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Multimaterial additive manufacturing manipulator for fabricating magnetoelectric pressure sensors

Science China(Technological Sciences) 2022年第11期65卷 2542-2550页

作者： LIU ZhuFeng LI ZhaoQing WANG Qi WANG Yan YANG Lei NIE Xiang GENG Peng WU ZhenHua TANG SiHan YANG Lei WU HongZhi SHI YunSong CHEN Peng SU Bin ZHANG LiChao YAN ChunZe SHI YuSheng State Key Laboratory of Materials Processing and Die&Mould Technology Huazhong University of Science and Technology Wuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhan 430074China Schol of Materials Science and Enginering Wuhan Insitute of TechnologyWuhan 430205Chinai School of Transportation and Logisis Engineering Wuhan University of TechnologyWuhan 430063China Deparment of Orthopaedics Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030China

The simultaneous placement of different types of materials including polymers,ceramics,and metals,in their desired positions could be adopted to manufacture end-use devices/apparatuses with diverse functionalities and significantly reduce the fabrication cost and ***,existing additive manufacturing(AM)approaches can only treat one material species at a time due to their intrinsic working *** we develop an AM manipulator for manufacturing a wide variety of material species,including polymers,ceramics,and metals,through a multifilament transport strategy assisted by laser *** six-jaw manipulator contains three pairs of filament delivering/cutting systems for transporting diverse materials and a beam of tunable laser as the thermal *** whole apparatus is integrated into a robotic manipulator to create a multifreedom manufacturing *** this innovation,products with multiple material species and desired complex geometries can be fabricated on ***,we synthesize a multimaterial(polymer/ceramic/metal)printed magnetoelectric pressure sensor that can convert applied mechanical forces to electricity and maintain efficiency even after undergoing 10000 cycles of pressure/*** this multimaterial filament transport and laser manufacturing strategy,our AM manipulator exhibits promising application in the advanced manufacturing of embedded electronics,sensors,soft robotics,and customizable medical devices.

关键词： multiple materials additive manufacturing laser manipulator magnetoelectric

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Ultra-High-Performance Aluminum-Based Hybrid Supercapacitors Prepared for Nitrogen-Doped Micro-Mesoporous Carbon Sphere

SSRN

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SSRN 2023年

作者： Sun, Weiyi Xing, Lingli Zhang, Bomian Shi, Wenchao Ren, Jingke Zhang, Xinyu Xiong, Fangyu An, Qinyou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Hubei Xiangyang441000 China

Aluminum-based devices are promising candidates for the next generation of energy storage due to the advantages of high energy density, high safety, and low cost. The aluminum ion batteries (AIBs) are based on the electrochemical intercalation/deintercalation reactions against the electrodes, but the selection of the cathode is limited to present. The cathode reactions of cation-type AIBs are plagued by the poor kinetics of solid-state diffusion from high charge density of Al3+ and anion-type AIBs show poor capacity due to the intercalation of large-sized chloroaluminate (AlCl4−) active ions into the cathode. Here, we deliberately adopted a hybrid capacitor-battery mechanism and employed a nitrogen-doped micro-mesoporous carbon sphere of a high specific area as the cathode and aluminum as the anode to construct an aluminum-based energy storage device. After optimization, it exhibits an excellent discharge capacity of 224 mA h g−1 at a current density of 300 mA g−1, and exceptional cycling performance with a discharge capacity as high as 114 mA h g−1 at 10 A g−1 after 35000 cycles. The ultra-high-performance aluminum-based hybrid supercapacitor (Al-HSC) may lead to a new direction for the development of aluminum-based energy storage devices. © 2023, The Authors. All rights reserved.

关键词： Aluminum

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Cobalt doping boosted electrocatalytic activity of CaMn3O6 for hydrogen evolution reaction

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Nano Research 2022年第4期15卷 2870-2876页

