检索结果-内蒙古大学图书馆

NASICON solid electrolyte coated by indium film for all-solid-state Li-metal batteries

Tungsten 2022年第4期4卷 316-322页

作者： Yi-Jie Liu Ru-Yi Fang David Mitlin Materials Science and Engineering Program and Texas Materials Institute The University of Texas at AustinAustinTX78712USA

The application of all-solid-state Li-metal batteries with solid oxide electrolytes is hindered by interfacial issues,especially the solid electrolyte/Li-metal *** work introduced a uniform indium film layer on the surface of Na^(+)super ionic conductor(NASICON)solid electrolyte Li_(1.5)Al_(0.5)Ge_(1.5)P_(3)O_(12)(LAGP),which promotes the intimate contact between Li metal and solid electrolyte and hinders the side reactions at the *** impedance spectra show that the battery with coated solid electrolyte presents a smaller interfacial resistance and maintains stability after a long cycling *** contrast,the baseline battery with a pure LAGP pellet shows a contact loss after cycling with the vibration of interfacial *** Li symmetric cells with indium-modified solid electrolyte present stable cycling behavior over 400 h at 0.1 and 0.2 mA·cm^(−2).The all-solid-state Li-metal batteries with a Li anode,indium coating LAGP and two kinds of cathodes,namely carbon nanotubes(CNTs)and LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811),are prepared and *** CNTs cathode for Li-O2 and Li-air batteries has a higher specific capacity than traditional Li-ion battery *** Li-NCM811 batteries deliver an initial Coulombic efficiency of about 75%,with 82%capacity retention after 20 cycles.

关键词： All-solid-state batteries Solid electrolyte Li1.5Al0.5Ge1.5P3O12 Li-metal anode Interfacial chemistry

来源：评论

学校读者我要写书评

暂无评论

Advanced landfill leachate treatment: Sequential electrocoagulation and electrooxidation system for efficient remediation

引用

Journal of Water Process engineering 2025年 74卷

作者： Justen, Nicóli Borba, Fernando H. Mayer, Ildemar Seibert, Daiana Inticher, Jonas J. Ferreira Piazzi Fuhr, Ana C. Carissimi, Elvis Leichtweis, Jandira Postgraduate Program of Environment and Sustainable Technologies Federal University of Fronteira Sul Av. Jacob Reinaldo Haupenthal 1580 RS Cerro Largo 97900-000 Brazil Postgraduate Program of Chemical Engineering West Paraná State University Rua da Faculdade 645 Jd. Santa Maria PR Toledo 85903-000 Brazil Materials Science and Engineering Graduate Program Federal University of Pelotas 1 Gomes Carneiro St. RS Pelotas 96010-610 Brazil Department of Sanitation and Environmental Engineering Federal University of Santa Maria Av. Roraima 1000 RS Santa Maria 97105-000 Brazil

The treatment of concentrated landfill leachate generated by nanofiltration and reverse osmosis processes represents a significant challenge. This concentrate is characterized by high concentrations of heavy metals, contaminants of emerging concern, dissolved salts, and organic compounds. In this study, a novel advanced treatment system integrating an Electrocoagulation Reactor with a subsequent electrooxidation process was proposed. Two anode/cathode arrangements were evaluated: electrocoagulation followed by electrooxidation with “boron-doped diamond” and steel electrodes, and electrocoagulation followed by electrooxidation with “boron-doped diamond” and aluminum electrodes, focusing on their effectiveness in degrading contaminants and improving the quality of the treated concentrated landfill leachate. In order to monitor the efficiency of the electrocoagulation process and integrated systems, the degradation of the physicochemical parameters of absorbance at 254 nm, total organic carbon, and turbidity were investigated. Within the best performance, acute toxicity indices (Artemia salina - LC50) were determined and possible degradation and/or formation of contaminants of emerging concern were identified by gas chromatography–mass spectrometry (GC–MS). The results indicated the mineralization of 73 % of total organic carbon and 25 % of total nitrogen, an increase in the biodegradability fraction (BOD5/COD) of the concentrated landfill leachate from 0.18 to 0.35, as well as a significant reduction in toxicity (LC50 of 54.4 %), demonstrated by Artemia salina bioassays. The reduction in toxic potential was also observed in the by-product analysis by GC–MS, which indicated the removal of emerging contaminants such as benzene, 2-(2-methoxy-1-propenyl)-1,3,5-trimethylbenzene, benzothiazole, 2-(methylthio) and phenol, 2,2′-methylenebis[6-(1,1-dimethylethyl)-4-methyl-. These findings highlight that the integration of the electrocoagulation process with electrooxidation us

