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Functionally graded structure of a nitride-strengthened Mg_(2)Si-based hybrid composite

Journal of Magnesium and Alloys 2024年第3期12卷 1239-1256页

作者： Jeongho Yang Woongbeom Heogh Hogi Ju Sukhyun Kang Tae-Sik Jang Hyun-Do Jung Mohammad Jahazi Seung Chul Han Seong Je Park Hyoung Seop Kim Susmita Bose Amit Bandyopadhyay Martin Byung-Guk Jun Young Won Kim Dae-kyeom Kim Rigoberto CAdvincula Clodualdo Aranas Jr Sang Hoon Kim School of Mechanical Engineering Pusan National UniversityBusan 46241Republic of Korea Department of Mechanical Design Engineering Hanyang UniversitySeoul 04763Republic of Korea Process Research 3 Team LG Display Co.Ltd.PajuGyeonggi-do 10845Republic of Korea Department of Materials Science and Engineering Chosun UniversityGwangju 61452Republic of Korea Institute of Well-Aging Medicare&Chosun University LAMP Center Chosun UniversityGwangju 61452Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Mechanical Engineering École de Technologie SupérieureMontrealQuebec H3C 1K3Canada Material&Component Convergence R&D Center Korea Construction Equipment Technology InstituteGunsanJeollabuk-do 54002Republic of Korea School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Graduate Institute of Ferrous&Eco Materials Technology Pohang University of Science and TechnologyPohangGyeongsangbuk-do 37673Republic of Korea Advanced Institute for Materials Research Tohoku UniversitySendai 980-8577Japan Institute for Convergence Research and Education in Advanced Technology Yonsei UniversitySeoul 03722Republic of Korea School of Mechanical and Materials Engineering Washington State UniversityPullmanWashington 99164USA School of Mechanical Engineering Purdue UniversityWest LafayetteIndiana 47907USA Research Institute of Advanced Manufacturing Technology Korea Institute of Industrial TechnologyIncheon 21999Republic of Korea Department of Macromolecular Science and Engineering Case Western Reserve UniversityClevelandOhio 44106USA Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials University of TennesseeKnoxvilleTennessee 37996USA Center for Nanophase Materials and Sciences Oak Ridge National LaboratoryOak RidgeTennessee 37830USA Department of Mechanical Engineering University of New BrunswickFrederictonNew Brunswick E3B 5A3Cana

The ex-situ incorporation of the secondary SiC reinforcement,along with the in-situ incorporation of the tertiary and quaternary Mg_(3)N_(2) and Si_(3)N_(4) phases,in the primary matrix of Mg_(2)Si is employed in order to provide ultimate wear resistance based on the laser-irradiation-induced inclusion of N_(2) gas during laser powder bed *** is substantialized based on both the thermal diffusion-and chemical reactionbased metallurgy of the Mg_(2)Si–SiC/nitride hybrid *** study also proposes a functional platform for systematically modulating a functionally graded structure and modeling build-direction-dependent architectonics during additive *** strategy enables the development of a compositional gradient from the center to the edge of each melt pool of the Mg_(2)Si–SiC/nitride hybrid ***,the coefficient of friction of the hybrid composite exhibits a 309.3%decrease to–1.67 compared to–0.54 for the conventional nonreinforced Mg_(2)Si structure,while the tensile strength exhibits a 171.3%increase to 831.5 MPa compared to 485.3 MPa for the conventional *** outstanding mechanical behavior is due to the(1)the complementary and synergistic reinforcement effects of the SiC and nitride compounds,each of which possesses an intrinsically high hardness,and(2)the strong adhesion of these compounds to the Mg_(2)Si matrix despite their small sizes and low concentrations.

关键词： Laser powder bed fusion Mg_(2)Si-SiC/nitride hybrid composite Both the thermal diffusion-and chemical reaction-based metallurgy Functionally graded structure Compositional gradient Wear resistance.

