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Journal of Energy Chemistry 2025年第03期102卷 586-596页

作者： Tiancheng Wang Zehao Shi Furan Wang Weiya Li Guohong Kang Wei Liu Seung-Taek Myung Yongcheng Jin School of materials science and engineering Ocean University of China department of Nanotechnology & Advanced materials engineering Sejong University

In lithium-sulfur batteries（LSBs）,the limited utilization of sulfur and the sluggish kinetics of redox reaction significantly hinder their electrochemical performance,especially under high rates and high sulfur ***,we propose a novel separator structure with an interlayer composed of a vermiculite nanosheet combined with Ketjen Black（VMT@KB） for LSBs,facilitating efficient adsorption and rapid catalytic conversion toward lithium polysulfides（LiPSs）.The VMT@KB nanosheets with an electrical double-layer structure and electronic conductivity are obtained through a high-temperature peeling process and Li+exchange treatment in LiCl solution,followed by a mechanical combination process with *** results demonstrate that incorporating VMT@KB as an interlayer on a conventional separator enhances the conductivity and limits the LiPSs in the cathode *** Li-S cell with VMT@KB interlayer shows satisfactory cycle and rate performance,especially in high sulfur *** exhibits a remarkable initial discharge capacity of 1225 mAh g-1at 0.5 C and maintains a capacity of 816 mAh g-1after 500 ***,the discharge capacity remains 462 mAh g-1even at 6 ***,the cell with high sulfur loading(8.2 mg cm-2) enables stable cycling for 100 cycles at 0.1 C with a discharge capacity of over1000 mAh g-1.

关键词： Electrical double layer Li-S batteries Lithium polysulfides Modified separators Vermiculite

In-situ confocal microscopy study on dissolution kinetics of calcium aluminate inclusions in CaO-Al_(2)O_(3)-SiO_(2)type steelmaking slags

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Journal of Iron and Steel Research International 2025年第2期32卷 364-375页

作者： Guang Wang Muhammad Nabeel Wangzhong Mu A.B.Phillion Neslihan Dogan department of materials science and engineering McMaster UniversityHamiltonL8S4L7OntarioCanada department of materials science and engineering KTH Royal Institute of TechnologyStockholm10044Sweden engineering materials Department of Engineering Science and MathematicsLuleåUniversity of TechnologyLuleå97187Sweden department of materials science and engineering Delft University of TechnologyDelft2628CDThe Netherlands

Dissolution kinetics of CaO·2Al_(2)O_(3)(CA_(2))particles in a synthetic CaO-Al_(2)O_(3)-SiO_(2)steelmaking slag system have been investigated using the high-temperature confocal laser scanning *** of temperature(i.e.,1500,1550,and 1600℃)and slag composition on the dissolution time of CA_(2)particles are investigated,along with the time dependency of the projection area of the particle during the dissolution *** is found that the dissolution rate was enhanced by either an increase in temperature or a decrease in slag ***,a higher ratio of CaO/Al_(2)O_(3)(C/A)leads to an increased dissolution rate of CA_(2)particle at 1600℃.Thermodynamic calculations suggested the dissolution product,i.e.,melilite,formed on the surface of the CA_(2)particle during dissolution in slag with a C/A ratio of 3.8 at 1550℃.Scanning electron microscopy equipped with energy dispersive X-ray spectrometry analysis of as-quenched samples confirmed the dissolution path of CA_(2)particles in slags with C/A ratios of 1.8 and 3.8 as well as the melilite formed on the surface of CA_(2)*** formation of this layer during the dissolution process was identified as a hindrance,impeding the dissolution of CA_(2)particle.A valuable reference for designing or/and choosing the composition of top slag for clean steel production is provided,especially using calcium treatment during the secondary refining process.

