检索结果-内蒙古大学图书馆

2D layered black arsenic-phosphorus materials:Synthesis,properties,and device applications

Nano Research 2022年第4期15卷 3737-3752页

作者： Junchuan Liang Yi Hu Kaiqiang Zhang Yaoda Wang Xinmei Song Anyang Tao Yuzhu Liu Zhong Jin MOE Key Laboratory of Mesoscopic Chemistry MOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Shenzhen Research Institute of Nanjing University Shenzhen 518063China

Phosphorene,especially black phosphorus(BP),has attracted considerable attention due to the unique characteristics,such as tunable direct bandgap,high carrier mobility,and strong in-plane ***,a new modification strategy for black phosphorus has been developed by alloying black phosphorus with the congener element *** elemental composition tuning of black phosphorus with arsenic can not only maintain its special crystal structure and high anisotropy but also modify its electrical and optical properties for the further applications of multifunctional *** achieved two-dimensional(2D)black arsenic-phosphorus materials exhibit outstanding optical,electrical,and photoelectric properties,such as very narrow band gap,anisotropic infrared absorption,and bipolar transfer characteristics,presenting great potential in infrared photodetectors and highperformance field effect transistors(FETs).In this review,we introduce the recent progress made in the synthesis and applications of black arsenic-phosphorus,and provide an outlook and perspectives on the current challenges and future opportunities in this *** hope that this review can bring new insights and inspirations on the further development of 2D black arsenic-phosphorus based materials and devices.

关键词： black arsenic-phosphorus two-dimensional(2D)materials black phosphorus field effect transistors mid-infrared photodetectors

来源：评论

学校读者我要写书评

暂无评论

Efficient screening framework for organic solar cells with deep learning and ensemble learning

引用

npj Computational Materials 2023年第1期9卷 295-305页

作者： Hongshuai Wang Jie Feng Zhihao Dong Lujie Jin Miaomiao Li Jianyu Yuan Youyong Li Institute of Functional Nano&Soft Materials(FUNSOM) Soochow University199 Ren’ai RoadSuzhou 215123 JiangsuPR China Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University199 Ren-Ai RoadSuzhou Industrial ParkSuzhouJiangsu 215123PR China School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic ScienceTianjin UniversityTianjin 300072China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123 JiangsuPR China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyTaipa999078 MacaoSARChina

Organic photovoltaics have attracted worldwide interest due to their unique advantages in developing low-cost,lightweight,and flexible power *** molecular design and synthesis have been put forward to accelerate the discovery of ideal organic ***,it is extremely expensive to conduct experimental screening of the wide organic compound *** we develop a framework by combining a deep learning model(graph neural network)and an ensemble learning model(Light Gradient Boosting Machine),which enables rapid and accurate screening of organic photovoltaic *** framework establishes the relationship between molecular structure,molecular properties,and device *** framework evaluates the chemical structure of the organic photovoltaic molecules directly and *** it does not involve density functional theory calculations,it makes fast *** reliability of our framework is verified with data from previous reports and our newly synthesized organic *** work provides an efficient method for developing new organic optoelectronic materials.

关键词： materials ensemble verified

来源：评论

学校读者我要写书评

暂无评论

Electronegativity-Induced Single-Ion Conducting Polymer Electrolyte for Solid-State Lithium Batteries

引用

Energy & Environmental Materials 2023年第4期6卷 40-48页

作者： Tianyi Hou Yumin Qian Dinggen Li Bo Xu Zhenyu Huang Xueting Liu Haonan Wang Bowen Jiang Henghui Xu Yunhui Huang State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement Ministry of EducationSchool of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Energy and Power Engineering Huazhong University of Science and TechnologyWuhan 430074China Jiangsu Jitri-Hust Intelligent Equipment Technology Nanjing 210000China

The application of solid polymer electrolytes(SPEs)is severely impeded by the insufficient ionic conductivity and low Li^(+)transference numbers(t_(Li)^(+)).Here,we report an iodine-driven strategy to address both the two longstanding issues of SPEs *** lodine-containing groups introduced on polymer chains effectively attract Li^(+)ions,facilitate Li^(+)transport,and promote the dissociation of Li ***,iodine is also favorable to alleviate the strong O-Li^(+)coordination through a Lewis acidbase interaction,further improving the ionic conductivity and t_(Li)^(+).As a proof of concept,an iodinated single-ion conducting polymer electrolyte(IPE)demonstrates a high ionic conductivity of 0.93 mS cm^(-1)and a high t_(Li)^(+)of 0.86 at 25℃,which is among the best results ever reported for ***,symmetric Li/Li cells with IPE achieve a long-term stability over 2600 h through the in-situ formed LiF-rich *** a result,Li-S battery with IPE maintains a high capacity of 623.7 mAh g^(-1)over 300 cycles with an average Coulombic efficiency of 99%.When matched with intercalation cathode chemistries,Li/IPE/LiFePO_(4)and Li/IPE/LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)solid-state batteries also deliver high-capacity retentions of 95%and 97%at 0.2 C after 120 cycles,respectively.