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Self-adaptive hydrogel for breast cancer therapy via accurate tumor elimination and on-demand adipose tissue regeneration

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Chinese Chemical Letters 2024年第1期35卷 371-378页

作者： Ran Tian Xinyu Qiu Wenyun Mu Bolei Cai Zhongning Liu Shiyu Liu Xin Chen School of Chemical Engineering and Technology Department of Chemical EngineeringShaanxi Key Laboratory of Energy Chemical Process IntensificationXi'an Jiao Tong UniversityXi'an 710049China School of Stomatology State Key Laboratory of Military Stomatology&National Clinical Research Center for Oral Diseases&Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistryThe Fourth Military Medical UniversityXi'an 710032China School of Stomatology State Key Laboratory of Military StomatologyDepartment of Oral and Maxillofacial SurgeryThe Fourth Military Medical UniversityXi'an 710032China Department of Prosthodontics Peking University School and Hospital of StomatologyNational Clinical Research Center for Oral DiseasesNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Key Laboratory of Digital StomatologyBeijing 100081China School of Stomatology State Key Laboratory of Military StomatologyNational Clinical Research Center for Oral DiseasesShaanxi International Joint Research Center for Oral DiseasesCenter for Tissue EngineeringThe Fourth Military Medical UniversityXi'an 710032China

The irregular defects and residual tumor tissue after surgery are challenges for effective breast cancer ***,a smart hydrogel with self-adaptable size and dual responsive cargos release was fabricated to treat breast cancer via accurate tumor elimination,on-demand adipose tissue regeneration and effective infection *** hydrogel consisted of thiol groups ended polyethylene glycol(SH-PEG-SH)and doxorubicin encapsulated mesoporous silica nanocarriers(DOX@MSNs)double crosslinked hyaluronic acid(HA)after loading of antibacterial peptides(AP)and adipose-derived stem cells(ADSCs).A pH-cleavable unsaturated amide bond was pre-introduced between MSNs and HA frame to perform the tumor-specific acidic environment dependent DOX@MSNs release,meanwhile an esterase degradable glyceryl dimethacrylate cap was grafted on MSNs,which contributed to the selective chemotherapy in tumor cells with over-expressed *** bond cleavage between MSNs and HA would also cause the swelling of the hydrogel,which not only provide sufficient space for the growth of ADSCs,but allows the hydrogel to fully fill the irregular defects generated by surgery and residual tumor atrophy,resulting in the on-demand regeneration of adipose ***,the sustained release of AP could be simultaneously triggered along with the size change of hydrogel,which further avoided bacterial infection to promote tissue regeneration.

关键词： Smart hydrogel with self-adaptable size Breast cancer therapy Dual responsive cargoes release Selective tumor elimination On-demand adipose tissue regeneration Effective bacteria inhibition

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Mycelium-Based Biocomposites from Recycled Wood: Influence of Fungal Species on Properties of Biocomposites 32

Mycelium-Based Biocomposites from Recycled Wood: Influence o...

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32nd International Conference on Wood Science and technology: Unleashing the Potential of Wood-Based materials, ICWST 2023

作者： Štěpán, Hýsek Markéta, Daňková Miroslav, Jozífek Miroslav, Němec Rupert, Wimmer Institute of Wood Technology and Renewable Materials Department of Material Sciences and Process Engineering University of Natural Resources and Life Sciences Vienna Austria Department of Wood Processing and Biomaterials Faculty of Forestry and Wood Sciences Czech University of Life Sciences Prague Prague Czech Republic Department of Horticulture Faculty of Agrobiology Food and Natural Resources Czech University of Life Sciences Prague Prague Czech Republic

ISBN: (纸本)9789532920833

Mycelium-based bio-composites (MBB) are composite materials that are produced by the growth of fungal mycelia on the substrate from lignocellulosic (LC) materials such as straw, husks or wood particles. Adhesives are not used in this technology to produce composites, because the LC particles are bonded by mycelium. MBB can be used for packaging, decorative design objects or for furniture. In the presented research particles from recycled wood were used to produce not-pressed MBB. Ganoderma lucidum, Ganoderma lingzhi and Pleurotus ostreatus were selected to grow the MBB from recycled wood. Tensile strength perpendicular to the plane of the board (internal bonding) and moisture uptake of the produced variants of MBB as well as fungi growth rate were evaluated. It was observed that all used fungal species were able to fully colonise the substrate from recycled wood and that the contaminants present in the recycled wood did not negatively affect the ability of fungi to colonise the substrate. Produced MBB reached promising properties that offer the possibility of using the developed material for thermal insulation purposes. © 2023 ICWST 2023 - 32nd International Conference on Wood Science and technology: Unleashing the Potential of Wood-Based materials, Proceedings. All Rights Reserved.

