检索结果-内蒙古大学图书馆

International Conference on (ICEPT) Electronic Packaging technology

作者： Baohao Yang Jianhui Zeng Yucheng Jiang Jialin Zhang Meng Han Shuye Zhang Rong Sun Yimin Yao Shenzhen Institute of Advanced Electronic Materials Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China Nano Science and Technology Institute University of Science and Technology of China Suzhou China Guangdong Provincial Key Laboratory of New Metal Materials Preparation and Forming South China University of Technology Guangzhou China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin China Harbin Institute of Technology Zhengzhou Research Institute Zhengzhou China

ISBN: (数字)9798350353808

ISBN: (纸本)9798350353815

Thermal interface materials (TIMs) play a crucial role in managing heat transfer in electronics. However, the high-density chiplet packaging also poses challenges to the mechanical reliability of TIMs. The conventional organic silicon system faces technical hurdles such as poor flexibility and weak adhesion, necessitating the development of next-generation TIMs. Previous studies have demonstrated that poly(ionic liquid)s (PILs) exhibit superior adhesion and mechanical properties compared to conventional polymer matrices, alongside self-healing capabilities. These characteristics make PIL-based TIMs feasible. To further validate their practical viability, in-depth studies on their thermal, mechanical, and reliability properties are needed. In this study, we investigated the preparation and aging behavior of TIM based on poly(ionic liquid)s and liquid metal. These TIMs were synthesized by simply combining PILs with liquid metal in solvent, followed by drying. Their physical characteristics, including thermal conductivity and mechanical properties, were thoroughly analyzed. To assess the reliability via aging characteristics of PILs-based TIMs, we employed X-ray chip inspection system to observe coverage variations of TIMs under different aging conditions. Our results show that these TIMs exhibit excellent thermal stability. After high temperature storage aging tests, the coverage of pure P[OVIm]NTf 2 and P[OVIm]NTf 2 /LM (18 vol%) were maintained at 99.15% and 99.12%, respectively, with coverage decreases of only 0.84% and 0.71%. This minimal reduction in coverage demonstrates their suitability for practical applications. In summary, our study emphasizes the aging performance of poly(ionic liquid)s-based TIMs and underscores their potential as replacements for conventional organic silicon systems. This research provides valuable insights into the preparation of high-performance chip-level TIMs.

关键词： Liquids Adhesives Aging Electronic packaging thermal management Thermal force Stability analysis Silicon

来源：评论

学校读者我要写书评

暂无评论

Co/N-doped carbon nanotube arrays grown on 2D MOFs-derived matrix for boosting the oxygen reduction reaction in alkaline and acidic media

引用

Chinese Chemical Letters 2021年第2期32卷 816-821页

作者： Shuao Wan Jiadong Wu Depeng Wang Huiling Liu Zhicheng Zhang Jianmin Ma Cheng Wang Institute for New Energy Materials and Low-Carbon Technologies School of Materials Science and EngineeringTianjin Key Laboratory of Advanced Functional Porous Materials.Tianjin University of TechnologyTianjin 300384China Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of SciencesTianjin University&Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China School of Physics and Electronics Hunan UniversityChangsha 410082China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China

The development of high-performance and cost-effective electrocatalysts towards oxygen reduction reaction(ORR) is of significant importance,but still challenging for the practical applications in related energy *** process typically suffers from sluggish kinetics,the exploration of ORR electrocatalyst thus requires elaborate ***,an effective strategy is developed for growing Co/N-doped carbon nanotube arrays on 2D MOFs-derived matrix via the pyrolysis of Co/Zn metalorganic-framework(MOF) *** Co/Zn-MOF nanosheets serve as both the self-template for the 2D carbonized framework morphology and C/N source for the in-situ growth of 1D N-doped carbon *** constructed hie rarchical architecture effectively integrates the OD/1D Co nanoparticle/Ndoped carbon nanotube interface and 1D(nanotubes)/2D(nanosheets) junction into frameworks with highly exposed active surface,enhanced mass-transport kinetics and electrical *** a result,the designed composite exhibits superior ORR activity and durability in alkaline media as compared to commercial Pt/***,it shows promising ORR performance with a half-wave potential of 0.78 V versus reversible hydrogen electrode and negligible activity attenuation after 5000 potential cycles in acidic *** designed strategy can be extended to construct other MOFs-derived carbon matrixes with diverse hierarchical structures and provide an efficient avenue for searching highperformance electrocatalysts.