关键词： In-situ observation Dissolution kinetics Confocal laser scanning microscope Calcium aluminate inclusion Steelmaking slag Clean steel

Advanced Bismuth-Based Anode materials for Efficient Potassium Storage:Structural Features,Storage Mechanisms and Modification Strategies

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Nano-Micro Letters 2025年第6期17卷 1-39页

作者： Yiye Tan Fanglan Mo Hongyan Li department of materials science and engineering College of Chemistry and Materials ScienceJinan UniversityGuangzhou 510632People’s Republic of China

Potassium-ion batteries(PIBs)are considered as a promising energy storage system owing to its abundant potassium *** an important part of the battery composition,anode materials play a vital role in the future development of ***-based anode materials demonstrate great potential for storing potassium ions(K^(+))due to their layered structure,high theoretical capacity based on the alloying reaction mechanism,and safe operating ***,the large radius of K^(+)inevitably induces severe volume expansion in depotassiation/potassiation,and the sluggish kinetics of K^(+)insertion/extraction limits its further ***,we summarize the strategies used to improve the potassium storage properties of various types of materials and introduce recent advances in the design and fabrication of favorable structural features of bismuth-based ***,this review analyzes the structure,working mechanism and advantages and disadvantages of various types of materials for potassium ***,based on this,the manuscript focuses on summarizing modification strategies including structural and morphological design,compositing with other materials,and electrolyte optimization,and elucidating the advantages of various modifications in enhancing the potassium storage ***,we outline the current challenges of bismuth-based materials in PIBs and put forward some prospects to be verified.

关键词： Bismuth-based materials Potassium-ion batteries Anode Potassium storage mechanism Modification strategies

Chloride-Ion Blocking in Seawater Electrolysis:Narrating the Tale of Likes and Dislikes Between Anode and Ions

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Energy & Environmental materials 2025年第01期8卷 259-276页

作者： Ashish Gaur Enkhtuvshin Enkhbayar Jatin Sharma Sungwook Mhin Hyuk Su Han department of Energy science Sungkyunkwan University Institute of Nano science and Technology department of Advanced materials engineering Kyonggi University

Seawater is the most abundant source of molecular *** the hydrogen reserves present in the seawater may inaugurate innovative strategies aimed at advancing sustainable energy and environmental preservation endeavors in the ***,there has been a surge in study in the field addressing the production of hydrogen through the electrochemical seawater splitting.

关键词： chloride ion blocking electrocatalysis Lewis acid oxygen evolution reaction seawater electrolysis

Freestanding lamellar nanoporous Ni-Co-Mn alloy:a highly active and stable 3D bifunctional electrode for high-current-density water splitting

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Rare Metals 2025年第1期44卷 275-287页

作者： Shao-Fei Zhang Lu-Yi Shi Jin Wang Yue Deng Zhi-Yuan Shen Hao Liu Jin-Feng Sun Tian-Tian Li Zhi-Jia Zhang Jian-Li Kang Hebei Key Laboratory of Flexible Functional materials School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050018China materials science and Technology Research department Ji Hua LaboratoryFoshan528000China School of materials science and engineering Tiangong UniversityTianjin300380China School of materials science and engineering Tianjin UniversityTianjin300387China

Retaining satisfactory electrocatalytic performance under high current density plays a crucial role in industrial water splitting but is still limited to the enormous energy loss because of insufficient exposure of active sites caused by the blocked mass/charge transportation at this ***,we present a freestanding lamellar nanoporous Ni-Co-Mn alloy electrode(Lnp-NCM)designed by a refined variant of the“dealloying-coarsening-dealloying”protocol for highly efficient bifunctional electrocatalyst,where large porous channels distribute on the surface and small porous channels at the *** its 3D lamellar architecture regulating,the electrocatalytic properties of the electrodes with different distances between lamellas are compared,and faster energy conversion kinetics is achieved with efficient bubble transport channels and abundant electroactive *** that the optimized sample(Lnp-NCM4)is expected to be a potential bifunctional electrocatalyst with low overpotentials of 258 and 439 mV at high current densities of 1000 and 900 mA·cm^(-2)for hydrogen and oxygen evolution reactions(HER and OER),*** overall water splitting in a two-electrode cell with Lnp-NCM4 as cathode and anode,it only needs an ultralow cell voltage of 1.75 V to produce 100 mA·cm^(-2)with remarkable long-term stability over 50 *** study on lamellar nanoporous electrode design approaches industrial water splitting requirements and paves a way for developing other catalytic systems.