关键词： Mycelium

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Performance optimization of microbial electrolysis cell (MEC) for palm oil mill effluent (POME) wastewater treatment and sustainable Bio-H2 production using response surface methodology (RSM)

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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2022年第34期47卷 15464-15479页

作者： Chandrasekhar, Abudukeremu Kadier ab Junying Wang ab K. Wang, Junying Chandrasekhar, K. Abdeshahian, Peyman Islam, M. Amirul Ghanbari, Farshid Bajpai, Mukul Katoch, Surjit Singh Bhagawati, Prashant Basavaraj Li, Hui Kalil, Mohd Sahaid Hamid, Aidil Abdul Abu Hasan, Hassimi Ma, Peng-Cheng Laboratory of Environmental Science and Technology The Xinjiang Technical Institute of Physics and Chemistry Key Laboratory of Functional Materials and Devices for Special Environments Chinese Academy of Sciences Urumqi 830011 China Center of Material and Opto-electronic Research University of Chinese Academy of Sciences Beijing 100049 China School of Civil and Environmental Engineering Yonsei University Seoul 03722 Republic of Korea Department of Biotechnology Engineering School of Lorena University of São Paulo São Paulo 12602-810 Brazil Laboratory for Quantum Semiconductors and Photon-based BioNanotechnology Department of Electrical and Computer Engineering Faculty of Engineering Université de Sherbrooke Sherbrooke Québec J1K 2R1 Canada Research Center for Environmental Contaminants (RCEC) Abadan University of Medical Sciences Abadan Iran Environmental Engineering Lab Civil Engineering Department National Institute of Technology Hamirpur Hamirpur Himachal Pradesh 177005 India Faculty of Engineering Department of Civil Engineering Annasaheb Dange College of Engineering and Technology Ashta Maharashtra 416301 India Department of Chemical and Process Engineering Faculty of Engineering and Built Environment National University of Malaysia (UKM) UKM Bangi 43600 Selangor Malaysia School of Biosciences and Biotechnology Faculty of Science and Technology National University of Malaysia (UKM) UKM Bangi 43600 Selangor Malaysia Research Centre for Sustainable Process Technology Faculty of Engineering and Built Environment National University of Malaysia (UKM) UKM Bangi 43600 Selangor Malaysia

Microbial electrolysis cells (MECs) are a new bio-electrochemical method for converting organic matter to hydrogen gas (H-2). Palm oil mill effluent (POME) is hazardous wastewater that is mostly formed during the crude oil extraction process in the palm oil industry. In the present study, POME was used in the MEC system for hydrogen generation as a feasible treatment technology. To enhance biohydrogen generation from POME in the MEC, an empirical model was generated using response surface methodology (RSM). A central composite design (CCD) was utilized to perform twenty experimental runs of MEC given three important variables, namely incubation temperature, initial pH, and influent dilution rate. Experimental results from CCD showed that an average value of 1.16 m(3) H-2/m(3) d for maximum hydrogen production rate (HPR) was produced. A second-order polynomial model was adjusted to the experimental results from CCD. The regression model showed that the quadratic term of all variables tested had a highly significant effect (P < 0.01) on maximum HPR as a defined response. The analysis of the empirical model revealed that the optimal conditions for maximum HPR were incubation temperature, initial pH, and influent dilution rate of 30.23 ?, 6.63, and 50.71%, respectively. Generated regression model predicted a maximum HPR of 1.1659 m(3) H-2/m(3) d could be generated under optimum conditions. Confirmation experimentation was conducted in the optimal conditions determined. Experimental results of the validation test showed that a maximum HPR of 1.1747 m(3) H-2/m(3) d was produced. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

关键词： Microbial electrolysis cell (MEC) Hydrogen production Palm oil mill effluent (POME) Wastewater Optimization Response surface methodology (RSM)

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Vapor phase epitaxy of PbS single-crystal films on water-soluble substrates and application to photodetectors

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Nano Research 2022年第6期15卷 5402-5409页

作者： Yifan Wang Jing Xia Xuanze Li Fan Ru Xue Chen Ze Hua Ruiwen Shao Xuecong Wang Wenjun Zhang Chun-Sing Lee Xiangmin Meng Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Institute of Process Engineering Chinese Academy of SciencesBeijing 100190China Centre of Material Science and Optoelectronic Engineering University of Chinese Academy of SciencesBeijing 10049China Engineering Research Center for Semiconductor Integrated Technology Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Analysis&Testing Center Beijing Institute of TechnologyBeijing 102488China Beijing Advanced Innovation Center for Intelligent Robots and Systems and Institute of Convergence in Medicine and Engineering Beijing Institute of TechnologyBeijing 100081China Center of Super-Diamond and Advanced Films(COSADF)and Department of Materials Science and Engineering City University of Hong KongHong KongChina Center of Super-Diamond and Advanced Films(COSDAF)and Department of Chemistry City University of Hong KongHong KongChina