关键词： Carbon nanotube arrays Metal-organic-frameworks derived materials Metal/nitrogen-doped carbon electrocatalysts Oxygen reduction reaction Alkaline and acidic media

来源：评论

学校读者我要写书评

暂无评论

Highly Enhanced Electro-Catalytic Behavior of an Amide Functionalized Cu(Ii) Coordination Polymer on Oer at Large Current Densities

SSRN

引用

SSRN 2024年

作者： Afaq, Sheereen Ashiq, Faheem Shoukat, Wseem Malik, Wasif Mahmood Ahmed Ismail, Muhammad Ghafoor, Abdul Ashraf, Zohaib Sajjad, Muhammad Verpoort, Francis Chughtai, Adeel Hussain Institute of Chemical Sciences Bahauddin Zakariya University Multan60800 Pakistan Pakistan Moscow117198 Russia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center for Chemical and Material Engineering Wuhan University of Technology Wuhan430070 China

Extensive utilization of fossil fuels has led to their swift exhaustion, causing an escalating energy dilemma and significant environmental apprehensions. This situation has spurred advancement of sustainable energy conversion systems. Electrochemical water splitting is viewed as a capable method for generating hydrogen and oxygen intended for diverse electrochemical energy apparatus. A proficient, multifunctional electro-catalyst capable of facilitating both OERs) and HERs is of paramount importance. In this work, we report Cu-MOF electro-catalyst synthesized via the solvothermal route engaging OER activity using nickel foam (NF) in a 1 M KOH solution. Several analytical techniques were used to investigate the electro-catalysts BET, PXRD, FTIR and oxidation states. The water-splitting evaluation of the LOCOM-1 demonstrated exceptional oxygen activity concerning OER (oxygen evolution reaction), showcasing to extent a current density of 10 mAcm-2 a reduced of 286 mV over potential. Additionally, it exhibited a diminished onset potential of 1.37V attributable towards a decreased Tafel slope of 44.50 mVdec-1, and a proton couple electron transfer (PCET) channel that is stable over an extended period of time (1000 cycles of cyclic voltammetry and 40 hours of chronoamperometry). Therefore, this current endeavour might offer a new prospect or pathway for exploring the OER (Oxygen Evolution Reaction). © 2024, The Authors. All rights reserved.

关键词： Potassium hydroxide

来源：评论

学校读者我要写书评

暂无评论

Prediction of protected band edge states and dielectric tunable quasiparticle and excitonic properties of monolayer MoSi_(2)N_(4)

引用

npj Computational materials 2022年第1期8卷 1216-1222页

作者： Yabei Wu Zhao Tang Weiyi Xia Weiwei Gao Fanhao Jia Yubo Zhang Wenguang Zhu Wenqing Zhang Peihong Zhang Department of Materials Science and Engineering and Shenzhen Institute for Quantum Science&engineering Southern University of Science and TechnologyShenzhenGuangdong518055China Guangdong Provincial Key Lab for Computational Science and Materials Design and Shenzhen Municipal Key Lab for Advanced Quantum Materials and DevicesSouthern University of Science and TechnologyShenzhenGuangdong518055China ICQD Hefei National Laboratory for Physical Science at the MicroscaleKey Laboratory of Strongly-Coupled Quantum Matter PhysicsChinese Academy of SciencesDepartment of Physicsand Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefeiAnhui230026China Department of Physics University at BuffaloState University of New YorkBuffaloNY14260USA Department of Physics Dalian University of TechnologyDalianLiaoning116024China International Centre for Quantum and Molecular Structures Materials Genome InstituteDepartment of PhysicsShanghai University99 Shangda RoadShanghai200444China