作者： Qun Li Kaisi Liu Siwei Gui Jiabin Wu Xiaogang Li Zaifang Li Hongrun Jin Hui Yang Zhimi Hu Wenxi Liang Liang Huang Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China China-Australia Institute for Advanced Materials and Manufacturing Jiaxing UniversityJiaxing 314001China State Key Laboratory of Material Processing and Die&Mold Technology Department of MechanicsSchool of Aerospace EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The development of earth-abundant-metal-based electrocatalysts with high efficiency and long-term stability for hydrogen evolution reaction(HER)is crucial for the clean and renewable energy ***,we report a molten-salt method to synthesize Co-doped CaMn_(3)O_(6)(CMO)nanowires(NWs)as effective electrocatalyst for *** as-obtained CaMn_(3-x)Co_(x)O_(6)(CMCO)exhibits a small onset overpotential of 70 mV,a required overpotential of 140 mV at a current density of 10 mA·cm^(-2),a Tafel slope of 39 mV·dec^(-1)in 0.1 M HClO_(4),and a satisfying long-term *** characterizations combined with density functional theory(DFT)calculations demonstrate that the obtained HER performance can be attributed to the Co-doping which altered CMO’s surface electronic structures and *** the simplicity of synthesis route and the abundance of the pertinent elements,the synthesized CMCO shows a promising prospect as a candidate for the development of earth-abundant,metal-based,and cost-effective electrocatalyst with superior HER *** results also establish a strategy of rational design and construction of novel electrocatalyst toward HER by tailoring band structures of transition metal oxides(TMOs).

关键词： CMCO nanowires hydrogen evolution reaction electronic structure dopant

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Er:CaF2 Crystal and Laser Ceramic: a Comparative Study

Er:CaF2 Crystal and Laser Ceramic: a Comparative Study

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2024 advanced Solid state Lasers, ASSL 2024

作者： Normani, Simone Loiko, Pavel Gan, Shiyan Li, Weiwei Mei, Bingchu Benayad, Abdelmjid Jambunathan, Venkatesan Braud, Alain Chen, Weidong Camy, Patrice UMR 6252 CEA-CNRS-ENSICAEN Université de Caen Normandie 6 Boulevard Maréchal Juin Caen14050 Cedex 4 France State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou350002 China

Spectroscopy and mid-infrared laser performance are compared for Er:CaF2 single-crystal and hot-pressed transparent *** 2.8-µm Er:CaF2 crystal laser delivers 0.81 W with 32.6% slope efficiency and outperforms the... 详细信息

关键词： Single crystals

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Progress and perspectives in dielectric energy storage ceramics

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Journal of advanced Ceramics 2021年第4期10卷 675-703页

作者： Dongxu LI Xiaojun ZENG Zhipeng LI Zong-Yang SHEN Hua HAO Wenqin LUO Xingcai WANG Fusheng SONG Zhumei WANG Yueming LI Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi Province China National Light Industry Key Laboratory of Functional Ceramic MaterialsSchool of Materials Science and EngineeringJingdezhen Ceramic UniversityJingdezhen 333403China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Chengdu Hongke Electronic Technology Co. Ltd.Chengdu 610000China

Dielectric ceramic capacitors,with the advantages of high power density,fast chargedischarge capability,excellent fatigue endurance,and good high temperature stability,have been acknowledged to be promising candidates for solid-state pulse power *** review investigates the energy storage performances of linear dielectric,relaxor ferroelectric,and antiferroelectric from the viewpoint of chemical modification,macro/microstructural design,and electrical property *** progress of ceramic bulks and films for Pb-based and/or Pb-free systems is ***,we propose the perspectives on the development of energy storage ceramics for pulse power capacitors in the future.

关键词： energy storage ceramics dielectric relaxor ferroelectric antiferroelectric pulse power capacitor

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Confined cobalt single-atom catalysts with strong electronic metal-support interactions based on a biomimetic self-assembly strategy

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Carbon Energy 2024年第9期6卷 156-171页

作者： Bowen Guo Zekun Wang Lei Zheng Guang Mo Hongjun Zhou Dan Luo State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading UtilizationCollege of New Energy and MaterialsChina University of Petroleum(Beijing)BeijingChina Beijing Key Laboratory of Micro-Nano Energy and Sensor CAS Center for Excellence in NanoscienceBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijingChina School of Chemical Engineering Shandong Institute of Petroleum and Chemical TechnologyDongyingShandongChina School of Chemistry Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijingChina Institute of High Energy Physics Chinese Academy of SciencesBeijingChina

