检索结果-内蒙古大学图书馆

Self-templated formation of twin-like metal-organic framework nanobricks as pre-catalysts for efficient water oxidation

引用

Nano research 2022年第4期15卷 2887-2894页

作者： Fei-Xiang Ma Fucong Lyu Yingxue Diao BinBin Zhou Jianghua Wu Fengwen Kang Zebiao Li Xufen Xiao Peng Wang Jian Lu Yang Yang Li Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceShenzhen 518057China Hong Kong Branch of National Precious Metals Material Engineering Research Center City University of Hong KongHong Kong 999077China Department of Mechanical Engineering City University of Hong KongGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceHong Kong 999077China Department of Material Science and Engineering City University of Hong KongHong Kong 999077China National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesCollaborative Innovation Center of Advanced Microstructures and Center for the Microstructures of Quantum MaterialsNanjing UniversityNanjing 210093China CityU-Shenzhen Futian Research Institute No.3Binglang RoadFubao StreetFutian DistrictShenzhen 518045China

Fabrication of single-crystalline metal-organic framework(MOF)hollow nanostructures with two-dimensional(2D)morphologies is a challenging ***,twin-like MOF nanobricks,a quasi-hollow 2D architecture,with multi-metal nodes and replaceable organic ligands,are uniformly and firmly grown on conductive Ni foam through a generic one-pot *** formation process of twin-like MOF nanobricks mainly includes selective epitaxial growth of Fe-rich MOF layer and simultaneously dissolution of the pre-formed Ni-rich metal-organic frameworks(MOFs),all of which can be ascribed to a special self-templated *** fantastic structural merits of twin-like MOF nanobrick arrays,featuring highly exposed active sites,remarkable electrical conductivity,and hierarchical porosities,enable this material for efficient *** bimetallic NiFe-MOFs grown on Ni foam as an example,the resultant twin-like nanobrick arrays can be directly utilized as three-dimensional(3D)integrated electrode for high-performance water oxidation in 1 M KOH with a low overpotential,fast reaction kinetics(28.5 mV·dec^(-1)),and superb ***,the unstable NiFe-MOFs were served as an oxygen evolution reaction(OER)pre-catalyst and the single-crystalline NiFe-MOF precursor can be in-situ topochemically regulated into porous and lowcrystalline NiFeOx nanosheets during the OER *** work extends the hollowing strategy to fabricate hollow MOFs with 2D architectures and highlights their direct utilization for advanced electrocatalysis.

关键词： twin-like structures metal-organic frameworks oxygen evolution reaction self-templated pre-catalysts

来源：评论

学校读者我要写书评

暂无评论

Mitigating Fast Thermal Instability by Engineered Laser Sweep in AIN Soliton Microcomb Generation

Mitigating Fast Thermal Instability by Engineered Laser Swee...

引用

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Wang, Zihao Liu, Kewei Yao, Shunyu Guo, Yanan Yan, Jianchang Wang, Junxi Yang, Changxi Bao, Chengying Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instruments Beijing100084 China University of the Chinese Academy of Sciences Center for Materials Science and Optoelectronics Engineering Beijing100049 China Institute of Semiconductors Chinese Academy of Sciences Research and Development Center for Solid State Lighting Beijing100083 China

ISBN: (纸本)9798350312614

Transient thermal instability represents a significant challenge in generating soliton microcombs. Fast laser sweep can be an efficient method to mitigate thermal instability, but it would require ultrahigh laser sweep rate for crystalline microresonators with fast thermal relaxation. Here, we engineer the laser sweep waveform to generate AIN-on-sapphire soliton microcombs with an intermediate sweep speed ( © 2023 IEEE.