关键词： Concentrated landfill leachate Contaminants of emerging concern Electrocoagulation Electrooxidation

来源：评论

学校读者我要写书评

暂无评论

Study of doxorubicin release carried out by pH-responsive chitosan-alginate hydrogels

引用

Journal of Molecular Liquids 2025年 429卷

作者： Oliveira, Thayane Portela da Silva, Jhaemely Gabrielly Vieira Costa, Paloma Maia de Oliveira, Maykol Christian Damasceno Coelho, Ronaldo Cunha Santos Nascimento, Ariane Maria Silva Silva-Filho, Edson Cavalcanti dos Santos, Francisco Eroni Paz Muniz, Edvani Curti Postgraduate Program in Engineering and Materials Science Federal University of Piauí PI Teresina64049550 Brazil Physics Department Federal University of Piauí PI Teresina64049550 Brazil Department of Teacher Training Instituto Federal do Piauí PI Teresina64053-390 Brazil Chemistry Department Federal University of Piauí PI Teresina64049550 Brazil Chemistry Department State University of Maringá PR Maringá87020-900 Brazil

The use of polysaccharides in drug delivery systems has attracted increasing interest due to their functional properties. Among these, alginate (ALG) and chitosan (CH) are promising candidates for sustained drug delivery as they respond to pH, ensuring that the compound is released in a desired area. In this research physical hydrogels based on alginate and chitosan (ALG/CH) were prepared by varying the synthesis parameters (ALG at ALG/CH ratio, pH and speed stirring) and the effects of such parameters on hydrogels’ chemical and physical structure were accessed through several techniques. Also, the effects synthesis parameters on fractional release (Fmax), half time (t1/2) and percentage encapsulation efficiency (EE%), as the evaluated responses, were statically measured using a factorial design. Analysis through Raman and FTIR spectroscopies revealed the modes and bands corresponding to the precursors, confirming the formation of physically cross-linked hydrogels. The porous structure of the materials was confirmed by scanning electron microscopy (SEM). The swelling capacities of the hydrogels were analyzed at different pHs (5.4 and 7.4) and demonstrated that absorption increases in slightly acidic media. TG/DTG and Micro-CT analyzes of the sample with the greatest swelling showed that the degradation of the hydrogel occurs in two endothermic events and that the material possesses several sized and interconnected pores. The doxorubicin (DOX) release study showed that the release rate is higher as the higher proportion of CH relative to ALG. The factorial design analysis indicated the statistically significant factors in the DOX release tests. Thus, the results suggest that ALG/CH hydrogels can be tuned during their preparation to achieve optimal structure for pH-responsive to be applied for DOX releasing system. © 2025 Elsevier B.V.

关键词： Microgels

来源：评论

学校读者我要写书评

暂无评论

Effect of initial orientation on microstructure and mechanical properties of AZ31 Mg alloy sheets via accumulated extrusion bonding

引用

Progress in Natural science:materials International 2023年第2期33卷 178-184页

作者： Xia Cao Tingzhuang Han Ji Xu Guangsheng Huang Hua Zhang Jianhui Bai Fusheng Pan Department of Mechanics and Surface Engineering Changzhou Institute of Technology Department of Aviation Manufacturing Engineering Changzhou Institute of Technology State Key Laboratory of Solidification Processing School of Materials Science & Engineering Northwestern Polytechnical University State Key Laboratory of Mechanical Transmission College of Materials Science and Engineering Chongqing University Institute for Advanced Studies in Precision Materials Yantai University