Designing high-performance and low-cost electrocatalysts for oxygen evolu-tion reaction(OER)is critical for the conversion and storage of sustainable energy *** by the biomineralization process,we utilized the phosphorylation sites of collagen molecules to combine with cobalt-based mononuclear precursors at the molecular level and built a three-dimensional(3D)porous hierarchical material through a bottom-up biomimetic self-assembly strategy to obtain single-atom catalysts confined on carbonized biomimetic self-assembled carriers(Co SACs/cBSC)after subsequent high-temperature *** this strategy,the biomolecule improved the anchoring efficiency of the metal precursor through precise functional groups;meanwhile,the binding-then-assembling strategy also effectively suppressed the nonspecific adsorption of metal ions,ultimately preventing atomic agglomeration and achieving strong electronic metal-support interactions(EMSIs).Experimental characterizations confirm that binding forms between cobalt metal and carbonized self-assembled substrate(Co–O_(4)–P).Theoretical calculations disclose that the local environment changes significantly tailored the Co d-band center,and optimized the binding energy of oxygenated intermediates and the energy barrier of oxygen *** a result,the obtained Co SACs/cBSC catalyst can achieve remarkable OER activity and 24 h durability in 1 M KOH(η_(10) at 288 mV;Tafel slope of 44 mV dec^(-1)),better than other transition metal-based catalysts and commercial IrO_(2).Overall,we presented a self-assembly strategy to prepare transition metal SACs with strong EMSIs,providing a new avenue for the preparation of efficient catalysts with fine atomic structures.

关键词： biomimetic self-assembly support electronic metal-support interactions oxygen evolution reaction single atoms catalysts

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Insights into laser powder bed fused β-type titanium alloy: Investigating corrosion behavior and wear properties after post-heat treatment

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Journal of materials Research and technology 2025年 37卷 1596-1605页

作者： Xuan Luo Yuhao Li Chao Yang Chao Zhao Hongwei Ma Tao Song Minghan Sun Xiaotao Liu Dongdong Li Ning Li State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Wuhan 430074 China National Engineering Research Center of Near-net-shape Forming for Metallic Materials Guangdong Provincial Key Laboratory for Processing and Forming of Advanced Metallic Materials South China University of Technology Guangzhou 510640 China

The systematic evaluation of corrosion resistance and wear behavior represents a critical imperative for advancing biomedical titanium alloys in implant applications. This study systematically examines the corrosion-wear characteristics of laser powder bed fusion (LPBF)-fabricated β-type Ti-34.5Nb-6.9Zr-4.9Ta-1.4Si (TNZTS) alloy after post heat treatment, comparing with LPBF-processed Ti–35Nb–7Zr–5Ta (TNZT) and Ti–6Al–4V counterparts. Electrochemical analysis reveals the TNZTS system's good corrosion resistance, stemming primarily from stabilized passivation film formation. The incorporation of Si did not significantly affect the corrosion performance of TNZT alloy. In addition, the TNZTS alloy with hard S2 phase showes improvement in wear resistance, as manifested by shallower and narrower wear tracks and a lower specific wear rate. This study provides foundational insights into the novel β-type Ti–Nb–Zr–Ta–Si alloy with excellent corrosion resistance and wear properties, positioning it as a promising candidate for load-bearing orthopedic implant applications.

关键词： Laser powder bed fusion Biomedical titanium alloy Corrosion Wear property Electrochemistry

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Microstructure and mechanical properties of B 4 C–TiB 2 –SiC-BN composites fabricated by in-situ reaction spark plasma sintering

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Journal of materials Research and technology 2025年 37卷 389-396页

作者： Zeping Wang Wen Zhang Jinyong Zhang Lin Ren Fan Zhang Weimin Wang Zhengyi Fu Hubei Longzhong Laboratory Wuhan University of Technology Xiangyang Demonstration Zone Xiangyang 441000 China State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing. Wuhan University of Technology Wuhan 430070 China

B 4 C-TiB 2 -SiC-BN composites are fabricated by employing B 4 C, Si 3 N 4 , and TiC as raw powders via in-situ reaction spark plasma sintering. The densification behavior, microstructure, and mechanical properties of composites with different additive amounts of (Si 3 N 4 +TiC) are investigated. It is confirmed that the in-situ reaction during the sintering procedure of the composites effectively promotes the densification process. Toughening mechanisms including crack deflection, crack branching, crack bridging coupled with BN pull-out lead to the improvement of flexural strength and fracture toughness. As a result, the composites exhibit optimal performance when 15 wt% (Si 3 N 4 +TiC) are added, with the bulk density, flexural strength, fracture toughness and Vickers hardness of 2.59 g/cm 3 , 705 MPa, 4.4 MPa m 1/2 , and 27.8 GPa, respectively. This provides a novel route to preserve the lightweight characteristics and simultaneously enhance the mechanical performance of B 4 C-based composites.