关键词： fast laser sweep soliton microcombs thermal instability

来源：评论

学校读者我要写书评

暂无评论

Dual-site parallel binding ligands for enhanced perovskite solar cell efficiency

引用

Journal of Energy Chemistry 2025年第06期 112-120页

作者： Zhiqian Yang Yingke Ren Li'e Mo Mengting Han Aiqing Sun Zhaoqian Li Hong Zhang Yong Ding Yang Huang Linhua Hu Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences University of Science and Technology of China College of Science Hebei University of Science and Technology Hebei Computational Optical Imaging and Photoelectric Detection Technology Innovation Center Hebei International Joint Research Center for Computational Optical Imaging and Intelligent Sensing School of Mathematics and Physics Science and Engineering Hebei University of Engineering State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Anhui Institute of Innovation for Industrial Technology

Perovskite solar cells（PSCs） are promising in the field of photovoltaics but are hindered by surface defects and ***,the energetic losses occurring at the interfaces between the perovskite and the charge transport layers often lead to reduced power conversion efficiency（PCE）.Surface treatment is an effective strategy but the passivating ligands usually bind with a single active *** resulted dense packing of resistive passivators perpendicular to the surface is detrimental to charge ***,we present a passivator that can bind to two neighboring lead（Ⅱ） ion(Pb2+) defect sites simultaneously with an aligned parallel mode to the perovskite surface,effectively suppressing the surface trap density and preventing the *** target device fulfills a PCE of 25.1% and maintains over 85% of the initial efficiency after 800 h of exposure to a relative humidity（RH） of 65% ± 5%.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Atomically isolated Pd sites within Pd-S nanocrystals enable trifunctional catalysis for direct,electrocatalytic and photocatalytic syntheses of H_(2)O_(2)

引用

Nano research 2022年第3期15卷 1861-1867页

作者： Tang Yang Chengyong Yang Jiabo Le Zhiyong Yu Lingzheng Bu Leigang Li Shuxing Bai Qi Shao Zhiwei Hu Chih-Wen Pao Jun Cheng Yonggang Feng Xiaoqing Huang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Max-Planck-Institute for Chemical Physics of Solids Nöthnitzer Street 40Dresden 01187Germany “National Synchrotron Radiation Research Center” Hsinchu 30076TaiwanChina

Although high-efficiency production of hydrogen peroxide(H_(2)O_(2))can be realized separately by means of direct,electrochemical,and photocatalytic synthesis,developing versatile catalysts is particularly challenging yet ***,for the first time we reported that palladium-sulphur nanocrystals(Pd-S NCs)can be adopted as robust and universal catalysts,which can realize the efficient O_(2) conversion by three *** a result,Pd-S NCs exhibit an excellent selectivity(89.5%)to H_(2)O_(2)with high productivity(133.6 mol·kgcat^(−1)·h^(−1))in the direct synthesis,along with the significantly enhanced H_(2)O_(2)production activity and stability via electrocatalytic and photocatalytic *** is demonstrated that the isolated Pd sites can enhance the adsorption of O_(2) and inhibit its O–O bond dissociation,improving H_(2)O_(2)selectivity and reducing H_(2)O_(2)*** study confirms that the difference in surface atom composition and arrangement is the key factor for different ORR mechanisms on Pd NCs and Pd-S NCs.

关键词： Pd-S universality direct synthesis of H_(2)O_(2) oxygen reduction photocatalysis

来源：评论

学校读者我要写书评

暂无评论

Multifunctional solar-blind ultraviolet photodetectors based on p-PCDTBT/n-Ga_(2)O_(3)heterojunction with high photoresponse

引用

InfoMat 2024年第2期6卷 118-130页

作者： Yifei Wang Zhenhua Lin Jingli Ma Yongyi Wu Haidong Yuan Dongsheng Cui Mengyang Kang XingGuo Jie Su Jinshui Miao Zhifeng Shi Tao Li Jincheng Zhang Yue Hao Jingjing Chang State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of MicroelectronicsXidian UniversityXi'anthe People's Republic of China School of Physics and Microelectronics Key Laboratory of Material PhysicsMinistry of EducationZhengzhou UniversityZhengzhouthe People's Republic of China Center for Spintronics and Quantum Systems State Key Laboratory for Mechanical Behavior of MaterialsDepartment of Materials Science and EngineeringXi'an Jiaotong UniversityXi'anthe People's Republic of China Advanced Interdisciplinary Research Center for Flexible Electronics Xidian UniversityXi'anthe People's Republic of China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghaithe People's Republic of China

