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Recent advances and perspectives in MXene-based cathodes for aqueous zinc-ion batteries

International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1752-1765页

作者： Aiduo Wu Tianhao Wang Long Zhang Chen Chen Qiaomin Li xuanhui qu Yongchang Liu Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyState Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China School of Economics and Management University of Science and Technology BeijingBeijing 100083China

Aqueous zinc-ion batteries(AZIBs)show great potential for applications in grid-scale energy storage,given their intrinsic safety,cost effectiveness,environmental friendliness,and impressive electrochemical ***,strong electrostatic interactions exist between zinc ions and host materials,and they hinder the development of advanced cathode materials for efficient,rapid,and stable Zn-ion *** and their derivatives possess a large interlayer spacing,excellent hydrophilicity,outstanding electronic conductivity,and high redox *** materials are considered“rising star”cathode candidates for *** comprehensive review discusses recent advances in MXenes as AZIB cathodes from the perspectives of crystal structure,Zn-storage mechanism,surface modification,interlayer engineering,and conductive network design to elucidate the correlations among their composition,structure,and electrochemical *** work also outlines the remaining challenges faced by MXenes for aqueous Zn-ion storage,such as the urgent need for improved toxic preparation methods,exploration of potential novel MXene cathodes,and suppression of layered MXene restacking upon cycling,and introduces the prospects of MXene-based cathode materials for high-performance AZIBs.

关键词： aqueous zinc-ion batteries MXenes terminal groups interlayer engineering conductive network design

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Synergistic improvement of strength and ductility via doping cerium into PH13-8Mo stainless steel by laser powder b e d fusion

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Journal of Materials Science & Technology 2024年第7期174卷 106-119页

作者： Chang Liu Jianxiong Liang Changjun Wang Gang Chen xuanhui qu Yu Liu Zhenbao Liu Mengxing Zhang Central Iron&Steel Research Institute Company Limited Beijing 100081China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China

In this study,the PH13-8Mo stainless steel parts doped without and with cerium(Ce)were fabricated via laser powder bed fusion followed by post-heat treatment,and systematically compared in terms of microstructure,phase constituent,and tensile *** comparative results show that doping Ce-modified grains with the equiaxed morphology and finer size,increased the mechanical stability of austenite,and enhanced the sphericity of oxide inclusion in the resultant ***,the coherency between the newly-formed CeAlO 3 inclusion and matrix was effectively im proved after doping Ce,as compared to the original aluminum oxide inclusion without doping *** resultant PH13-8Mo parts doped with Ce yielded an ultimate tensile strength of 1446±20 MPa with a fracture elongation of 16.0%±1.5%,for the first time meeting the AMS 5629E H1000 standard for the PH13-8Mo made by additive manufacturing(AM).The enhanced strength results from the strengthening effects of nanoscale precipitation(inclusion)and grain ***,the ductilizing mechanism can be attributed to the enhanced inclusion sphericity and ameliorative coherency between the inclusion and matrix,and improved misorientation angle of grain boundary owing to the modification by Ce,which efficiently re-duced the stress concentration and enhanced cracking resistance during ***,doping rare earth elements presents a promising pathway to synergistically improve the strength and ductility of stainless steels by AM.

关键词： Stainless steel Additive manufacturing Rare earth Precipitation Tensile properties

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"Win-Win"Scenario of High Energy Density and Long Cycling Life in a Novel Na_(3.9)MnCr_(0.9)Zr_(0.1)(PO_(4))_(3)Cathode

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Energy & Environmental Materials 2024年第1期7卷 83-90页

作者： Yao Wang Yukun Liu Pingge He Junteng Jin Xudong Zhao Qiuyu Shen Jie Li xuanhui qu Yongchang Liu Lifang Jiao Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsInstitute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 10083China Department of Chemistry and Biochemistry University of California1156 High StreetSanta CruzCA 95064USA Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