In this study, effects of initial orientation on microstructure evolution and mechanical properties of AZ31 Mg alloy sheets via accumulated extrusion bonding(AEB) was systematically studied. The samples with RD and TD parallel to extrusion direction(ED) were labeled as RED and TED, respectively. RD and TD pieces alternately stacked was named as RTED. The results revealed that under three-dimensional compressive stress, {10-12} tensile twinning dominated the first stage deformation in container. As the plunger continuous press down, dynamic recrystallization(DRX) occurred, and the newly fine DRXed grains along original and twin grain boundaries gradually consumed the matrix and twin grains. The microstructure was completely transformed into recrystallized grain structure at sizing band with an average grain size of ～0.9 μm in TED sample, smaller than that of RED *** the alloys extruded out of the die, DRXed grains significantly grew to ～4.5 μm and 3.5 μm for RED and TED samples, respectively. A laminated microstructure was obtained with average grain sizes of～4.4 μm in RD layers and 3.5 μm in TD layers for RTED sample. The AEB processed samples exhibited an ED-tilt double-peak basal texture with similar texture intensity. The tensile tests results indicated that attributed to the combined effect of grain refinement and texture evolution, the yield strength and fracture elongation of RED and TED samples was significantly improved. The heterogeneous microstructure in RTED sample induced an extra work hardening(HDI-work hardening) in tensile deformation and resulted in a further improved elongation of 32.0%.

关键词： Magnesium alloy Accumulated extrusion bonding Initial orientation Microstructure Texture Mechanical properties

来源：评论

学校读者我要写书评

暂无评论

Multifunctional Zeolites for Rechargeable Lithium-Based Batteries: Progress and Perspectives

引用

Energy Storage materials 2025年

作者： Jiahui Zhang Qian Wu Rongchuan Cao Yuanhang Wang Yang Shao Di Yi Yaoyu Ren Lingqiao Wu Ce-Wen Nan Xi Chen Haijun Yu Liangliang Li State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China Key Laboratory for Advanced Materials Processing Technology School of Materials Science and Engineering Tsinghua University Beijing 100084 China Institute of Advanced Battery Materials and Devices College of Materials Science and Engineering Beijing University of Technology Beijing 100124 China School of Interdisciplinary Studies Lingnan University Tuen Mun Hong Kong SAR China

As a representative electrochemical energy storage technology, rechargeable lithium (Li)-based batteries, such as lithium-ion batteries, lithium-oxygen batteries, lithium-sulfur batteries, and lithium metal batteries, are being intensively investigated. However, many issues, such as the dissolution of transition-metal ions, the shuttle effect of redox mediators and polysulfides, and slow ionic conduction in solid electrolytes, persist in these batteries, leading to the degradation of their electrochemical performance. Zeolites, with their various channel/pore structures, possess many advantages, including excellent molecular sieving capability, high cost-effectiveness, and efficient adsorption abilities. Therefore, these multifunctional materials are highly promising for addressing the challenges faced by rechargeable Li-based batteries. In this review, we summarize the recent progress in the application of multifunctional zeolites for Li-based batteries. We then thoroughly discuss the roles of zeolites that are crucial for enhancing the electrochemical performance of these batteries. Finally, we provide insightful perspectives on the development of high-performance zeolites for Li-based batteries. This review offers guidance for improving the electrochemical performance of Li-based batteries and other electrochemical energy storage devices by implementing zeolites with novel properties.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Transformation toughening in the gamma-TiAl-beta-Ti-V system .1. Finite element analysis of a crack touching the interface

引用

JOURNAL OF materials science 1997年第18期32卷 4865-4874页

作者： Grujicic, M Dang, P Program in Materials Science and Engineering Department of Mechanical Engineering Clemson University 241 Flour Daniel Building Clemson SC 29634–0921 USA

