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Journal of Rare Earths 2025年第2期43卷 397-404页

作者： Mohsen Rabbani Joshua Werner Ario Fahimi Ehsan Vahidi department of Mining and metallurgical engineering Mackay School of Earth Sciences and EngineeringUniversity of Nevada department of Mining engineering University of Kentucky

This study developed a pilot-scale process feeding with two different materials resulting from a column leaching process and acid mine drainage（AMD） streams to recover rare earth elements（REEs）.A life cycle assessment（LCA） study was done to evaluate the environmental impacts of rare earth production from deleterious material in the form of highly contaminated leachate（HCL） and low-contaminated leachate（LCL）.The results indicate that the main contributors to environmental categories that produce RE-hydroxide stages are NaOH and ***,oxalic acid,Na2CO3,and hydrochloric acid significantly contribute to the production stage of individual rare earth oxides（REOs）,including solvent extraction（SX） and precipitation *** HCL route has higher environmental impacts than LCL due to higher chemical/energy and H2SO4usage,so 468 and 292 kg of carbon dioxide are generated to produce1 t of individual REOs from HCL and LCL routes,***,the carbon dioxide emitted from the process,including the RE-hydroxide production,SX,and REOs production,is less than 10 t CO2.A sensitivity analysis was also performed to assess the changeability of the environmental footprints of the main inputs in the SX process,as the main stage has a higher contribution to the whole *** LCA study is the first step toward understanding the environmental influence of new processing methods to produce REEs from coal by-products through a developed pilot-scale process.

关键词： Coal by-products Environmental impacts Life cycle assessment Precipitation Rare earth elements Rare earth oxide

Electrodeposited binder-free oxy-hydroxide nanostructures as promising electrocatalyst for hydrogen and oxygen evolution reactions

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Nano Research 2025年第2期18卷 11-63页

作者： Danial Iravani Ghasem Barati Darband Chemical engineering department Faculty of EngineeringFerdowsi University of Mashhad(FUM)*** MashhadIran materials and metallurgical engineering department Faculty of EngineeringFerdowsi University of Mashhad(FUM)*** MashhadIran

In recent years,extensiveresearch and development have been conducted on renewable energies to overcome the problems caused by fossil fuel *** the meantime,the production of hydrogen energy through electrochemical water spltting(EWS)has been limited by various challenges,such as high required ***,other methods of hydrogen production may lead to environmental problems,such as greenhouse gas *** electrocatalysts can significantly mitigate the EWS ***-hydroxide compoundspossess unique properties that make them effective electrocatalysts for the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).Additionally,the utilizationof the electrodeposition method,a binder-free technique,enables the production of electrodes exhibiting favorable electrocatalytic activity and *** review article provides an overview of the challenges associated with the EWS technique,highlighting the importance of transition metal oxy-hydroxide electrodes in facilitating the HER and OER ***,the paper evaluates the effectiveness of fabricated transition metal oxy-hydroxide electrodes through electrodeposition and suggests potential areas for future research on Ews.

关键词： electrochemical water splitting hydrogen evolution reaction oxygen evolution reaction electrodeposition oxy-hydroxides

Direct ink writing of nickel oxide-based thin films for room temperature gas detection

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Journal of Semiconductors 2025年第1期46卷 245-258页

作者： Neha Thakur Hari Murthy Sudha Arumugam Neethu Thomas Aarju Mathew Koshy Parasuraman Swaminathan department of Electronics and Communication engineering School of Engineering and TechnologyCHRIST UniversityKumbalagoduBengaluruKarnataka560074India department of metallurgical and materials engineering Indian Institute of Technology MadrasChennaiTamil Nadu600036India