The development of high-energy and long-lifespan NASICON-type cathode materials for sodium-ion batteries has always been a research hotspot but a daunting *** Na_(4)MnCr(PO_(4))_(3)has emerged as one of the most promising high-energy-density cathode materials owing to its three-electron reactions,it still suffers from serious structural distortion upon repetitive charge/discharge processes caused by the Jahn-Teller active Mn^(3+).Herein,the selective substitution of Cr by Zr in Na_(4)MnCr(PO_(4))_(3)was explored to enhance the structural stability,due to the pinning effect of Zr ions and the≈2.9-electron reactions,as-prepared Na_(3.9)MnCr_(0.9)Zr_(0.1)(PO_(4))_(3)/C delivers a high capacity retention of 85.94%over 500 cycles at 5 C and an ultrahigh capacity of 156.4 mAh g^(-1)at 0.1 C,enabling the stable energy output as high as 555.2 Wh kg^(-1).Moreover,during the whole charge/discharge process,a small volume change of only 6.7%was verified by in situ X-ray diffraction,and the reversible reactions of Cr^(3+)/Cr^(4+),Mn^(3+)/Mn^(4+),and Mn^(2+)/Mn^(3+)redox couples were identified via ex situ X-ray photoelectron spectroscopy *** intermittent titration technique tests and density functional theory calculations further demonstrated the fast reaction kinetics of the Na_(3.9)MnCr_(0.9)Zr_(0.1)(PO_(4))_(3)/C *** work offers new opportunities for designing high-energy and high-stability NASICON cathodes by ion doping.

关键词： high energy density mechanism investigation NASICON-type cathodes sodium-ion batteries structure modification

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Structure characterization of the oxide film on FGH96 superalloy powders with various oxidation degrees

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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2037-2047页

作者： Yang Liu Yufeng Liu Sha Zhang Lin Zhang Peng Zhang Shaorong Zhang Na Liu Zhou Li xuanhui qu Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Science and Technology on Advanced High Temperature Structural Materials Laboratory AECC Beijing Institute of Aeronautical MaterialsBeijing 100095China

The structure of the oxide film on FGH96 alloy powders significantly influences the mechanical properties of *** this study,FGH96 alloy powders with various oxygen contents were investigated using high-resolution transmission electron microscopy and atomic probe technology to elucidate the structure evolution of the oxide *** dispersive spectrometer analysis revealed the presence of two distinct components in the oxide film of the alloy powders:amorphous oxide layer covering the γ matrix and amorphous oxide particles above the *** alloying elements within the oxide layer showed a laminated distribution,with Ni,Co,Cr,and Al/Ti,which was attributed to the decreasing oxygen equilibrium pressure as oxygen diffused from the surface into the γ *** the other hand,Ti enrichment was observed in the oxide particles caused by the oxidation and decomposition of the carbide *** analysis of the oxide film with oxygen contents of 140,280,and 340 ppm showed similar element distributions,while the thickness of the oxide film varies approximately at 9,14,and 30 nm,*** findings provide valuable insights into the structural analysis of the oxide film on FGH96 alloy powders.

关键词： Ni-based superalloys surface structure oxide layer thickness oxidation behavior element distribution

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Unveiling the cellular microstructure-property relations in martensitic stainless steel via laser powder bed fusion

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International Journal of Minerals,Metallurgy and Materials 2024年第11期31卷 2476-2487页

作者： Lingzhi Wu Cong Zhang Dil Faraz Khan Ruijie Zhang Yongwei Wang Xue Jiang Haiqing Yin xuanhui qu Geng Liu Jie Su Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China Department of Physics University of Science and Technology BannuBannu 28100Pakistan Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Institute for Special Steel Research Central Iron and Steel Research InstituteBeijing 100081China