Solar-blind ultraviolet(UV)photodetectors based on p-organic/n-Ga_(2)O_(3) hybrid heterojunctions have attracted extensive attention ***,the multifunctional solar-blind photodetector based on p-type poly[N-90-heptadecanyl-2,7-carbazole-alt-5,5-(40,70-di-2-thienyl-20,10,30-benzothiadiazole)](PCDTBT)/n-type amorphous Ga_(2)O_(3)(a-Ga_(2)O_(3))is fabricated and investigated,which can work in the phototransistor mode coupling with self-powered *** the introduction of PCDTBT,the dark current of such the a-Ga_(2)O_(3)-based photodetector is decreased to 0.48 ***,the photoresponse parameters of the a-Ga_(2)O_(3)-based photodetector in the phototransistor mode to solar-blind UV light are further increased,that is,responsivity(R),photo-detectivity(D*),and external quantum efficiency(EQE)enhanced to 187 A W^(-1),1.3×10^(16) Jones and 9.1×10^(4)% under the weak light intensity of 11μW cm^(-2),*** to the formation of the built-in field in the p-PCDTBT/n-Ga_(2)O_(3) type-Ⅱ heterojunction,the PCDTBT/Ga_(2)O_(3) multifunctional photodetector shows self-powered *** responsivity of p-PCDTBT/n-Ga_(2)O_(3) multifunctional photodetector is 57.5 mA W^(-1) at zero *** multifunctional p-n hybrid heterojunction-based photodetectors set the stage for realizing high-performance amorphous Ga_(2)O_(3) heterojunction-based photodetectors.

关键词： amorphous Ga_(2)O_(3) heterojunction multifunctional PCDTBT solar-blind photodetectors

来源：评论

学校读者我要写书评

暂无评论

Phase-modulated mechanical and thermoelectric properties of Ag_(2)S_(1-x)Te_(x)ductile semiconductors

引用

Journal of Materiomics 2022年第3期8卷 656-661页

作者： Liming Peng Shiqi Yang Tian-Ran Wei Pengfei Qiu Jiong Yang Zhen Zhang Xun Shi Lidong Chen State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing100049China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China School of Chemistry and Materials Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou310024China Materials Genome Institute Shanghai UniversityShanghai200444China Division of Solid-State Electronics Department of Electrical EngineeringUppsala University75237UppsalaSweden

By virtue of the excellent plasticity and tunable transport properties,Ag_(2)S-based materials demonstrate an intriguing prospect for flexible or hetero-shaped thermoelectric *** them,Ag_(2)S_(1-x)Te_(x)exhibits rich and interesting variations in crystal structure,mechanical and thermoelectric transport ***,Te alloying obviously introduces extremely large order-disorder distributions of cations and anions,leading to quite complicated crystal structures and thermoelectric *** composition-structure-performance correlation of Ag_(2)S_(1-x)Te_(x)still remains to be *** this work,we designed and prepared a series of Ag_(2)S_(1-x)Te_(x)(x=0-0.3)materials with low Te *** discovered that the monoclinic-to-cubic phase transition occurs around x=0.16 at room *** alloying plays a similar role as heating in facilitating this monoclinic-to-cubic phase transition,which is analyzed based on the thermodynamic *** with the monoclinic counterparts,the cubic-structured phases are more ductile and softer in mechanical *** addition,the cubic phases show a degenerately semiconducting behavior with higher thermoelectric performance.A maximum zT=0.8 at 600 K and bending strain larger than 20% at room temperature were obtained in Ag_(2)S_(0.7)Te_(0.3).This work provides a useful guidance for designing Ag_(2)S-based alloys with enhanced plasticity and high thermoelectric performance.