Lead sulfide(PbS),a typical functional semiconductor material,has attracted serious attention due to its great potential in optoelectronics ***,controllable growth of PbS single-crystal film still remains a great ***,we report heteroepitaxial growth of large-scale highly crystalline PbS films on alkali salt(NaCl and KCl)substrates via chemical vapor deposition(CVD).Structural characterizations demonstrate that the as-grown PbS films exhibit an atomically sharp interface with the underlying *** epitaxial relationships between the epilayers and substrates were determined to be PbS(100)//NaCl(100)or KCl(100),PbS[010]//NaCl[010]or KCl[010].Owing to the high solubility of alkali salt,the epitaxial PbS films can be rapidly released from the underlying substrates and transferred to other substrates of interest while maintaining good integrity and crystallinity,the process of which is particularly attractive in the fields of electronics and ***,photodetectors based on the transferred PbS films were fabricated,exhibiting a high photoresponsivity of 7.5 A/W,a detectivity of 1.44×10^(12)Jones,and a rapid response time of approximately 0.25 *** work sheds light on the batch production,green transfer,and optoelectronic application of PbS films.

关键词： heteroepitaxial growth lead sulfide(PbS) single-crystal film photodetector transferable

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Advances in vat photopolymerization: early-career researchers shine light on a path forward

RSC Applied Polymers

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RSC Applied Polymers 2025年第3期3卷 574-591页

作者： Dhand, Abhishek P. Bean, Ren H. Chiaradia, Viviane Commisso, Alex J. Dranseike, Dalia Fowler, Hayden E. Fraser, Julia M. Howard, Holden Kaneko, Takashi Kim, Ji-Won Kronenfeld, Jason M. Mason, Keldy S. Pashley-Johnson, Fred Porcincula, Dominique H. Segal, Maddison I. Yu, Siwei Saccone, Max A. Department of Bioengineering University of Pennsylvania Philadelphia PA United States Sandia National Laboratories Albuquerque NM United States Department of Chemistry RCSI University of Medicine and Health Sciences Dublin Ireland Macromolecular Engineering Laboratory Department of Mechanical and Process Engineering ETH Zurich Zurich Switzerland Department of Chemistry University of Wisconsin-Madison Madison WI United States Materials Engineering Division Lawrence Livermore National Laboratory United States Department of Chemistry and Biochemistry University of California Santa Barbara CA United States Department of Chemical Engineering Kyungpook National University Daegu South Korea Department of Chemistry Stanford University Stanford CA United States Department of Chemistry The University of Texas at Austin Austin TX United States School of Chemistry and Physics Centre for Materials Science Queensland University of Technology (QUT) Brisbane QLD Australia Centre of Macromolecular Chemistry (CMaC) Department of Organic and Macromolecular Chemistry Faculty of Sciences Ghent University Ghent Belgium Thomas Lord Department of Mechanical Engineering & Material Science Duke University Durham NC United States Department of Chemistry University of Washington Seattle WA United States Department of Chemical Engineering Stanford University Stanford CA United States Paul M. Rady Department of Mechanical Engineering University of Colorado Boulder Boulder CO United States

Vat photopolymerization (VP) has emerged as a promising additive manufacturing technique to allow rapid light-based fabrication of 3D objects from a liquid resin. Research in the field of vat photopolymerization spans across multiple disciplines from engineering and materials science to applied chemistry and physics. This perspective brings together early-career researchers from various disciplines in academia and national laboratories around the world to summarize the most recent advancements with special emphasis on the research highlighted as part of the Gordon Research Conference (GRC) 2024 meeting on Additive Manufacturing of Soft materials. We provide an outlook on next-generation polymer processing methods from synthesis of novel materials to multimodality manufacturing and performance engineering. Further, this article combines the ideas of many of these junior researchers to present a vision for the future of the field by highlighting the challenges and opportunities that lie ahead. © 2025 RSC.

