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Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3) nanotubes

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Journal of advanced Ceramics 2022年第7期11卷 1069-1081页

作者： Angom Devadatta MANI Jie LI Ziquan WANG Jiale ZHOU Huaicheng XIANG Jinlai ZHAO Libo DENG Haitao YANG Lei YAO Shenzhen Key Laboratory of Special Functional Materials Shenzhen Engineering Laboratory for Advanced Technology of CeramicsGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen 518071China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China cCollege of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518071China

Photocatalytic degradation of organic pollutants is of great significance for wastewater remediation but is still hindered by the poor catalytic efficiency of the ***,we report a strategy to simultaneously introduce piezocatalysis and to enhance the intrinsic photocatalysis in a single catalyst,which improved the performance for catalytic degradation of methylene blue(MB)***,piezoelectric BiFeO_(3)(BFO)nanotube doped with different contents of Gd and La(Bi_(0.9)(GdxLa_(1−x))0.1FeO_(3))were produced by *** doping led to a higher concentration of surface oxygen vacancy(OV)in Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3),which effectively increased the piezoelectric field due to the deformation of BFO,and suppressed the recombination of photon-generated electron–hole *** Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3)nanotube showed excellent catalytic performance under simultaneous light irradiation and ultrasonic excitation,giving an extraordinary 95%degradation of MB within 90 *** findings suggest that the piezoelectric effect combined with defect engineering can enhance the catalytic performance of Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3)*** could potentially be extended to other catalytic systems for high-performance pollutant treatment.

关键词： photocatalysis piezocatalysis sonophotocatalysis oxygen vacancy(OV)

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Chiral Dirac-like fermion in spin-orbit-free antiferromagnetic semimetals

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The Innovation 2022年第6期3卷 152-158页

作者： Pengfei Liu Ao Zhang Jingzhi Han Qihang Liu Shenzhen Institute for Quantum Science and Engineering and Department of Physics Southern University of Science and TechnologyShenzhen 518055China School of Physics Peking UniversityBeijing 100871China Guangdong Provincial Key Laboratory of Computational Science and Material Design Southern University of Science and TechnologyShenzhen 518055China Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China

Dirac semimetal is a phase of matter whose elementary excitation is described by the relativistic Dirac *** the limit of zero mass,its parity-time symmetry enforces the Dirac fermion in the momentum space,which is composed of two Weyl fermions with opposite chirality,to be *** by the flavor symmetry in particle physics,we theoretically propose a massless Dirac-like equation yet linking two Weyl fields with the identical chirality by assuming SUe2T isospin symmetry,independent of the space-time rotation exchanging the two ***,such symmetry is hidden in certain solid-state spin-1/2 systems with negligible spinorbit coupling,where the spin degree of freedom is decoupled with the ***,the existence of the corresponding quasiparticle,dubbed as flavor Weyl fermion,cannot be explained by the conventional(magnetic)space group *** 4-fold degenerate flavor Weyl fermion manifests linear dispersion and a Chern number of±2,leading to a robust network of topologically protected Fermi arcs throughout the Brillouin *** material realization,we show that the transition-metal chalcogenide CoNb3S6 with experimentally confirmed collinear antiferromagnetic order is ideal for flavor Weyl semimetal under the approximation of vanishing spin-orbit *** work reveals a counterpart of the flavor symmetry in magnetic electronic systems,leading to further possibilities of emergent phenomena in quantum materials.

关键词： symmetry Dirac negligible

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Enhanced mechanical properties of Mg-3Al-1Zn alloy sheets through slope extrusion

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International Journal of Minerals,Metallurgy and Materials 2022年第7期29卷 1343-1350页

作者： Huabao Yang Yanfu Chai Bin Jiang Chao He Junjie He Qingshan Yang Ming Yuan School of Mechanical and Electrical Engineering Shaoxing UniversityShaoxing 312000China Tianjin Key Laboratory of Composite&Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjin 300072China State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversityChongqing 400044China College of Materials Science and Engineering Yunnan UniversityKunming 650091China School of Metallurgy and Material Engineering Chongqing University of Science and TechnologyChongqing 401331China

A novel extrusion approach,entitled slope extrusion(SE),was employed to manufacture AZ31(Mg-3Al-1 Zn,wt%)alloy *** microstructures,textures,and mechanical properties were investigated,compared with those of the AZ31 sheet fabricated by conventional extrusion(CE).Through the combination of finite element simulation and actual experiment,the ultimate results indicated that significant grain refinement(from 9.1 to 7.7 and 5.6μm)and strong basal texture(from 12.6 to 17.6 and 19.5 mrd)were achieved by the SE *** essence was associated with the additional introduced inclined interface in the process of SE,which could bring about more asymmetric deformation and stronger accumulated strain along the ND when compared with the process of *** a consequence,the SE sheets exhibited a higher yield strength(YS)and ultimate tensile strength(UTS)than the counterparts of the CE sheet,which was mainly assigned to the synergistic effects from grain refining and texture strengthening.