关键词： Thermoelectric materials Ag_(2)S-Ag_(2)Te ductile semiconductors Phase transition Mechanical properties Transport properties

来源：评论

学校读者我要写书评

暂无评论

Influence of rare-earth substitution on the magnetic structure and band structure of the kagome material DyMn6Ge6

引用

Physical Review B 2024年第19期110卷 195202页

作者： Jingwen Guo Jianyang Ding Dinghui Wang Bo Chen Yu Du Fuwei Zhou Heng Zhang Hangkai Xie Tianqi Wang Wuyi Qi Jiajun Li Yiying Zhang Fucong Fei Zhengtai Liu Dawei Shen Fengqi Song National Laboratory of Solid State Microstructures School of Physics School of Materials Science and Intelligent Engineering Collaborative Innovation Center of Advanced Microstructures State Key Laboratory of Functional Materials for Informatics School of Materials Science and Physics Nanjing 211806 China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201210 China National Synchrotron Radiation Laboratory

Kagome materials are of significant interest in condensed-matter physics due to their unique band structures and emergent topological phases when combined with spin-orbit coupling and magnetism. In this work, we investigate the impact of rare-earth elemental substitution on the magnetic and electronic properties of the manganese-based kagome material DyMn6Ge6, achieving tunable magnetic states ranging from ferrimagnetism to antiferromagnetism. High-resolution angle-resolved photoemission spectroscopy further reveals that the robust kagome lattice structure remains intact despite the elemental substitution. Our observations reveal stable Dirac points, which persist across different compositions, highlighting the material's potential for exploring exotic magnetic topological phases and quantum transport phenomena. These findings offer valuable insights into the independent tuning of magnetism and electronic structure in kagome materials, thereby paving the way for advanced studies and applications in the realm of quantum materials.

关键词： Dirac fermions Kagome lattice Kagome metal Topological materials Angle-resolved photoemission spectroscopy

来源：评论

学校读者我要写书评

暂无评论

In situ formation of lithiophilic Li_(22)Sn_(5) alloy and high Li-ion conductive Li_(2)S/Li_(2)Se via metal chalcogenide SnSSe for dendrite-free Li metal anodes

引用

Journal of Energy Chemistry 2022年第10期31卷 339-347,I0008页

作者： Yaya Wang Yang Guo Jiang Zhong Meng Wang Lei Wang Shengyang Li Song Chen Hongli Deng Yong Liu Yidi Wu Jian Zhu Bingan Lu State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan Key Laboratory of Two-Dimensional MaterialsEngineering Research Center of Advanced CatalysisMinistry of EducationHunan UniversityChangsha 410082HunanChina School of Energy Science and Engineering Central South UniversityChangsha 410082HunanChina School of Physics and Electronics Hunan UniversityChangsha 410082HunanChina

Lithium metal has gained extensive attention as the most ideal candidate for next-generation battery anode owing to the ultrahigh specific capacity and the lowest electrochemical ***,uncontrollable dendrite growth and huge volume variation extremely restrict the future deployment of lithium metal ***,we report metal chalcogenide SnSSe with unique nanoplate stacking structure as a robust substrate for stable Li metal *** the initial Li plating process,lithiophilic Li_(22)Sn_(5) alloy and Li_(2)S/Li_(2)Se sites are obtained via in-situ electrochemical reaction of Li metal and *** functional theory(DFT)calculation demonstrates that the formed Li_(2)S/Li_(2)Se achieves low Li diffusion energy barrier,ensuring rapid Li~+***_(22)Sn_(5) alloy provides strong nucleation sites,promoting uniform Li ***,in-situ optical microscopy analysis suggests that the synthesized effect fundamentally inhibits lithium dendrite ***,SnSSe modified Cu foil delivered an ultralow nucleation overpotential,superior cycling stability with 450 cycles(Coulombic efficiency,>98%),and excellent plating/stripping behavior over 2200 h at 0.5 mA cm^(-2).Moreover,the brilliant reversible cycles and rate capability were also realized in Li@SnSSe//LiFePO_(4)(LFP)full cell,shedding light on the feasibility of SnSSe for stable and dendrite-free lithium metal anode.