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Actuation performances of catkin fibers reinforced thiol-acrylate main-chain liquid crystalline elastomer

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International Journal of Smart and Nano materials 2022年第4期13卷 668-690页

作者： Liru Yao Huixuan Yan Yifan He Nan Zhao Xiuxiu Wang Chensha Li Liguo Sun Yang He Yanju Liu Jianqi Zhang Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of China Heilongjiang University 150080HarbinP.R.China Institute of regulatory science Beijing Technology and Business University 100048BeijingP.R.China Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion School of Chemistry and Material Science Heilongjiang University 150080HarbinP.R.China Center for Composite Materials and Structures Harbin Institute of Technology(HIT)150080HarbinP.R.China Department of Astronautical Science and Mechanics Harbin Institute of Technology(HIT)150001HarbinP.R.China Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology 100190BejingP.R.China

Liquid crystalline elastomers(LCEs)have been utilized as an important class of smart actuator ***,the modest actuation mechanical and robustness performances remain a *** by the specific structures,well mechanical properties and physico-chemical characteristics of some natural plant fibers,a composite of thiol-acrylate main-chain LCE matrix incorporated with catkin fibers is designed and *** catkin fibers build a network as reinforcement phase,and demon-strate effective compatibility and integration property with the matrix,their high flexibility can be adapted to the large deforma-tional performance of LCE *** prepared LCE composite demonstrates strong mechanical actuation *** mod-ulus and driving force triggered by the stimuli are obviously *** tensile strength and fatigue failure resistant prop-erty under high loadings and repeated cycles of thermal actua-tion or photothermal actuation are greatly *** the stimulus response deformation rate,phase transition temperature and liquid crystal phase structure of the LCE matrix,and so on,do not weaken or *** work promotes the LCE materi-als’application potential and broadens the application value of natural plant fibers.

关键词： Liquid crystalline elastomer catkin fibers reinforcement materials smart composites mechanical actuation

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Redox-responsive micelles integrating catalytic nanomedicine and selective chemotherapy for effective tumor treatment

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Chinese Chemical Letters 2021年第10期32卷 3076-3082页

作者： Ronghua Jin Zhongning Liu Tao Liu Pingyun Yuan Yongkang Bai Xin Chen School of Chemical Engineering and Technology Shaanxi Key Laboratory of Energy Chemical Process IntensificationInstitute of Polymer Science in Chemical EngineeringXi'an Jiao Tong UniversityXi’an 710049China Pharmaceutical College Guangxi Medical UniversityBeijing 100081China Department of Prosthodontics Peking University School and Hospital of StomatologyNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Key Laboratory of Digital StomatologyNanning 530021China

Chemotherapy is one of the most conventional modalities for cancer ***,the high multidrug resistance of tumor cells still limited the clinical application of current *** the ability of nitric oxide(NO) to modulate potent P-glycoprotein to inhibit multi-drug resistance,a synergistic methodology combining chemotherapy and sustained NO generation is an ideal way to further promote the ***,a multi-functional micelle with tumor-selective chemotherapy driven by redox-triggered doxorubicin(DOX) release and drug resistance inhibition based on intracellular NO generation was fabricated for effective tumor *** micelle consists of DOX as core,arginine/glucose oxidase(Arg/GOx) as shell and redox-responsive disulfide bond as a linker,which is denoted as *** Arg serves as the biological precursor of nitric oxide for inhibition of multi-drug resistance to promote chemotherapy and GOx catalyzes glucose to produce hydrogen peroxide(H_(2) O_(2)) for increasing the generation of ***,the glucose supply could be simultaneously blocked by the catalytic process,which further enhanced therapeutic *** micelle requests a tumor-specific microenvironment(a considerable amount of GSH) to perform synergistic therapeutics including chemotherapy,starvation therapy(catalytic medicine),and gas therapy for tumor treatment,which resulted in significant cytotoxicity to tumor tissue.