The electronic structure of two-dimensional(2D)materials are inherently prone to environmental perturbations,which may pose significant challenges to their applications in electronic or optoelectronic devices.A 2D material couples with its environment through two mechanisms:local chemical coupling and nonlocal dielectric screening *** local chemical coupling is often difficult to predict or control *** dielectric screening,on the other hand,can be tuned by choosing the substrates or layer thickness in a controllable ***,a compelling 2D electronic material should offer band edge states that are robust against local chemical coupling *** it is demonstrated that the recently synthesized MoSi_(2)N_(4)is an ideal 2D semiconductor with robust band edge states protected from capricious environmental chemical coupling *** many-body perturbation theory calculations are carried out to illustrate how the band edge states of MoSi_(2)N_(4)are shielded from the direct chemical coupling effects,but its quasiparticle and excitonic properties can be modulated through the nonlocal dielectric screening *** unique property,together with the moderate band gap and the thermodynamic and mechanical stability of this material,paves the way for a range of applications of MoSi_(2)N_(4)in areas including energy,2D electronics,and optoelectronics.

关键词： dielectric protected quasi

来源：评论

学校读者我要写书评

暂无评论

The issues on the commercialization of perovskite solar cells

引用

materials Futures 2024年第2期3卷 1-35页

作者： Lixiu Zhang Yousheng Wang Xiangchuan Meng Jia Zhang Pengfei Wu Min Wang Fengren Cao Chunhao Chen Zhaokui Wang Fu Yang Xiaodong Li Yu Zou Xi Jin Yan Jiang Hengyue Li Yucheng Liu Tongle Bu Buyi Yan Yaowen Li Junfeng Fang Lixin Xiao Junliang Yang Fuzhi Huang Shengzhong Liu Jizhong Yao Liangsheng Liao Liang Li Fei Zhang Yiqiang Zhan Yiwang Chen Yaohua Mai Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190People’s Republic of China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632People’s Republic of China Institute of Polymers and Energy Chemistry(IPEC) Nanchang UniversityNanchang 330031People’s Republic of China School of Information Science and Technology Fudan UniversityShanghai 200433People’s Republic of China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072People’s Republic of China School of Physical Science and Technology Soochow UniversitySuzhou 215006People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Institute of optoelectronics Fudan UniversityShanghai 200433People’s Republic of China College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123People’s Republic of China School of Physics and Electronic Science East China Normal UniversityShanghai 200241People’s Republic of China State Key Laboratory for Artificial Microstructure and Mesoscopic Physics Department of PhysicsPeking UniversityBeijing 100871People’s Republic of China College of Biophotonics South China Normal UniversityGuangzhou 510631People’s Republic of China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Physics and Electronics Central South UniversityChangsha 410083People’s Republic of China School of Materials Science and Engineering Shaanxi Normal UniversityXi’an 710119People’s Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Microquanta semiconductor Hangzhou 311121People’s Republic of China

Perovskite solar cells have aroused a worldwide research upsurge in recent years due to their soaring photovoltaic performance,ease of solution processing,and low *** power conversion efficiency record is constantly being broken and has recently reached 26.1%in the lab,which is comparable to the established photovoltaic technologies such as crystalline silicon,copper indium gallium selenide and cadmium telluride(CdTe)solar ***,perovskite solar cells are standing at the entrance of industrialization,where huge opportunities and risks ***,towards commercialization,challenges of up-scaling,stability and lead toxicity still remain,the proper handling of which could potentially lead to the widespread adoption of perovskite solar cells as a low-cost and efficient source of renewable *** review gives a holistic analysis of the path towards commercialization for perovskite solar cells.A comprehensive overview of the current state-of-the-art level for perovskite solar cells and modules will be introduced first,with respect to the module efficiency,stability and current status of *** will then discuss the challenges that get in the way of commercialization and the corresponding strategies to address them,involving the upscaling,the stability and the lead toxicity *** into the future direction of commercialization of perovskite photovoltaics was also provided,including the flexible perovskite cells and modules and perovskite indoor ***,the future perspectives towards commercialization are put forward.