关键词： Lithiophilic Li_(22)Sn_(5)alloy High Li-ion conductive Li_(2)S/Li_(2)Se Low nucleation barrier High Coulombic efficiency Dendrite-free Li

来源：评论

学校读者我要写书评

暂无评论

Through-polymer,via technology-enabled,flexible,lightweight,and integrated devices for implantable neural probes

引用

Microsystems & Nanoengineering 2024年第2期10卷 279-291页

作者： Cunkai Zhou Ye Tian Gen Li Yifei Ye Lusha Gao Jiazhi Li Ziwei Liu Haoyang Su Yunxiao Lu Meng Li Zhitao Zhou Xiaoling Wei Lunming Qin Tiger H.Tao Liuyang Sun College of Electronics and Information Engineering Shanghai University of Electric PowerShanghaiChina 2020 X-Lab Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaiChina School of Graduate Study University of Chinese Academy of SciencesBeijingChina State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaiChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina School of Physical Science and Technology ShanghaiTech UniversityShanghaiChina Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghaiChina Neuroxess Co. Ltd.(Jiangxi)NanchangJiangxiChina Guangdong Institute of Intelligence Science and Technology HengqinZhuhaiGuangdongChina Tianqiao and Chrissy Chen Institute for Translational Research ShanghaiChina

In implantable electrophysiological recording systems,the headstage typically comprises neural probes that interface with brain tissue and integrated circuit chips for signal *** advancements in MEMS and CMOS technology have significantly improved these components,their interconnection still relies on conventional printed circuit boards and sophisticated *** conventional approach adds considerable weight and volume to the package,especially for high channel count *** address this issue,we developed a through-polymer via(TPV)method inspired by the through-silicon via(TSV)technique in advanced three-dimensional *** innovation enables the vertical integration of flexible probes,amplifier chips,and PCBs,realizing a flexible,lightweight,and integrated device(FLID).The total weight of the FLIDis only 25%that of its conventional counterparts relying on adapters,which significantly increased the activity levels of animals wearing the FLIDs to nearly match the levels of control animals without ***,by incorporating a platinum-iridium alloy as the top layer material for electrical contact,the FLID realizes exceptional electrical performance,enabling in vivo measurements of both local field potentials and individual neuron action *** findings showcase the potential of FLIDs in scaling up implantable neural recording systems and mark a significant advancement in the field of neurotechnology.

关键词： alloy neural recording

来源：评论

学校读者我要写书评

暂无评论

Revealing processing stability landscape of organic solar cells with automated research platforms and machine learning

引用

InfoMat 2024年第7期6卷 51-61页

作者： Xiaoyan Du Larry Lüer Thomas Heumueller Andrej Classen Chao Liu Christian Berger Jerrit Wagner Vincent M.Le Corre Jiamin Cao Zuo Xiao Liming Ding Karen Forberich Ning Li Jens Hauch Christoph J.Brabec Helmholtz Institute Erlangen‐Nürnberg for Renewable Energy(HI ERN) Forschungszentrum Jülich GmbHErlangenGermany Institute of Materials for Electronics and Energy Technology(i‐MEET) Friedrich‐Alexander‐Universität Erlangen‐Nürnberg(FAU)ErlangenGermany School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinanthe People’s Republic of China Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education School of Chemistry and Chemical EngineeringHunan University of Science and TechnologyXiangtanthe People’s Republic of China Center for Excellence in Nanoscience Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijingthe People’s Republic of China Institute of Polymer Optoelectronic Materials&Devices Guangdong Basic Research Center of Excellence for Energy&Information Polymer MaterialsState Key Laboratory of Luminescent Materials&DevicesSouth China University of Technology

We use an automated research platform combined with machine learning to assess and understand the resilience against air and light during production of organic photovoltaic(OPV)devices from over 40 donor and acceptor *** standardized protocol and high reproducibility of the platform results in a dataset of high variety and veracity to deploy machine learning models to encounter links between stability and chemical,energetic,and mor-phological *** find that the strongest predictor for air/light resilience during production is the effective gap Eg,eff which points to singlet oxygen rather than the superoxide anion being the dominant agent in degradation under processing conditions.A similarly good prediction of air/light resilience can also be achieved by considering only features from chemical structure,that is,information which is available prior to any experimentation.

关键词： air stability automated screening donor/acceptor combinations machine learning organic solar cells

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：