关键词： AZ31 Mg alloy sheets slope extrusion microstructure texture strength

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Block copolymer electrolyte with adjustable functional units for solid polymer lithium metal battery

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Journal of Energy Chemistry 2021年第1期30卷 67-74,I0003页

作者： Zhiyuan Lin Xianwei Guo Yubo Yang Mingxue Tang Qi Wei Haijun Yu College of Materials Sciences and Engineering Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaBeijing University of TechnologyBeijing 100124China Center for High Pressure Science&Technology Advanced Research Beijing 100094China

Solid polymer electrolytes have been considered as the promising candidates to improve the safety and stability of high-energy lithium metal ***,the practical applications of solid polymer electrolytes are still limited by the low ionic conductivity,poor interfacial contact with electrodes,narrow electrochemical window and weak mechanical ***,a series of novel block copolymer electrolytes with three-dimensional networks are designed by cross-linked copolymerization of the polyethylene glycol soft segments and hexamethylene diisocyanate trimer hard *** ionic migration performances and interface compatibilities with Li metal anode have been optimized delicately by tailoring the ratio of these functional *** optimized block copolymer electrolyte has shown an amorphous crystalline structure,a high ionic conductivity of ~5.7×10^(-4)S cm^(-1),high lithium ion transference number(~0.49),wide electrochemical window up to ~4.65 V(***+/Li) and favorable mechanical strength at 55℃.Furthermore,the enhanced interface compatibility can well support the normal operations of lithium metal batteries using both LiFePO4 and LiNi0.8Co0.15Al0.05O2 *** study not only paves a new way to develop solid polymer electrolyte with optimizing functional units,but also provides a polymer electrolyte design strategy for the application demand of lithium metal battery.

关键词： Block copolymer electrolyte functional units Ionic migration performance Interface compatibility Lithium metal battery

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Recent progress and challenges in interdigital microbatteries:Fabrication, functionalization and integration

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Journal of Energy Chemistry 2023年第3期78卷 294-314,I0009页

作者： Li Song Xuting Jin Chunlong Dai Yuyang Han Jiatao Zhang Yang Zhao Zhipan Zhang Liangti Qu Key Laboratory of Cluster Science Ministry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001Henan China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China

Currently,the increasing demands for portable,implantable,and wearable electronics have triggered the interest in miniaturized energy storage *** from conventional energy storage devices,interdigital microbatteries(IMBs) are free of separators and prepared on a single substrate,potentially achieving a short ionic diffusion path and better ***,they can be easily fabricated and integrated into on-chip miniaturized electronics,holding the promise to provide long-lasting power for advanced microelectronic *** date,while many seminal works have been reviewed the topic of microbatteries,there is no work that systematically summarizes the development of IMBs of high energy density and stable voltage platforms from fabrication,functionalization to *** current review focuses on the most recent progress in IMBs,discussing advanced micromachining techniques with compatible features to construct high-performance IMBs with smart functions and intelligent integrated *** future opportunities and challenges of IMBs are also highlighted,calling for more efforts in this dynamic and fast-growing research field.

关键词： Interdigital microbatteries Fabrication functionalization

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Defect detection in CFRP laminate structures using continuous laser-line scanning thermography with parameter optimization and PCA fusion method

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NDT and E International 2025年 155卷

作者： Li, Chaoyi Zhu, Jianguo Zhuo, Lijun Jin, Enze Liu, Hongrui Faculty of Civil Engineering and Mechanics Jiangsu University Zhenjiang212013 China Institute of Structural Health Management Jiangsu University Zhenjiang212013 China Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials & Processing Technology Beijing100076 China