Laser powder bed fusion(LPBF)is a widely recognized additive manufacturing technology that can fabricate complex components rapidly through layer-by-layer ***,there is a paucity of research on the effect of laser scanning speed on the cellular microstructure and mechanical properties of martensitic stainless *** study systematically investigated the influence of laser scanning speed on the cellular microstructure and mechanical properties of a developed Fe11Cr8Ni5Co3Mo martensitic stainless steel produced by *** results show that increasing the laser scanning speed from 400 to 1000 mm/s does not lead to a noticeable change in the phase fraction,but it reduces the average size of the cellular microstructure from 0.60 to 0.35μ*** scanning speeds of 400 and 1000 mm/s both had adverse effects on performances of sample,resulting in inadequate fusion and keyhole defects *** optimal scanning speed for fabricating samples was determined to be 800 mm/s,which obtained the highest room temperature tensile strength and elongation,with the ultimate tensile strength measured at(1088.3±2.0)MPa and the elongation of(16.76±0.10)%.Furthermore,the mechanism of the evolution of surface morphology,defects,and energy input were clarified,and the relationship between cellular microstructure size and mechanical properties was also established.

关键词： laser powder bed fusion martensitic stainless steel cellular microstructure mechanical properties strengthening mechanism

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High-throughput preparation for alloy composition design in additive manufacturing:A comprehensive review

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Materials Genome Engineering Advances 2024年第3期2卷 1-17页

作者： Min Liu Chenxu Lei Yongxiang Wang Baicheng Zhang xuanhui qu Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijingChina Beijing Laboratory of Metallic Materials and Processing for Modern Transportation BeijingChina

Additive Manufacturing(AM)is revolutionizing aerospace,transportation,and biomedical sectors with its potential to create complex ***,the metallic materials currently used in AM are not intended for high-energy beam processes,suggesting performance *** development of materials for AM still faces challenge because of the inefficient trial-and-error conventional *** review examines the challenges and current state of materials including aluminum alloys,titanium alloys,superalloys,and high-entropy alloys(HEA)in AM,and summarizes the high-throughput methods in alloy development for *** addition,the advantages of high-throughput preparation technology in improving the properties and optimizing the microstructure mechanism of major additive manufacturing alloys are *** article concludes by emphasizing the importance of high-throughput techniques in pushing the boundaries of AM materials development,pointing toward a future of more effective and innovative material solutions.

关键词： additive manufacturing Al alloy alloy composition high-entropy alloy high-throughput superalloy Ti alloy

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基于选区激光熔化镍基单晶高温合金的修复

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中国有色金属学报 2024年第4期34卷 1376-1392页

作者：张宇沈超张鹏章林曲选辉北京科技大学新材料技术研究院北京100083 北京科技大学北京材料基因组高精尖创新中心北京100083 辽宁材料实验室材料智能技术研究所沈阳110000

选区激光熔化技术光斑和热影响区小,成形精度高,可对镍基单晶高温合金叶片进行有效的修复以延长使用寿命。本工作选用了一种具有中等体积分数γ′相的合金粉末,研究了在单晶CM247LC基板上进行外延生长过程中该合金粉末的显微组织演变规... 详细信息

选区激光熔化技术光斑和热影响区小,成形精度高,可对镍基单晶高温合金叶片进行有效的修复以延长使用寿命。本工作选用了一种具有中等体积分数γ′相的合金粉末,研究了在单晶CM247LC基板上进行外延生长过程中该合金粉末的显微组织演变规律以及力学性能。结果表明:修复界面的熔池宽深比大于4时,沉积区与基体能形成良好的结合界面以及较小的晶粒取向差。通过增大扫描速率和降低激光功率可以有效减小沉积区裂纹密度,沉积组织以沿沉积方向生长的柱状枝晶为主,沉积层越高,冷却速率越小,枝晶间距和晶粒取向差越大。通过打印参数优化,最终得到了裂纹密度低、晶粒取向单一、且与单晶基板结合优异的镍基单晶高温合金沉积层,其抗拉强度为1094 MPa,伸长率为21%。

关键词：镍基单晶高温合金选区激光熔化显微组织晶粒取向力学性能

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碳包覆空心硅氧化物负极材料的制备及性能研究

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矿冶工程 2024年第4期44卷 67-71,80页

作者：何冬林孙森李平曲选辉北京科技大学新材料技术研究院北京100083 电子科技大学材料与能源学院四川成都611731 蜀道投资集团有限责任公司四川成都610095