The rapid industrial growth and increasing population have led to significant pollution and deterioration of the natural atmospheric *** atmospheric pollutants include NO_(2)and CO_(2).Hence,it is imperative to develop NO_(2)and CO_(2)sensors for ambient conditions,that can be used in indoor air quality monitoring,breath analysis,food spoilage detection,*** the present study,two thin film nanocomposite(nickel oxide-graphene and nickel oxide-silver nanowires)gas sensors are fabricated using direct ink *** nano-composites are investigated for their structural,optical,and electrical *** the nano-composite is deposited on the interdigitated electrode(IDE)pattern to form NO_(2)and CO_(2)*** deposited films are then exposed to NO_(2)and CO_(2)gases separately and their response and recovery times are determined using a custom-built gas sensing *** oxide-graphene provides a good response time and recovery time of 10 and 9 s,respectively for NO_(2),due to the higher electron affinity of graphene towards NO_(2).Nickel oxide-silver nanowire nano-composite is suited for CO_(2)gas because silver is an excellent electrocatalyst for CO_(2)by giving response and recovery times of 11 s *** is the first report showcasing NiO nano-composites for NO_(2)and CO_(2)sensing at room temperature.

关键词： nickel oxide graphene silver nanowires NO_(2) CO_(2) gas sensor

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Metallized polymer current collector as “stress acceptor” for stable micron-sized silicon anodes

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Journal of Energy Chemistry 2025年第2期101卷 786-794页

作者： Ziyi Cao Haoteng Sun Yi Zhang Lixia Yuan Yaqi Liao Haijin Ji Shuaipeng Hao Zhen Li Long Qie Yunhui Huang State Key Laboratory of material Processing and Die & Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology department of Chemistry Brown University

Micron-sized silicon（μSi） is a promising anode material for next-generation lithium-ion batteries due to its high specific capacity,low cost,and abundant ***,the volume expansion that occurs during cycling leads to the accumulation of undesirable stresses,resulting in pulverization of silicon microparticles and shortened lifespan of the ***,a composite film of Cu-PET-Cu is proposed as the current collector（CC） for μSi anodes to replace the conventional Cu ***-PET-Cu CC is prepared by depositing Cu on both sides of a polyethylene terephthalate（PET） *** PET layer promises good ductility of the film,permitting the Cu-PET-Cu CC to accommodate the volumetric changes of silicon microparticles and facilitates the stress release through ductile *** a result,the μSi electrode with Cu-PET-Cu CC retains a high specific capacity of 2181 mA h g-1,whereas the μSi electrode with Cu CC（μSi/Cu） exhibits a specific capacity of 1285 mA h g-1after 80 *** stress relieving effect of CuPET-Cu was demonstrated by in-situ fiber optic stress monitoring and multi-physics *** work proposes an effective stress relief strategy at the electrode level for the practical implementation of μSi anodes.

关键词： Electrode design Metallized polymer current collector Micron-sized Si anodes Stress relieving

Investigation of oxidative potential of fresh and O_(3)-aging PM_(2.5)from various emission sources across urban and rural regions

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Journal of Environmental Sciences 2025年第5期151卷 608-615页

作者： Shuaishuai Ma Dongsheng Cheng Yingying Tang Younuo Fan Qiong Li Chengxiang He Zhiqing Zhao Tianyou Xu College of Chemical and material engineering Quzhou UniversityQuzhou 324000China Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention Department of Environmental Science&EngineeringFudan UniversityShanghai 200433China

Inhalation of atmospheric PM_(2.5)can induce the generation of excessive reactive oxygen species(ROS)in human alveoli,triggering local and systemic inflammation,which can directly or indirectly result in respiratory and cardiovascular *** this study,we assessed the oxidative potential(OP)of fresh and O_(3)-aged PM_(2.5)particles from various urban and rural emission sources using the dithiothreitol(DTT)*** results revealed variations in the OP of fresh PM_(2.5)among different emission sources,with biomass burning sources exhibiting the highest OP,followed by industrial areas,vehicular emissions,cooking emissions,and suburban areas,***-soluble organics and transition metals might potentially exert significant influence on particle OP.O_(3)aging notably decreased the OP of PM_(2.5)particles,possibly due to the oxidation of highly DTT-active components into low redox-active small ***,the evolution of OP in different PM_(2.5)components,including methanol-soluble and insoluble fractions,exhibited distinct responses to O_(3)aging for source-oriented PM_(2.5).Additionally,differences in chemical composition between fresh and aged PM_(2.5)were further elucidated through measurements of component-dependent hygroscopic behaviors and phase *** study systematically delineates variances in the toxic potential of fresh and O_(3)-aged PM_(2.5)from various anthropogenic *** findings highlight the intrinsic compositional dependence of particle OP and provide essential insights for assessing the health effects of source-oriented PM_(2.5),as well as for formulating human health protection policies.