关键词： commercializations perovskite solar cells state-of-the-art level challenges and perspectives indoor photovoltaics

来源：评论

学校读者我要写书评

暂无评论

Decorating Aramid Fibers with Chemically-Bonded Amorphous Tio2 for Improving Uv Resistance in the Simulated Extreme Environment

SSRN

引用

SSRN 2022年

作者： Chen, Fengxiang Zhai, Lisha Huang, Zhiyu Luo, Yuxin Yang, Huiyu Xing, Tonghe He, Annan Yu, Zhenwei Liu, Jie Zhang, Xiaofang Xu, Weilin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China Beijing Advanced Innovation Center for Biomedical Engineering Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of Chemistry Beihang University Beijing100191 China State Key Laboratory of Bio-Fibers and Eco-Textiles Qingdao University Qingdao266071 China

Aramid fiber holds a great potential application in harsh environments like defense and aerospace due to outstanding integrated properties, but it still falls short in poor UV resistance and surface inertness. It is an intriguing but challenging task to obtain high anti-UV efficiency for aramid fiber without compromising the mechanical characteristics. Herein, a uniform and thickness-controlled amorphous TiO 2 coating layer is chemically-bonded onto aramid fiber surfaces via a modified atomic layer deposition (mALD) strategy. In contrast to bare aramid fiber with poor UV resistance and greatly suppressed mechanical performance, the modified aramid fibers with 1000 ALD cycles possesses well-preserved mechanical strength and flexibility. Moreover, they exhibit 54.08% retention of initial tenacity even exposure to UV irradiation with intensity of 4260 W/m 2 at high temperature ( > 200 °C) for 360 min (equals to continuous exposure to strong sunlight irradiation for about 7.5 years), simultaneously retain the excellent laundering durability and lustrousness, demonstrating a significant enhancement in anti-UV efficiency. Such highly anti-UV fibers fabricated by a facile mALD strategy provide a new perspective on designing multifunctional fibers and devices for future innovative applications. © 2022, The Authors. All rights reserved.

关键词： Aramid fibers

来源：评论

学校读者我要写书评

暂无评论

Ultrathin 2D Metal–Organic Framework Nanosheets In situ Interpenetrated by Functional CNTs for Hybrid Energy Storage Device

引用

Nano-Micro Letters 2020年第4期12卷 1-13页

作者： Feitian Ran Xueqing Xu Duo Pan Yuyan Liu Yongping Bai Lu Shao MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and Environment(SKLUWRE)School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002People’s Republic of China

The controllable construction of two-dimensional(2D)metal–organic framework(MOF)nanosheets with favorable electrochemical performances is greatly challenging for energy ***,we design an in situ induced growth strategy to construct the ultrathin carboxylated carbon nanotubes(C-CNTs)interpenetrated nickel MOF(Ni-MOF/C-CNTs)*** deliberate thickness and specific surface area of novel 2D hybrid nanosheets can be effectively tuned via finely controlling C-CNTs *** to the unique microstructure,the integrated 2D hybrid nanosheets are endowed with plentiful electroactive sites to promote the electrochemical performances *** prepared Ni-MOF/C-CNTs nanosheets exhibit superior specific capacity of 680 C g^−1 at 1 A g^−1 and good capacity *** assembled hybrid device demonstrated the maximum energy density of 44.4 Wh kg^−1 at a power density of 440 W kg^−*** novel strategy to construct ultrathin 2D MOF with unique properties can be extended to synthesize various MOF-based functional materials for diverse applications.

关键词： Metal–organic frameworks Carbon nanotubes Ultrathin 2D nanosheets Hybrid supercapacitor

来源：评论

学校读者我要写书评

暂无评论

Design of Photothermal Covalent Organic Frameworks by Radical Immobilization

引用

CCS Chemistry 2022年第8期4卷 2842-2853页

作者： Xiaohui Tang Zhongxin Chen Qing Xu Yan Su Hong Xu Satoshi Horike Huanhuan Zhang Yuan Li Cheng Gu State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhou 510640 CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute(SARI)Chinese Academy of Sciences(CAS)Shanghai 201210 Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084 Institute for Integrated Cell-Material Sciences Institute for Advanced StudyKyoto UniversityYoshidaSakyo-kuKyoto 606-8501 Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of TechnologyGuangzhou 510640

Covalent organic frameworks(COFs)characterized by structural diversity,face-to-face stacking and open channels exhibit unique advantages as photothermal materials but have rarely been applied in solar-driven water evaporation due to complicated framework design,tedious synthesis,and low solar-to-vapor ***,we report a materials design strategy to produce efficient and robust photothermal COF by anchoring nonemissive radicals to the pore surface by a[2+2]cycloaddition–retroelectrocyclization reaction.