关键词： Lamellar nanoporous structure Bifunctional electrode High current density Electrocatalysis

State-of-art of in situ observations of inclusion agglomeration at steel/Ar and steel/slag interfaces:a review of recent development on experimental and theoretical studies

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Journal of Iron and Steel Research International 2025年第2期32卷 315-333页

作者： Yi Wang Jian-xun Fu Deepoo Kumar Qiang Wang Hong-liang Yang Wang-zhong Mu Center for Advanced Solidification Technology(CAST) School of Materials Science and EngineeringShanghai UniversityShanghai200444China department of materials science and engineering KTH Royal Institute of TechnologyStockholm10044Sweden engineering materials Division of Materials ScienceDepartment of Engineering Science and MathematicsLuleåUniversity of TechnologyLuleå97187Sweden department of Metallurgical engineering and materials science IIT BombayPowaiMumbaiIndia Key Laboratory of Electromagnetic Processing of materials(Ministry of Education) Northeastern UniversityShenyang110819LiaoningChina ABB Metallurgy Västerås72136Sweden

Cleanliness control of advanced steels is of vital importance for quality control of the *** order to understand and control the inclusion removal during refining process in molten steel,its motion behaviors at the multiple steel/gas/slag interfaces have attracted the attention much of metallurgical *** recent development of the agglomeration of non-metallic inclusions at the steel/Ar and steel/slag interfaces has been summarized,and both the experimental as well as theoretical works have been *** terms of in situ observation of high-temperature interfacial phenomena in the molten steel,researchers utilized high-temperature confocal laser scanning microscopy to observe the movement of more types of inclusions at the interface,i.e.,the investigated inclusion is no longer limited to Al_(2)O_(3)-based inclusions but moves forward to rare earth oxides,MgO-based oxides,*** terms of theoretical models,especially the model of inclusions at the steel/slag interface,the recent development has overcome the limitations of the assumptions of Kralchevsky-Paunov model and verified the possible errors caused by the model assumptions by combining the water model and the physical *** but not least,the future work in this topic has been suggested,which could be in combination of thermal physical properties of steels and slag,as well as utilize the artificial intelligence-based methodology to implement a comprehensive inclusion motion behaviors during a comprehensive metallurgical process.

关键词： Inclusion movementSteel Ar interfaceSteel slag interfaceIn situ observation

Cascade degradation and electrocatalytic upcycling of waste poly(ethylene terephthalate)to valued products

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Nano Research 2025年第1期18卷 76-93页

作者： Xin Li Zirui Jiang Zongkui Kou John Wang Shiyou Zheng School of materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China School of materials science and engineering Wuhan University of TechnologyWuhan 430070China department of materials science and engineering National University of SingaporeSingapore 117574Singapore

The global annual production of poly(ethylene terephthalate)(PET)has reached 82 million tons,yet only a small fraction(less than 20%)is *** ultra-slow degradation rate of PET results in the accumulation of PET waste in the environment,causing serious plastic pollution and posing severe challenges to *** response,great efforts have been directed toward developing a cascade degradation and electrocatalytic upcycling strategy,which serves as a“waste-towealth”*** strategy involves electro-reforming PEThydrolyzed intermediates or using PET pyrolyzed products as electrocatalysts to generate high-value *** review provides an overview of the state-of-the-art strategies for the“degradation-electrocatalytic upcycling(De-eUp)”of PET ***,an introduction to the strategy is provided,categorizing it into two main frameworks:“pyrolysis-electrocatalytic upcycling”and“hydrolysis-electrocatalytic upcycling”.The section on“pyrolysis-electrocatalytic upcycling”delves into the degradation methods for designing derived carbon nanomaterials and their utilization as high-performance ***“hydrolysis-electrocatalytic upcycling”section discusses recent advancements in electro-reforming of PET hydrolyzed intermediates for the production of C_(1) and C_(2) *** review concludes by examining the challenges and future prospects in developing an efficient and economical PET upcycling *** is anticipated that this review will stimulate further progress in plastic waste valorization.

关键词： poly(ethylene terephthalate)waste electrocatalytic upcycling pyrolysis hydrolysis ethylene glycol oxidation reaction

In-Situ Pt-Decorated, Direct Growth of Mixed Phase 2H/1T–MoSe2 on Carbon Paper for Enhanced Hydrogen Evolution Reaction

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Energy & Environmental materials 2025年第2期8卷 187-195页

作者： Jong-Hwan Park Sun-Woo Kim So Young Lee Yuri Jung Jae-Chul Ro Seong-Ju Park Hyoung-Juhn Kim Dong Han Seo Su-Jeong Suh School of Advanced materials science and engineering Sungkyunkwan University Daegu Mechatronics & materials Institute Energy materials & Devices Department of Energy Engineering Korea Institute of Energy Technology KENTECH