关键词： iodine lithium polymer electrolytes single-ion conducting solid-state batteries

来源：评论

学校读者我要写书评

暂无评论

Dealuminated Hβ zeolite for selective conversion of fructose to furfural and formic acid

引用

Green Energy & Environment 2024年第2期9卷 311-320页

作者： Rui Li Qixuan Lin Junli Ren Xiaobao Yang Yingxiong Wang Lingzhao Kong State Key Laboratory of Pulp and Paper Engineering School of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China Institute of Coal Chemistry Chinese Academy of Sciences27 South Taoyuan RoadTaiyuan030001China CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai201210China School of Environmental Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu215009China

The fructose-to-furfural transformation is facing major challenges in the selectivity and high efficiency. Herein, we have developed a simple and effective approach for the selective conversion of fructose to furfural using Hβ zeolite modified by organic acids for dealuminization to regulate its textural and acidic properties. It was found that citric acid-dealuminized Hβ zeolite possessed high specific surface areas, wide channels and high Brønsted acid amount, which facilitated the selective conversion of fructose to furfural with a maximum yield of 76.2% at433 K for 1 h in the γ-butyrolactone(GBL)-H_(2)O system, as well as the concomitant formation of 83.0% formic acid. The^(13)C-isotope labelling experiments and the mechanism revealed that the selective cleavage of C1–C2 or C5–C6 bond on fructose was firstly occurred to form pentose or C5 intermediate by weak Brønsted acid, which was then dehydrated to furfural by strong Brønsted acid. Also this dealuminized Hβ catalyst showed the great recycling performance and was active for the conversion of glucose and mannose.

关键词： Fructose Dealuminated-Hb zeolite Selective conversion Furfural

来源：评论

学校读者我要写书评

暂无评论

A Contactless Magnetic Frequency-Boosting Mechanism for Wind Energy Harvesting

A Contactless Magnetic Frequency-Boosting Mechanism for Wind...

引用

Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)

作者： Yunfei Li Manjuan Huang Tianyi Tang Heng Zhao Lining Sun Huicong Liu State Key Laboratory of Robotics and System Harbin Institute of Technology (HIT) CHINA School of Mechanical and Electric Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics Soochow University CHINA

ISBN: (数字)9798350380200

ISBN: (纸本)9798350380217

This paper presents a non-contact magnetic frequency-boosting wind energy harvester suitable for low wind speed environments, designed to power various IoT sensors. The device comprises a driving component, a driven component, and a stator component. These components work together to convert low-speed rotational motion caused by wind into high-speed rotational motion, thereby achieving high-power electromagnetic energy output. Performance tests have shown that the output voltage increases with wind speed, reaching a peak voltage of 27V and a peak power of 1.6W at a wind speed of 10 m/s. The device has successfully powered LED bulbs and Bluetooth sensors, demonstrating its practicality for real-time environmental monitoring applications.

关键词： Temperature sensors Wind energy Wind speed Magnetic sensors Voltage Stators Sensor systems Environmental monitoring Electromagnetics Power generation

来源：评论

学校读者我要写书评

暂无评论

Effects of Solution Temperature on Microstructure and Properties of Zn-2Cu-0.8Mg Alloy 10

Effects of Solution Temperature on Microstructure and Proper...