Interfacial defects often occur in CFRP laminates due to their complex lay-up structures. These defects may lead to a decline in structural performance and pose safety risks. The continuous laser-line scanning thermography (CLST) has been proposed for rapid and accurate detection of defects in large components. In this study, the CLST is developed with parameter optimization and PCA fusion method, which aims for high-sensitivity detection of interfacial defects at the varying depth in CFRP laminated structures. Firstly, an optimal delay time is determined based on the maximum thermal contrast in CLST reconstruction for the defect with a certain depth. Accordingly, thermal sequence images are obtained based on the optimal delay time of the varying layer thickness, and then an image fusion using Principal Component Analysis (PCA) is conducted for high-sensitivity detection of defects. Subsequently, the optimization and PCA fusion method is verified by simulation and experiment. The experimental results demonstrate that defects with an aspect ratio less than two are detectable using CLST with calibrated optimal delay time. Moreover, results illustrate that the thermal contrast in the PCA fusion image improves over 60 % than that in the reconstructed image with a particular delay time. © 2025

关键词： Leak detection

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Insight into microstructure evolution on anti-corrosion property of Al_(x)CoCrFeNiC_(0.01) high-entropy alloys using scanning vibration electrode technique

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Rare Metals 2023年第10期42卷 3455-3467页

作者： Bo-Kai Liao Zhan-Xiang Liang Zhi-Gang Luo Yue Liu Hao-Wei Deng Tao Zhang Xing-Peng Guo Qi-Sen Ren Hong-En Ge School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou510006China School of Physics and Materials Science Center of Advanced Functional MaterialsGuangzhou UniversityGuangzhou510006China Joint Institute of Guangzhou University and Institute of Corrosion Science and Technology Guangzhou UniversityGuangzhou510006China Science and Technology Digitization Department China General Nuclear Power CorporationShenzhen518038China Institute of Nuclear Fuel and Materials China Nuclear Power Technology Research InstituteShenzhen518031China Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China

The effect of micro structure on the corrosion resistance of Al_(x)CoCrFeNiC_(0.01)(x=0.2,0.7,and 1.2)high-entropy alloys(HEAs) was systematically studied in this *** microstructure evolution by regulating the Al content was analyzed in *** behavior was in situ monitored using the scanning vibration electrode technique,as well as some traditional electrochemical *** is interesting to find that the compositions of body-centered cubic(bcc) and face-centered cubic(fcc)phases changed with the rising Al content,while the corresponding electrochemical responses for both phases were discriminated using the scanning Kelvin probe force microscopy *** element was mainly distributed in the bcc phase for Al0.2(x=0.2) alloy,while its distribution changed to the fcc phase for the A10.7 and *** micro-galvanic corrosion cells formed between Cr-depleted and Cr-rich phases,resulting in the localized corrosion behaviors for the Al_(x)CoCrFeNiC_(0.01) HEAs,and the order for anti-corrosion property was Al0.2>Al1.2> Al0.7 HEAs.

关键词： High-entropy alloy Corrosion Mechanical property Scanning vibration electrode technique

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Mechanisms and Mitigation Strategies of Gas Generation in Sodium-Ion Batteries

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Nano-Micro Letters 2025年第8期 25-56页

作者： Xingyan Li Xi Chen Meng Li Haoran Wei Xuming Yang Shenghua Ye Liewu Li Jing Chen Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Xiangtong Meng Jieshan Qiu Biwei Xiao Qianling Zhang Jiangtao Hu Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen University GRINM (Guangdong) Research Institute for Advanced Materials and Technology School of Materials Science and Engineering Xiangtan University College of Chemical Engineering State Key Laboratory of Organic-Inorganic CompositesState Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology

The transition to renewable energy sources has elevated the importance of SIBs（SIBs） as cost-effective alternatives to lithium-ion batteries（LIBs） for large-scale energy storage. This review examines the mechanisms of gas generation in SIBs, identifying sources from cathode materials, anode materials, and electrolytes, which pose safety risks like swelling, leakage, and explosions. Gases such as CO2, H2, and O2primarily arise from the instability of cathode materials, side reactions between electrode and electrolyte, and electrolyte decomposition under high temperatures or voltages. Enhanced mitigation strategies, encompassing electrolyte design, buffer layer construction, and electrode material optimization, are deliberated upon. Accordingly, subsequent research endeavors should prioritize long-term high-precision gas detection to bolster the safety and performance of SIBs, thereby fortifying their commercial viability and furnishing dependable solutions for large-scale energy storage and electric vehicles.