Metal dichalcogenide-based 2D materials,gained considerable attention recently as a hydrogen evolution reaction（HER） *** this work,we synthesized MoSe2-based electrocatalyst via hydrothermal route with varying phase contents（1T/2H） and respective HER performances were evaluated under the acidic media（0.5 M H2SO4）,where best HER performance was obtained from the sample consisting of mixed 1T/2H phases,which was directly grown on a carbon paper(167 mV at10 mA cm-2) Furthermore,HER performance of electrocatalyst was further improved by in-situ electrodeposition of Pt nanoparticles（0.15 wt%） on the MoSe2 surface,which lead to significant enhancement in the HER performances(133 mV at 10 mA cm-2).Finally,we conducted density functional theory calculations to reveal the origin of such enhanced performances when the mixed 1T/2H phases were present,where phase boundary region（1T/2H heterojunction） act as a low energy pathway for H2adsorption and desorption via electron accumulation ***,presence of the Pt nanoparticles tunes the electronic states of the MoSe2based catalyst,resulting in the enhanced HER activity at heterointerface of 1T/2H MoSe2 while facilitating the hydrogen adsorption and desorption process providing a low energy pathway for *** results provide new insight on atomic level understanding of the MoSe2based catalyst for HER application.

关键词： 2D materials electrocatalysis HER mixed phase MoSe2

Construction of W1-Zn dinuclear sites to boost nitrite electroreduction to ammonia

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Journal of Energy Chemistry 2025年第03期102卷 302-308页

作者： Zhuohang Li Ying Zhang Xiang Li Ruizhi Liang Ye Tian Ke Chu School of materials science and engineering Lanzhou Jiaotong University department of Physics College of Science Hebei North University

Electroreduction of nitrite to ammonia（NO2RR） is recognized as an appealing method for achieving renewable NH3production and waste ***,monodispersed W-doped ZnO(W1-ZnO) is develo ped as an efficient NO2RR *** simulations and in situ spectroscopic measurements unravel that the enhanced NO2RR property of W1-ZnO originates from the creation of active W1-Zn dinuclear sites to selectively activate NO2-and enhance the protonation energetics of NO2-to-NH3pathway,whilst repelling the competing ***,W1-ZnO equipped in flow cell shows an impressive NO2RR performa nce with NH3yield rate of 970 μmol h-1cm-2and NH3-Faradaic efficiency of 94.5%.

关键词： Electrocatalytic NO2− reduction to NH3 In situ spectroscopy Single-atom catalysts Theoretical computations

Encapsulating perovskite quantum dots into 3D COF for visible light-driven CO2 reduction

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science China Chemistry 2025年第04期68卷 1478-1485页

作者： Xinxin Wang Yucheng Jin Xiya Yang Qingyu Luan Tianyu Wang Dongdong Qi Kang Wang Jianzhuang Jiang College of Chemistry and materials science Anhui Normal University Beijing Advanced Innovation Center for materials Genome engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology Beijing

Lead halide perovskite quantum dots（LHP QDs） have been revealed to possess great potential in photocatalytic applications including CO2reduction,which however suffer from poor ***,a high crystalline hydrazine-linked three-dimensional（3D） covalent organic framework,USTB-17,was fabricated from the reaction between 12-connected building block and 4-connected 3,5,7-tetrakis（4-aldophenyl）-***-modification with Ni2+affords the metallic framework USTB-17（Ni）followed by sequential deposition of the CH3NH2PbI3（MAPbI3） perovskite QDs into its pores,generating the USTB-17（Ni）@*** X-ray diffraction analysis together with theoretical simulations and transmission electron microscopy discloses the crystalline nature of USTB-17,USTB-17（Ni）,and USTB-17（Ni）@MAPbI3with an unprecedented noninterpenetrated hpt *** close contact of QDs inside the COF pores with the Ni catalytic site locating at the pore surface of COF allows a rapid transfer of the photogenerated electrons in QDs to the Ni catalytic sites,enhancing the photocatalytic activity for *** endows USTB-17（Ni）@MAPbI3with efficient photocatalysis performance for photocatalytic CO2reduction with CO generation rate of 365μmol g-1h-1and CO selectivity up to 96% under visible-light irradiation,7 times higher than that of USTB-17（Ni）.After four cycles of reactions,the photocatalytic CO generation rate remains almost unchanged,demonstrating its excellent cycle stability.

关键词： lead halide perovskite quantum dots 3D covalent organic frameworks hpt topology photocatalytic CO2 reduction