关键词： Atmospheric PM_(2.5) Oxidative potential Emission sources DTT assay O_(3)aging

Metal-organic frameworks (MOFs) in aqueous batteries (ABs):unlocking potential through innovative materials design

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Science China Chemistry 2025年

作者： Bo Han Erhai Hu Bei-Er Jia Ziyang Liu Shuen Tso Afriyanti Sumboja Ivandini T.Anggraningrum Anne Zulfia Syahrial Qingyu Yan SCARCE Laboratory Energy Research Institute NTU (ERIN) Nanyang Technological University School of materials Science and engineering Nanyang Technological University material Science and engineering Research Group Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung department of Chemistry University of Indonesia metallurgical & materials engineering department Fakultas Teknik Universitas Indonesia

Metal-organic frameworks (MOFs) represent a revolutionary class of materials in the field of energy storage,particularly for aqueous batteries (ABs).Distinguished by their large surface area,tuneable porosity,and adaptable chemical activity,MOFs offer significant advantages over conventional materials in battery *** article provides a thorough analysis of the crucial role that MOFs play in improving the efficiency of *** includes a concise review of the current research progress,emphasizing the fundamental processes by which MOFs enhance electrochemical ***,the review examines the synthesis and design strategies for the structure of MOFs to maximize ion transport,improve conductivity,and enhance *** structural advantages,chemical versatility,stability,durability and functionalization potential of MOFs are comprehensively ***,we explore the distinct advantages of MOFs in overcoming common challenges encountered in ABs,such as declining capacity,inadequate cycling stability,and limited energy *** paper also highlights the future research directions needed to fully harness their *** goal is to develop a fundamental understanding and stimulate further progress in the use of MOFs for advanced energy storage solutions.

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Damage analysis caused by ^(60)Co ions in functionally graded materials

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Defence Technology(防务技术) 2025年第2期44卷 248-256页

作者： Zübeyde Özkan Ugur Gökmen Sema Bilge Ocak department of Advanced Technologies Graduate School of Natural and Applied SciencesGazi UniversityAnkara06560Turkiye department of metallurgical and materials engineering Faculty of TechnologyGazi UniversityAnkara 06560Turkiye Basic and engineering Sciences Central Laboratory Application and Research Center Gazi UniversityAnkara 06560Turkiye

Functionally graded composite/hybrid materials(FGCM/FGHCM)were produced by adding B_(4)C,TiO_(2),and B_(4)C+TiO_(2)ceramic materials at various ratios(0-50%)into the AA6082 *** analysis of the damage caused by^(60) ions'(1.173-1.1332 MeV)on the material was examined using the SRIM/TRIM Monte Carlo simulation *** the simulation,the following data regarding the atoms of the target materials were obtained:ion distribution,target ionization,total displacements,surface binding energy,lattice binding energy,and displacement *** the studied four materials,the one with the highest ion range value was found to be AA6082 with ***_(2)was found to be the reinforcement material that reduced the ion range the most in the *** to its high binding energy,B_(4)C reinforced AA6082+(0-50%)B_(4)C FGCM was found to have the least vacancy with 4782/ion.

关键词： SRIM/TRIM Damage analysis AA6082 ^(60)Co ion

Phosphorus incorporation-induced adsorption behavior modulation for carbon cathodes enables ultrastable and high-energy aqueous Zn-ion hybrid capacitors

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Science China Chemistry 2025年第03期 900-907页

作者： Lai Yu Xiaoyue He Rong Liu Guanglin Wan Xinyi Ma Anqiang Pan Liang Shi Genqiang Zhang Hefei National Research Center for Physical Sciences at the Microscale CAS Key Laboratory of Material for Energy ConversionDepartment of Material Science and EngineeringUniversity of Science and Technology of China School of materials and engineering Xinjiang University