关键词：

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Using PyC modified 3D carbon fiber to reinforce UHTC under low temperature sintering without pressure

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Journal of advanced Ceramics 2021年第4期10卷 871-884页

作者： Baihe DU Yuan CHENG Liancai XUN Shuchang ZHANG Jing TONG Qingrong LV Shanbao ZHOU Ping HU Xinghong ZHANG National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin 150001China School of Physics and Material Science Anhui UniversityHefei 230601China

Finding the optimum balance between strength and toughness,as well as acquiring reliable thermal shock resistance and oxidation resistance,has always been the most concerned topic in the discussion of ultra-high temperature ceramic ***,PyC modified 3D carbon fiber is used to reinforce ultra-high temperature ceramic(UHTC).The macroscopic block composite with large size is successfully fabricated through low temperature sintering at 1300℃without *** prepared PyC modified 3D C_(f)/ZrC-SiC composites simultaneously possess excellent physical and chemical stability under the synergistic effect of PyC interface layer and low temperature 1/2 sintering without *** fracture toughness is increased in magnitude to 13.05±1.72 MPa·m^(1/2)accompanied by reliable flexural strength of 251±27 *** rapid thermal shock spanning from room temperature(RT)to 1200℃,there are no visible surface penetrating cracks,spalling,or structural *** maximum critical temperature difference reaches 875℃,which is nearly three times higher than that of traditional monolithic *** haunting puzzle of intrinsic brittleness and low damage tolerance are resolved *** the protection of PyC interface layer,the carbon fibers around oxide layer and matrix remain structure intact after static oxidation at 1500℃for 30 *** oxide layer has reliable physical and chemical stability and resists the erosion from fierce oxidizing atmosphere,ensuring the excellent oxidation resistance of the *** a sense,the present work provides promising universality in designability and achievement of 3D carbon fiber reinforced ceramic composites.

关键词： ultra-high temperature ceramic(UHTC) pyrolytic carbon interface layer carbon fiber

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Single-atom cobalt nanozymes promote spinal cord injury recovery by anti-oxidation and neuroprotection

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Nano Research 2023年第7期16卷 9752-9759页

作者： Yuxing Jiang Hongtao Rong Yifan Wang Shange Liu Peng Xu Zhen Luo Lamei Guo Tao Zhu(✉) Hongpan Rong Dingsheng Wang Jiatao Zhang Yu Yi Hao Wang Tianjin Medical University General Hospital Tianjin 300052China CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyNational Center for Nanoscience and TechnologyBeijing 100190China Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications Key Laboratory of Medical Molecule Science and Pharmaceutics EngineeringMinistry of Industry and Information TechnologySchool of Materials Science&EngineeringSchool of Chemistry and Chemical EngineeringInstitute of Engineering MedicineBeijing Institute of TechnologyBeijing 100081China Department of Chemistry Tsinghua UniversityBeijing 100084China University of Chinese Academy of Sciences Beijing 100049China

Oxidative stress and inflammation are central pathophysiological processes in a traumatic spinal cord injury(SCI).Antioxidant therapies that reduce the reactive oxygen and nitrogen species(RONS)overgeneration and inflammation are proved promising for improving the ***,efficient and long-lasting antioxidant therapy to eliminate multiple RONS with effective neuroprotection remains ***,a single-atom cobalt nanozyme(Co-SAzyme)with a hollow structure was reported to reduce the RONS and inflammation in the secondary injury of *** SAzymes featuring different single metal-N sites(e.g.,Mn,Fe,Co,Ni,and Cu),this Co-SAzyme showed a versatile property to eliminate hydrogen peroxide(H_(2)O_(2)),superoxide anion(O_(2)·^(-)),hydroxyl radical(·OH),nitric oxide(·NO),and peroxynitrite(ONOO^(-))that overexpressed in the early stage of *** porous hollow structure also allowed the encapsulation and sustained release of minocycline for neuroprotection in *** vitro results showed that the Co-SAzyme reduced the apoptosis and pro-inflammatory cytokine levels of microglial cells under oxidative *** addition,the Co-SAzyme combined with minocycline achieved remarkable improved functional recovery and neural repairs in the SCI-rat model.

关键词： single-atom catalysis spinal cord injury reactive oxygen and nitrogen species anti-inflammation neuroprotection

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