Atomistic simulation of transformation toughening due to martensitic transformation in Ti-V phase particles dispersed in a gamma-TiAl matrix containing cracks requires knowledge of the continuum elastic stress and displacement fields for the problem of a crack touching the gamma-beta interface. Because of the anisotropic characters of the two phases, analytical solutions for these fields are not available and they must be determined numerically. In the present paper a finite element method-based eigenanalysis is developed and subsequently applied to the gamma-beta system to determine the order of the stress singularity and the angular dependences of the stress and displacement fields. These fields are subsequently used to enrich the finite elements surrounding the crack tip and, through the use of the general finite element code ABAQUS, to determine the generalized stress intensity factors and thus the total singular crack-tip stress and displacement fields. It is found that there are two coupled singular terms in the singular stress and displacement fields, and consequently pure (uniaxial) mode I loading gives rise to mixed modes I-II near-crack-tip behaviour.

关键词： Titanium alloys

来源：评论

学校读者我要写书评

暂无评论

Fabrication of self-repairing and low-swelling polymer network via dynamic boronic ester bonds for enhanced membranes longevity and stability

引用

Journal of Industrial and engineering Chemistry 2025年

作者： Im, Gahee Ahn, Dowon Adhikari, Bhupen Sim, Uk Seo, Sungbaek Lee, Duck Hyun Kwon, Gibum Department of Mechanical Engineering University of Kansas Lawrence 66045 KS United States Center for Specialty Chemicals Korea Research Institute of Chemical Technology (KRICT) Ulsan 44412 South Korea Department of Energy Engineering Korea Institute of Energy Technology (KENTECH) Jeollanam-do Naju 58330 South Korea Department of Biomaterials Science (BK21 FOUR Program) College of Natural Resources and Life Science/Life and Industry Convergence Research Institute Pusan National University Gyeongsangnam-do Miryang 50463 South Korea School of Advanced Materials & Electrical Engineering Industrial Technology Center for Environment-Friendly Materials Andong National University Gyeongsangbuk-do Andong 36729 South Korea

Membrane technology has become a promising solution for a wide range of separation processes, including wastewater treatment, solvent recovery, and oil–water separation, due to its low energy consumption, cost-effectiveness, and minimal space needs. However, membrane damage caused by suspended pollutants or improper handling remains a challenge, often leading to decreased filtration capability and the need for replacement of membrane modules. Self-repairing membranes have emerged as a new solution, with various materials demonstrating autonomous healing properties through dynamic bonds such as hydrogen bonds or boronic ester bonds. However, many of these self-repairing membranes suffer from excessive swelling in water, compromising their mechanical stability. Herein, we report a self-repairing and low-swelling polymer network based on dopamine acrylamide (DA) and n-butyl acrylate (BA), crosslinked with p-phenylenediboronic acid (PDBA). The boronic ester bond formation between catechol and boronic acid groups confers self-healing properties to the polymer, while the hydrophobic nature of BA minimizes swelling in water. The polymer exhibits a low swelling ratio of 2.1% after 7 days of submersion in water. A cellulose-based filter paper coated with the polymer demonstrated that it can recover its water flux up to 91% after repairing damage. Lastly, an ultrafiltration polyethersulfone (PES)-based filter coated with the polymer demonstrated that it recovers its solute rejection capability after repairing damage. © 2025 The Author(s)

关键词： Boronic ester bonds Low swelling Poly(dopamine acrylamide-co-butyl acrylate) Self-repairing filter

来源：评论

学校读者我要写书评

暂无评论

INFLUENCE OF MORPHOLOGY ON THE FATIGUE PROPERTIES OF POLYPROPYLENE

引用

JOURNAL OF APPLIED POLYMER science 1985年第11期30卷 4495-4498页

作者： RUNT, J HANRAHAN, BD Polymer Science Program Department of Materials Science and Engineering Pennsylvania State University University Park Pennsylvania 16802

Considering the practical importance of fatigue in determining material usefulness, we have undertaken a program to elucidate the influence of semicrystalline morphology on fatigue. This note reports some of our initi... 详细信息