The aqueous zinc ions hybrid capacitors（ZHCs） have great potential for future energy storage devices by their high safety and low cost merits,more importantly,it could combine the advantages of batteries and supercapacitors with high energy density and power output,***,the development of reliable cathodes is still a challenge with the unsatisfactory cycling stability and limited reaction kinetic,severely restricting its further commercial ***,we present phosphorus functionalized nitrogen-doped hierarchical porous carbon nanosheets（PN-HPCNS）,where the P incorporation could effectively enhance the electronic transfer kinetics and ion adsorption capability to achieve superior zinc-ion storage *** asprepared PN-HPCNS cathode-based ZHC exhibits a high energy and power density(169.1 Wh kg–1/68 W kg–1,15,840 W kg–1/30.8 Wh kg–1) and long cycling lifespans more than 20,000 cycles with 92.0% capacity *** characterizations coupled with kinetics studies indicate that phosphorus modification is crucial to superior zinc ion storage,enabling PN-HPCNS with favorable reaction kinetics,promoting ion adsorption by providing more active ***,the theoretical calculation reveals that the phosphorus modification could enhance the adsorption ability,contributing to the superior ZHCs performance of PN-HPCNS.

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Introducing strong metal–oxygen bonds to suppress the Jahn-Teller effect and enhance the structural stability of Ni/Co-free Mn-based layered oxide cathodes for potassium-ion batteries

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Journal of Energy Chemistry 2025年第2期101卷 713-722页

作者： Yicheng Lin Shaohua Luo Pengyu Li Jun Cong Wei Zhao Lixiong Qian Qi Sun Shengxue Yan School of materials Science and engineering Northeastern University School of Resources and materials Northeastern University at Qinhuangdao Key Laboratory of Dielectric and Electrolyte Functional material Hebei Province

Mn-based layered oxides（KMO） have emerged as one of the promising low-cost cathodes for potassiumion batteries（PIBs）.However,due to the multiple-phase transitions and the distortion in the MnO6structure induced by the Jahn-Teller（JT） effect associated with Mn-ion,the cathode exhibits poor structural ***,we propose a strategy to enhance structural stability by introducing robust metal-oxygen（M-O） bonds,which can realize the pinning effect to constrain the distortion in the transition metal（TM） ***,all the elements employed have exceptionally high crustal *** a proof of concept,the designed K0.5Mn0.9Mg0.025Ti0.025Al0.05O2cathode exhibited a discharge capacity of approximately 100 mA h g-1at 20 mA g-1with 79% capacity retention over 50 cycles,and 73% capacity retention over 200 cycles at 200 mA g-1,showcased much better battery performance than the designed cathode with less robust M-O *** properties of the formed M-O bonds were investigated using theoretical *** enhanced dynamics,mitigated JT effect,and improved structural stability were elucidated through the in-situ X-ray diffractometer（XRD）,in-situ electrochemical impedance spectroscopy（EIS）(and distribution of relaxation times（DRT） method),and ex-situ X-ray absorption fine structure（XAFS） *** study holds substantial reference value for the future design of costeffective Mn-based layered cathodes for PIBs.

关键词： Jahn-Teller effect Layered oxide cathodes Low-cost Potassium-ion batteries Robust M–O bonds

Bioinspired Ultrasensitive Flexible Strain Sensors for Real‑Time Wireless Detection of Liquid Leakage

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Nano-Micro Letters 2025年第3期17卷 310-327页

作者： Weilong Zhou Yu Du Yingying Chen Congyuan Zhang Xiaowei Ning Heng Xie Ting Wu Jinlian Hu Jinping Qu Key Laboratory of material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of materials Science and engineering Wuhan Institute of TechnologyWuhan 430205People’s Republic of China department of Biomedical engineering City University of Hong KongHong KongSAR 999077People’s Republic of China

Liquid leakage of pipeline networks not only results in considerableresource wastage but also leads to environmental pollution and ecological *** response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) hasbeen developed using a combination of micro-extrusion compression molding andsurface modification for real-time wireless detection of liquid leakage. The TCGSutilizes the synergistic effects of Archimedean spiral crack arrays and micropores,which are inspired by the remarkable sensory capabilities of scorpions. This designachieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability bywithstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability indetecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositionswhile issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenariosin everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effectivesolution for the early wireless detection of liquid leakage.

关键词： Thermoplastic polyurethane Bioinspired Cracks Liquid leakage Flexible strain sensor

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