关键词： B 4 C-TiB 2 -SiC-BN composites In-situ reaction Toughening mechanisms Mechanical properties

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Phosphorus modulated porous CeO_(2)nanocrystallines for accelerated polysulfide catalysis in advanced Li-S batteries

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Journal of materials Science & technology 2022年第36期131卷 212-220页

作者： Xuefeng Tao Zhao Yang Menghao Cheng Rui Yan Fan Chen Sujiao Cao Shuang Li Tian Ma Chong Cheng Wei Yang College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of TechnologyLanzhou 730050China Department of Ultrasound National Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengdu 610041China

The insulating nature of sulfur species,sluggish reaction kinetics,and uncontrolled dissolution of lithium polysulfide(LiPS)intermediates during the complex and multiphase sulfur redox process,have severely inhibited the applications of Li-S *** this study,we report a rational strategy to accelerate the polysulfide catalysis via constructing phosphorus modulated porous CeO_(2)(P-CeO_(2))for advanced Li-S *** morphology and surface analysis demonstrate that the P-CeO_(2)consists of abundant Pmodulated porous CeO_(2)*** battery performance reveals that the introduction of P will lead to an improved initial capacity of 1027 mA hg^(-1)than that of bare CeO_(2)(895.7 mA hg^(-1))at 0.2 *** addition,the P-CeO_(2)cathode can maintain a low capacity decay ratio of 0.10%per cycle after 500 cycles at 1.0 *** coin battery tests suggest that the P-CeO_(2)cathode presents faster oxidation-reduction kinetics of LiPS and quick diffusion of Li^+***,the studies of redox processes and chemical interactions of LiPS have demonstrated the P-CeO_(2)cathode displays stronger adsorption of Li_(2)S_(6),higher redox peak current,and earlier precipitation of Li_(2)S than the bare CeO_(2).This study demonstrates for the first time that the P-modulation of metal oxide surface can simultaneously promote the catalytic reaction kinetics and chemical interaction of *** anticipate that this P-modulation method can be extended to many other nanostructured metal catalytic sites for developing affordable advanced Li-S batteries.

关键词： Metal oxides P-modulated porous CeO_(2) Polysulfide catalytic materials Shuttle effects Lithium-sulfur batteries

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Multi-functional layered double hydroxides supported by nanoporous gold toward overall hydrazine splitting

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Frontiers of Chemical Science and Engineering 2024年第1期18卷 61-69页

作者： Yongji Qin Huijie Cao Qian Liu Shaoqing Yang Xincai Feng Hao Wang Meiling Lian Dongxing Zhang Hua Wang Jun Luo Xijun Liu ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaShenzhen 518110China Institute for New Energy Materials and Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China Institute for Advanced Study Chengdu UniversityChengdu 610106China China National Coal Group Corporation Beijing 100120China Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development School of Transportation Science and EngineeringCivil Aviation University of ChinaTianjin 300300China

Layered double hydroxides have demonstrated great potential for the oxygen evolution reaction,which is a crucial half-reaction of overall water ***,it remains challenging to apply layered double hydroxides in other electrochemical reactions with high efficiency and ***,we report two-dimensional multifunctional layered double hydroxides derived from metalorganic framework sheet precursors supported by nanoporous gold with high porosity,which exhibit appealing performances toward oxygen/hydrogen evolution reactions,hydrazine oxidation reaction,and overall hydrazine *** as-prepared catalyst only requires an overpotential of 233 mV to reach 10 mA·cm^(-2) toward oxygen evolution *** overall hydrazine splitting cell only needs a cell voltage of 0.984 V to deliver 10 mA·cm^(-2),which is far more superior than that of the overall water splitting system(1.849 V).The appealing performances of the catalyst can be contributed to the synergistic effect between the metal components of the layered double hydroxides and the supporting effect of the nanoporous gold substrate,which could endow the sample with high surface area and excellent conductivity,resulting in superior activity and stability.

关键词： layered double hydroxide oxygen evolution reaction hydrazine oxidation reaction overall hydrazine splitting hydrogen production

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