引用

10th International Conference on Advances in Machinery, Material Science and Engineering Application, MMSE 2024

作者： Gu, Shenyi Zhang, Yan Wang, Hongxing Zhang, Xinxiang Zhou, Tao Zhen, Zhihao Li, Yaoyang Zhang, Xize School of Materials Science and Engineering Nanjing Institute of Technology Nanjing211167 China Key Laboratory of Advanced Structural Materials and Application Technology of Jiangsu Province Nanjing211167 China

ISBN: (纸本)9781643685465

Zn-2Cu-0.8Mg zinc alloy was prepared by metal mold casting. The effects of solution temperature on the microstructure, corrosion behavior and mechanical properties of zinc alloy were studied. The results show that the microstructure of zinc alloy is mainly composed of η-Zn, Mg2Zn11 and a small amount of CuZn5 compounds. As the solution temperature increases, η-Zn content increases, the grain size increases, from dendrite to equiaxed crystal to coarsening;The tensile strength and elongation of the solid solution alloy are higher than those of the as cast alloy, and decrease with the increase of solution temperature. The alloy after 320°C solution treatment has the maximum values of mechanical properties, which are 396 MPa and 1.18% respectively, 1.3 and 1.8 times of those of as cast alloy;Fracture analysis shows that the fracture mode of zinc alloy is mainly cleavage fracture. The electrochemical test shows that the corrosion resistance of zinc alloy increases with the increase of solution temperature, and the self-corrosion current density of the alloy after 380°C solution treatment is the lowest, 14.965μ***-2. The corrosion rate is the lowest, 0.022mm/y. © 2024 The Authors.

关键词： Tensile strength

来源：评论

学校读者我要写书评

暂无评论

Coordinated control of decarbonization efficiency and oxygen absorption rate in Ruhrstahl–Heraeus degasser based on mechanism model and BP neural network

引用

Journal of Iron and Steel Research International 2025年第3期32卷 606-618页

作者： Lu-heng Jiang Min Wang Jia-qi Zhao Cheng Yao Li-dong Xing Xin-gang Ai State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China Technical Support Centre for Prevention and Control of Disastrous Accidents in Metal Smelting University of Science and Technology BeijingBeijing100083China Institute of Research of Iron&Steel Zhangjiagang215600JiangsuChina School of Materials and Metallurgy University of Science and Technology LiaoningAnshan114051LiaoningChina

A mathematical model of the decarburization reaction zone was established for the Ruhrstahl–Heraeus (RH) forced oxygen blowing decarburization process by Matlab R2022b software. For the problem of inaccurate prediction due to the large variation range of oxygen absorption rate under different process conditions, we statistically analyzed the main factors affecting the oxygen absorption rate. The backpropagation neural network was used to train and predict the oxygen absorption rate and was used to calculate the RH decarburization reaction zone model. We designed and developed a mathematical modeling software with process control of decarburization in RH degasser, which can realize the change of operating process parameters in the dynamic prediction process. The optimized mathematical model has more than 95% of the furnaces whose absolute error in calculation of carbon content is within ± 5 × 10^(−6), more than 90% of the heats whose relative error in calculation of oxygen content is within ± 15%, and the average absolute error of calculation of oxygen content is 26.4 × 10−6. Finally, we studied the influence of oxygen blowing timing, oxygen blowing volume and initial oxygen content on the forced decarburization process.

关键词： Ruhrstahl-Heraeus degasser Mathematical model Forced decarburization Oxygen absorption rate Process control

来源：评论

学校读者我要写书评

暂无评论

Recent advances in designing ZnIn_(2)S_(4)-based heterostructured photocatalysts for hydrogen evolution

引用

Journal of Materials Science & technology 2023年第8期139卷 167-188页

作者： Chao Liu Qinfang Zhang Zhigang Zou School of Materials Science and Engineering Yancheng Institute of TechnologyYancheng 224051China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYancheng 224051China Eco-Materials and Renewable Energy Research Centre(ERERC) School of PhysicsNanjing UniversityNanjing 210093China

Water and solar energy are inexhaustible on Earth,and thus hydrogen evolution through photocatalytic water splitting taking sunlight as the input energy is an ideal green energy generation *** a typical visible-light-responsive photocatalyst,ZnIn_(2)S_(4)attracted worldwide research attention because of its many advantages for photocatalytic hydrogen evolution(PHE),such as layered structure,simple syn-theses,structural stability,environmental friendliness,and suitable electronic band *** recent years,constructing ZnIn_(2)S_(4)-based heterostructured photocatalysts has become a research focus for their significantly improved spatial charge carrier separation efficiency and PHE *** to the charge carrier transfer/separation mechanisms,heterostructured ZnIn_(2)S_(4)-based photocatalysts are divided into five categories,conventional heterojunctions(type-I and type-II),p-n heterojunction,Z-scheme het-erojunction,S-scheme(or Step-scheme)heterojunction,and co-catalyst deposition based heterojunction *** article reviews the recent advances in ZnIn_(2)S_(4)-based heterostructured photocatalysts for ***,the central part of this review introduced various ZnIn_(2)S_(4)-based heterojunctions and their PHE ***,apart from common half-reaction of water-splitting,we expressly introduced overall water splitting,dual-functional and photothermal effect-assisted PHE ***,we briefly presented some identification methods for confirming heterojunction ***,the current states,challenges and perspectives of ZnIn_(2)S_(4)-based heterostructured photocatalysts for PHE are also *** review aims to explore the advantages of diverse ZnIn_(2)S_(4)-based heterostructures,and can provide an insight into designing high-efficiency heterostructured photocatalysts for PHE application.