关键词： Chemotherapy Gas therapy Starvation therapy Carrier-free Tumor treatment

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Microstructural Evolution and Carbides Precipitation Behavior and Their Effects on Mechanical Property of Nb-Ti Microalloyed Fb590 Steel

SSRN

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SSRN 2024年

作者： Zheng, Yaxu Chu, Shaokang Yang, Qin Lin, Yu Zhu, Liguang Li, Yongliang Guo, Zhihong Zhang, Di Cao, Ruifang Feng, Jie Wang, Bo School of Material Science and Engineering Hebei Short Process Steel Making Technology Innovation Center Hebei Key Laboratory of Material Near-Net Forming Technology Hebei University of Science and Technology Shijiazhuang050018 China QuesTek Innovations EvanstonIL United States College of Materials Science and Engineering Chongqing University Chongqing400045 China Rolling operation department Beijing Shougang Co. LTD. Tangshan064404 China Hebei University of Science and Technology China

Ferrite-bainite dual phase steels have been widely used in automobile manufacturing industry due to their high strength and excellent hole expansion performance. In this study, the effects of coiling temperature on mechanical properties and hole expansion performance of low carbon Nb-Ti micro-alloyed FB590 ferrite-bainite steel have been studied. Additionally,, the microstructure evolution and carbide precipitation behavior during hot rolling and coiling processes have been investigated. The influence mechanism of microstructures and carbides on both mechanical properties and hole expansion performance has also been discussed. The results suggest that the fraction of the retained austenite and the martensite decreases gradually with increasing coiling temperatures from 450℃ to 500℃. The main reason for the formation of martensite and retained austenite in steel 1# coiled at 450℃ is that the coiling temperature is in the martensitic transformation range. Increasing the coiling temperature to 500℃ which is above the Ms leads to ferritic and bainitic structure. The carbides precipitation behavior has been studied by TEM, thermodynamic and kinetics calculation. The results show that the size of the carbides increases with increasing coiling temperatures from 450°C to 500°C. Most of the large size carbides above 100 nm with high percent of Ti are the undissolved particles in austenite during slab heating. The medium size particles between 10 nm and 100 nm precipitate during hot rolling. The small size carbides below 10 nm with high percent of Nb precipitate during coiling. The strength of the steel is effectively increased by the fine carbides and martensite formed at low coiling temperature of 450°C. However, the fine carbides, martensite and residual austenite are bad for plasticity and hole expansion performance. Raising the coiling temperature of FB590 steel from 450℃ to 500°C can effectively reduce the content of martensite and retained austenite in the steel. Altho

关键词： Microalloying

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Revealing Quasi-1D Volume Expansion in Na-/K-Ion Battery Anodes:A Case Study of Sb_(2)O_(3)Microbelts

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CCS Chemistry 2021年第5期3卷 1306-1315页

作者： Zheng Yi Daliang Fang Wanqun Zhang Jie Tian Shimou Chen Jianbo Liang Ning Lin Yitai Qian Department of Applied Chemistry Hefei National Laboratory for Physical Science at MicroscaleUniversity of Science and Technology of ChinaHefei 230026 Beijing Key Laboratory of Ionic Liquid Clean Process CAS Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190 Chemistry Experiment Teaching Center University of Science and Technology of ChinaAnhuli 230026 Experimental Center of Engineering and Material Science University of Science and Technology of ChinaHefei 230026 Department of Chemistry Capital Normal UniversityBeijing 100048

Tailoring a rational structure to control the huge volume variation is practical in regulating alkali-ion battery performance on the basis of the anisotropic properties of crystallized anode ***,a double-serrated orthorhombic antimony oxide(Sb_(2)O_(3))microbelt was prepared by a thermally induced recrystallization/sublimation *** situ transmission electron microscopy(TEM),in situ X-ray powder diffraction(XRD),and ex situ scanning electron microscopy(SEM)measurements demonstrate that Sb_(2)O_(3)microbelts exhibit a quasi-one-dimensional expansion perpendicular to the belt(along the[100]direction)during *** unconstrained microbelt surface space can appropriately accommodate the oriented volume ***,Sb_(2)O_(3)microbelts exhibit enhanced cycling and rate performance in half-cell sodium-ion batteries *** support of reduced graphene oxide(RGO),Sb_(2)O_(3)@RGOcomposites deliver good rate capability(312.3 mAh g−1 at 3 A g−1)for sodium-ion full-cell batteries and good cycling performance(473.9 mAh g−1 at 100 mA g−1 after 100 cycles)for half-cell potassium-ion *** situ Raman measurements reveal that the conversion/alloying-type Sb_(2)O_(3)anode undergoes a fully reversible alloying reaction and partially reversible conversion mechanism,which explains its irreversible capacity during the first *** delicate structural design and clarification of the alkali-ion storage mechanisms facilitate the development of Sb_(2)O_(3)anodes for energy storage applications.

关键词： anisotropic volume expansion microbelts Sb_(2)O_(3) sodium-ion batteries in situ characterizations

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