关键词： POLYPROPYLENE

来源：评论

学校读者我要写书评

暂无评论

A molecular dynamics study of transformation toughening in the gamma TiAl/beta Ti-V system

引用

materials science AND engineering A-STRUCTURAL materials PROPERTIES MICROSTRUCTURE AND PROCESSING 1996年第1-2期219卷 109-125页

作者： Grujicic, M Dang, P Program in Materials Science and Engineering Department of Mechanical Engineering 241 Flour Daniel EIB Clemson University Clemson SC 29634-0921 USA

The materials evolution in a region surrounding the crack tip was carried out using molecular dynamics simulations for the case of a crack in the gamma TiAl phase impinging at the right angle onto the interface between a gamma TiAl phase and a metastable Ti-15V (at.%) phase. The corresponding linear anisotropic continuum solutions for the singular stress and displacement fields were developed using an enriched finite element method. These solutions were used to both generate the initial crack and to prescribe the boundary conditions applied to the computational atomistic crystal during the molecular dynamics simulation runs. The atomic interactions were described in terms of the appropriated embedded atom method (EAM) type interatomic potentials. The crack-tip behavior for the two-phase gamma/beta material was ultimately compared with the one in the corresponding single phase gamma and single phase beta materials. The simulation results showed that under the same applied level of external stress, the crack tip becomes blunted and the crack stops propagating in the gamma TiAl/beta Ti-15V bicrystal and in the single beta-phase crystal while the crack extends by brittle cleavage in the single-phase gamma crystal. The blunting process was found to be controlled by the martensitic transformation which takes place in the beta phase ahead of the crack tip. Depending on the local stress conditions, which are significantly affected by the presence of interfacial dislocations, the crystal structure of martensite was found to be either close packed hexagonal, body centered orthorhombic and/or face centered orthorhombic. Finally, the implications of crack tip martensitic transformation on materials toughness are analyzed in quantitative terms using the concept of the Eshelby's conservation integral, i.e. the energy release rate.

关键词： embedded atom method gamma TiAl phase interatomic potentials

来源：评论

学校读者我要写书评

暂无评论

BINDING ENTHALPIES AND ENTROPIES OF NEUTRAL ZN, IN AND SN IN GE

引用

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 1985年第8期46卷 963-976页

作者： SU, CH BREBRICK, RF Materials Science and Metallurgy Program College of Engineering Marquette University Milwaukee WI 53233 U.S.A.

A statistical thermodynamical model is developed for a doubly ionizable acceptor with excited states in an elemental semiconductor. The special cases of a singly ionizable acceptor, no excited acceptor states and a neutral solute are readily extracted. The equations obtained describe not only the distribution of an acceptor among its various electronic states but also the chemical potentials of the acceptor atom and of the solvent atom. The equations are applied, with and without the excited states included, to obtain about equally good fits to the low-temperature, low carrier concentration Hall data for Zn in Ge. For the low impurity concentrations involved, the excited states are present and so should be included in the analysis. The ability to obtain an equally good fit with the excited states omitted is most likely due to the fact that the concentrations of the major Zn impurity and the Sb counter dopant are not fixed independently of the Hall measurements. The additional flexibility obtained by treating these concentrations as adjustable parameters is sufficient to compensate for the error made in neglecting the excited states. In contrast, the solubilities of the acceptors Zn and In are large enough that the excited states should be pushed out of the band gap. Consequently, the equations are applied without the excited states to the experimental chemical potential-solubility data for Zn, In and Sn in Ge to obtain the Gibbs energy, enthalpy and entropy of binding for the neutral (un-ionized) solute at 950 K. With a solute reference phase consisting of an ideal monatomic gas at 0 K, the entropy of binding is close to that for Ge itself, 14.6 cal K g atom. This implies that, when they are in the neutral state, these substitutional solute atoms behave very much like the Ge atom itself in contributing to the vibrational spectrum. However, the enthalpy of binding varies significantly and is −3.8, −39 and −65 kcal g atom for neutral Zn, neutral In and Sn, respectivel

关键词： GERMANIUM COMPOUNDS

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：