细信息

背景:传统全膝关节置换过程中应用止血带的时机已有明确报道,随着关节相关技术不断精进,导航系统下全膝关节置换应用止血带的时机却鲜有报道。目的:评估采用全程与半程止血带对Brainlab导航系统下行全膝关节置换疗效的影响。方法:回顾性分析2022年1-12月在河北省沧州中西医结合医院行导航系统下全膝关节置换患者的资料,选择符合条件的145例患者进行分析,按松开止血带时机分为全程组(n=71)和半程组(n=74)。收集患者一般资料、围术期情况、术后膝关节周围肿胀情况、下肢深静脉血栓发生情况、目测类比评分、美国特种外科医院膝关节评分和关节遗忘评分,评估膝关节功能并进行比较。结果与结论:①与半程组相比,全程组患者的手术时间更短、下肢深静脉血栓发生率更高、术后膝关节肿胀情况更重(P0.05);④提示采用导航系统行全膝关节置换的患者中,半程使用止血带隐匿性失血量少、术后患肢肿胀程度及下肢深静脉血栓发生率低,膝关节功能恢复更快。

关键词：导航系统全膝关节置换止血带膝关节功能关节遗忘评分