以正硅酸四乙酯为硅源、十六烷基三甲基溴化铵为表面活性剂及造孔剂,采用改进的stöber法及碳热还原法制备了碳包覆的介孔空心硅氧化物负极材料。结果表明:乙醇与水体积比变化对SiO_(x)纳米球粒度、形貌及性能有重要影响;乙醇与水体积比... 详细信息

以正硅酸四乙酯为硅源、十六烷基三甲基溴化铵为表面活性剂及造孔剂,采用改进的stöber法及碳热还原法制备了碳包覆的介孔空心硅氧化物负极材料。结果表明:乙醇与水体积比变化对SiO_(x)纳米球粒度、形貌及性能有重要影响;乙醇与水体积比小,材料球形度差,呈椭圆形;乙醇与水体积比增大,纳米材料尺寸增加;乙醇与水体积比0.45时所得SiO_(x)纳米球粒径300 nm左右,以该纳米球组装的扣式电池在电流密度100 mA/g下循环200次后可逆比容量为813 mAh/g,在500 mA/g下循环1200次后可逆比容量为704 mAh/g,容量保持率为82%,每次容量衰减率仅0.015%。

关键词：硅氧化物负极材料空心结构碳包覆纳米球

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Ti–Mn系储氢合金的研究进展

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硅酸盐学报 2024年第6期52卷 1873-1883页

作者：张贺林繁鑫刘勇缪国栋王振刘春荣李平曲选辉北京科技大学新材料技术研究院北京100083

Ti-Mn系储氢合金在常温下能快速可逆吸放超过1.8%(质量分数)的氢气,且具有良好的循环稳定性和较低的成本,成为最具前景的储氢合金之一,但其较高的平台压不利于大规模应用。本文综述了近年来Ti-Mn系储氢合金的研究进展,总结了取代元素的... 详细信息

Ti-Mn系储氢合金在常温下能快速可逆吸放超过1.8%(质量分数)的氢气,且具有良好的循环稳定性和较低的成本,成为最具前景的储氢合金之一,但其较高的平台压不利于大规模应用。本文综述了近年来Ti-Mn系储氢合金的研究进展,总结了取代元素的半径对Ti-Mn系储氢合金晶体结构的影响,讨论了氧含量、元素取代和制备工艺对材料储氢性能的影响,阐述了微观缺陷-循环稳定性的关联机制,并对Ti-Mn系储氢合金在储氢罐领域的突破性应用进行了综述。最后提出未来的研究重点将集中于工艺改进和机理分析。

关键词： Ti–Mn系储氢合金吸放氢反应机理储氢性能储氢罐

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Effects of oxygen and carbon on the magnetic properties and microstructure of Sm_2Co_(17) permanent magnets

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Rare Metals 2007年第4期26卷 299-304页

作者： TIAN Jianjun ZHANG Shengen qu xuanhui School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

The research on the sintered Sm2Co17 permanent magnets prepared by metal injection molding is still at the exploratory stage. Carbon and oxygen are two key factors that influence the magnetic properties. In this article, the effects of oxygen and carbon on the properties and microstructure of the magnets have been studied. The results indicate that oxygen consumes the effective Sm content of the magnets and forms Sm2O3-the non-magnetism phase, which result in the deterioration of the magnetic properties. Besides, the magnetic properties decrease in evidence with increasing carbon content. The main factor that affects the magnetic properties is the deterioration of the microstructure of the magnets. The Sm（Co, Cu）5 phase decreases, whereas the cell size increases with the increase of the carbon content. When the carbon content is above 0.43 wt.%, the Sm（Co, Cu）5 phase is not enough to form a uniform cellular microstructure. Thus the magnetic properties disappear. ZrC is detected in the magnets by XRD when the carbon content is above 0.21 wt.%. ZrC also reduces the properties of the magnets.

关键词： permanent magnets oxygen carbon magnetic properties microstructure

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