关键词： Photocatalysis Photocatalytic hydrogen evolution ZnIn_(2)S_(4) Heterojunction Charge transfer mechanism S-scheme heterojunction

来源：评论

学校读者我要写书评

暂无评论

Pressure Distinguishes the Dual Emissions in Pseudohalide 2D Ruddlesden-Popper Perovskite Cs_(2)Pb(SCN)_(2)Br_(2)

引用

CCS Chemistry 2024年第7期6卷 1748-1756页

作者： Songhao Guo Yuhong Mao Congcong Chen Yao Zhang Guoxiang Zhao Kejun Bu Qingyang Hu Haiming Zhu Guifu Zou Wenge Yang Lingling Mao Xujie Lü Center for High Pressure Science and Technology Advanced Research(HPSTAR) Shanghai Department of Chemistry Southern University of Science and TechnologyShenzhen Department of Chemistry Zhejiang UniversityHangzhou College of Energy Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou

Two-dimensional(2D)Ruddlesden-Popper(RP)halide perovskites with diverse structures and properties have drawn increasing attention due to their promising optoelectronic ***,a new all-inorganic Cs_(2)Pb(SCN)_(2)Br_(2) has been reported that opens up new potential for the development of 2D RP ***,recent reports of unusual dual emissions and two-edge absorption in Cs_(2)Pb(SCN)_(2)Br_(2) have generated intense debate about its origin and remains ***,by combining continuous pressure tuning with in situ diagnostics,we have unambiguously revealed the underlying mechanisms that the 2D Cs_(2)Pb(SCN)_(2)Br_(2) exhibits an intrinsic blue emission at 2.66 eV and an absorption edge close to the emission *** the gradually formed CsPbBr_(3) is responsible for the green emission at 2.33 eV with the absorption shoulder at 2.41 ***,by fitting the temperature-dependent intensity of the intrinsic blue emission,we have determined the corrected value of exciton binding energy for 2D Cs_(2)Pb(SCN)_(2)Br_(2) to be 90 ***,an emission enhancement of 2.5 times is achieved in Cs_(2)Pb(SCN)_(2)Br_(2) under a mild pressure within 0.8 GPa,caused by the pressuresuppressed exciton-phonon *** work not only elucidates the origin of the dual emissions and two-edge absorption in Cs_(2)Pb(SCN)_(2)Br_(2),but it also provides a potential means to regulate and optimize the optoelectronic properties of 2D perovskites.

关键词： two-dimensional perovskite dual emissions two-edge absorption high pressure in situ characterization enhanced photoluminescence

来源：评论

学校读者我要写书评

暂无评论

3D reconstruction and path planning of complex parts for laser cladding 9

3D reconstruction and path planning of complex parts for las...

引用

9th International Conference on Image, Vision and Computing, ICIVC 2024

作者： Zhu, Hao Wang, Shaopeng School of Information and Communication Engineering Nanjing Institute of Technology Nanjing China Jiangsu Advanced CNC and Electric Power Transmission Key Laboratory Nanjing Institute of Technology Nanjing China

ISBN: (纸本)9798350385991

When laser cladding is performed on a free surface, the accuracy of 3D reconstruction of the parts and the planning of the cladding path have a significant impact on the machining quality. This article studies the path planning method for laser cladding curved parts, using a 3D scanner to obtain point cloud data on the blade surface. By using point cloud denoising and simplification algorithms to appropriately process the collected point cloud data, computational efficiency can be improved. Perform NURBS surface fitting on the target. Calculate and analyze the surface curvature characteristics of the parts. Slice the model based on the curvature feature values, and finally plan the cladding path. The actual machining test results of the engineering prototype show that the algorithm proposed in this paper can meet the actual machining requirements. © 2024 IEEE.

关键词： 3D reconstruction

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：