关键词： covalent organic frameworks radicals photothermal conversion water evaporation

来源：评论

学校读者我要写书评

暂无评论

Solvent Volume Expansion Inhibition During Freeze Casting and its Application in Composite Solid Lithium Electrolytes

SSRN

引用

SSRN 2023年

作者： Gong, Ming Liang, Ying Li, keyang Guo, Chuangjie Zhao, Xiaohuan Liang, Jie Huang, Yilun Zhao, Ming Dong, Yanhao Ren, Yaoyu Zhuang, Daming Nan, Ce-Wen Gong, Qianming School of Materials Science and Engineering Tsinghua University Beijing100084 China Key Laboratory for Advanced Materials Processing Technology Ministry of Education Beijing100084 China State Key Laboratory of New Ceramics and Fine Processing Beijing100084 China School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing100081 China SINOPEC Beijing Research Institute of Chemical Industry Beijing100013 China

Composite solid electrolytes hold the promise to enable all-solid-state lithium-ion batteries to be practicable. One critical issue is the construction of uniform porous ceramic framework. The work proposed an innovative freeze casting-based technology to construct porous ceramic framework of Li1+xAlxGe2−x(PO4)3 (LAGP), which was further composited with polymeric electrolytes to assemble full cells. The pore structure of the ceramic framework was effectively tuned by the ratio of mixed water-ethanol solvents, which could offset the volume expansion of water during freeze casting, benefit powder compact and sintering, and thus improved the quality of the composite solid electrolytes. The unique solvent composition design strategy provided ample opportunity for microstructural modification and the suppression of short-circuiting lithium dendrites, as demonstrated by the improvement of critical current density and phase field modeling. This work offers new perspectives on creating different pore structure free of residual stress or volume expansion once freeze casting technique is adopted. © 2023, The Authors. All rights reserved.

关键词： Pore structure

来源：评论

学校读者我要写书评

暂无评论

Ni-Mof Decorated Carbon Nanotubes Encapsulated Ni Nanoparticles for Robust C-N and H-O Bonds Cleavage

SSRN

引用

SSRN 2023年

作者： Xie, Yuhua Xiong, Tiantian Li, Chen Shi, Han Zhou, Cong Luo, Fang Li, Chunsheng Sun, Yan Yang, Zehui Sustainable Energy Laboratory Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo RD Wuhan430074 China College of Materials Science and Engineering State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University Wuhan430200 China School of Chemistry and Life Sciences Suzhou University of Science and Technology Jiangsu Province Suzhou City215009 China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China Suzhou University of Science and Technology Jiangsu Province Suzhou City215009 China Zhejiang Institute China University of Geosciences Hangzhou311305 China

In this work, we report a robust bifunctional electrocatalyst composed of Ni-MOF and nitrogen doped carbon nanotubes encapsulated Ni nanoparticles (Ni-MOF@Ni-NCNT) for C-N and H-O bonds dissociation. Due to the presence of Ni-NCNT, adsorption of OH- species is enhanced and CO2 binding strength is simultaneously weakened leading to a boosted urea oxidation reaction performance reflected by decrement in potential at 100 mA cm-2 by 69 mV. The loosened binding strength with CO2 specie is highlighted by in-situ electrochemical impedance spectroscopy (EIS) test and DFT calculation. Moreover, the alkaline hydrogen evolution reaction (HER) performance of Ni-MOF@Ni-NCNT is better than Ni-MOF and Ni-NCNT evidenced by the overpotential at 50 mA cm-2 decreased by 224 mV and 900 mV ascribed to the synergistic effect, in which Ni-MOF, Ni nanoparticles and Ni-Nx-C facilitates water adsorption, dissociation and adsorption/combination of hydrogen ions, respectively. The assembled HER-UOR system requires only 1.33 V to reach 10 mA cm-2, 70 mV lower than water splitting driven by Pt/C-IrO2. © 2023, The Authors. All rights reserved.

关键词： Urea

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：