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SSRN 2024年

作者： Xiang, Zhen Wang, Haiyuan Wang, Junwei Wu, Tao Yuan, Bin Li, Xiang Lu, Wei Shanghai Key Lab. of D&A for Metal-Functional Materials Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education School of Materials Science & Engineering Tongji University Shanghai201804 China School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai200093 China Functional Materials Research Laboratory China

The heterointerface engineering, as a potent approach for modulating the properties of electromagnetic functional materials, can efficiently improve electromagnetic wave absorption (EWA) performance. However, the correlation between heterointerfaces and EMA properties remains unclear. Here, a facile heterointerfaces engineering was proposed to synthesize petal-like lamellar Ni/MnO@C porous nanocomposites, which were derived from the pyrolysis of bimetallic Ni-Mn metal-organic frameworks. This heterointerfaces engineering employed precise Ni/Mn ratio adjustment and thermal regulation to fabricate nanocomposites with desired multiphase and nano-micro heterointerfaces. The heterointerfaces framework integrated with ternary Ni/MnO/carbon components has demonstrated exceptional ferromagnetic and dielectric synergistic characteristics, which contributing to interfacial polarization, electron transport, and magnetic coupling. The dielectric polarization was primarily ascribed to the abundance of heterointerfaces, with multi-phase hybridization playing a predominant role in the interfacial polarization. As expected, excellent EWA performances were characterized by a thin thickness of 1.8 mm, a high-efficiency reflection loss of -60.1 dB, and a broad absorption bandwidth of 5.0 GHz. In addition, the porous heterointerface architecture endowed nanocomposites with favorable flame-retardancy and infrared shielding versatility. Therefore, this study demonstrated the distinctive advantages of the heterointerface engineering in customizing the design of MOFs derivatives, providing a fundamental guide for the development of high-performance functional EMA materials. © 2024, The Authors. All rights reserved.

关键词： Nanocomposites

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Porous Pyrene Organic Cage with Unusual Absorption Bathochromic-Shift Enables Visible Light Photocatalysis

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CCS Chemistry 2022年第8期4卷 2588-2596页

作者： Nana Sun Dongdong Qi Yucheng Jin Hailong Wang Chiming Wang Chen Qu Jiemin Liu Yinghua Jin Wei Zhang Jianzhuang Jiang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083 Department of Chemistry University of ColoradoBoulderCO 80309

We have constructed a novel porous pyrene-based organic cage,PyTC1,through the condensation reaction of cyclohexanediamine with 5,5′-(pyrene-1,6-diyl)***-crystal X-ray diffraction analysis reveals the effective intercage C–H...πinteraction between cyclohexanediimine and pyrene *** a soft intercage C–H...πinteraction,rather than a classic J-aggregate with slippedπ–π-stacking configuration,induced an unusual bathochromic shift of pyrene-based chromophore absorption from an ultraviolet region of PyTC1 in solution to the visible light region of PyTC1 in solid-state.

关键词： absorption bathochromic-shift J-aggregate porous organic cage pyrene derivatives visible light catalysis

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Boosting flexible electronics with integration of two-dimensional materials

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InfoMat 2024年第7期6卷 1-50页

作者： Chongyang Hou Shuye Zhang Rui Liu Thomas Gemming Alicja Bachmatiuk Hongbin Zhao Hao Jia Shirong Huang Weijia Zhou Jian-Bin Xu Jinbo Pang Mark HRümmeli Jinshun Bi Hong Liu Gianaurelio Cuniberti Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinanthe People’s Republic of China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbinthe People’s Republic of China State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaithe People’s Republic of China Institute for Materials Chemistry Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)DresdenGermany Lukasiewicz Research Network PORT Polish Center for Technology DevelopmentWroclawPoland State Key Laboratory of Advanced Materials for Smart Sensing GRINM Group Co.LtdBeijingthe People’s Republic of China Institute for Materials Science and Max Bergmann Center of Biomaterials TUD Dresden University of TechnologyDresdenGermany Department of Electronic Engineering The Chinese University of Hong KongHong Kong SARthe People’s Republic of China Institute of Environmental Technology VSB-Technical University of OstravaOstravaCzech Republic College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhouthe People’s Republic of China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhouthe People’s Republic of China Centre of Polymer and Carbon Materials Polish Academy of SciencesZabrzePoland School of Integrated Circuits University of Chinese Academy of SciencesBeijingthe People’s Republic of China Institute of Microelectronics of Tianjin Binhai New Area Tianjinthe People’s Republic of China Institute of Microelectronics Chinese Academy of SciencesBeijingthe People’s Republic of China State Key Laboratory of Crystal Materials Center of Bio and Micro/Nano Functional MaterialsShandong UniversityJinanthe People’s Republic of China

Flexible electronics has emerged as a continuously growing field of ***-dimensional(2D)materials often act as conductors and electrodes in elec-tronic devices,holding significant promise in the design of high-performance,flexible *** studies have focused on harnessing the potential of these materials for the development of such ***,to date,the incorporation of 2D materials in flexible electronics has rarely been summa-rized or ***,there is an urgent need to develop compre-hensive reviews for rapid updates on this evolving *** review covers progress in complex material architectures based on 2D materials,including interfaces,heterostructures,and 2D/polymer ***-ally,it explores flexible and wearable energy storage and conversion,display and touch technologies,and biomedical applications,together with integrated design *** the pursuit of high-performance and high-sensitivity instruments remains a primary objective,the integrated design of flexible electronics with 2D materials also warrants *** combin-ing multiple functionalities into a singular device,augmented by machine learning and algorithms,we can potentially surpass the performance of existing wearable ***,we briefly discuss the future trajectory of this burgeoning *** review discusses the recent advancements in flex-ible sensors made from 2D materials and their applications in integrated archi-tecture and device design.

关键词： 2D materials biomedical healthcare energy storage and conversion flexible electronics heterostructures sensors

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一种低密度耐高温高比强度多层次结构双相高熵合金

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science China Materials 2023年第2期66卷 780-792页

作者：李亚耸廖卫兵陈怀灿 Jamieson Brechtl 宋温丽殷雯何占兵 Peter K.Liaw 张勇 Beijing Advanced Innovation Center of Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Spallation Neutron Source Science Center Institute of High Energy PhysicsChinese Academy of SciencesDongguan 523803China Energy and Transportation Science Division Oak RidgeTN37831USA Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN37996USA Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science University of Science and Technology BeijingBeijing 100083China Shunde Graduate School of University of Science and Technology Beijing Foshan 528399China

本文研究了一种新型低密度(~6.24 g cm^(-3))双相AlTiVCoNi高熵合金,其组织结构由有序L21高熵金属间化合物、无序体心立方结构和纳米L21相多层次结构构成.该合金在1200℃+24 h热处理下未发生相结构转变,在此条件下具有优异的高温相结构... 详细信息

本文研究了一种新型低密度(~6.24 g cm^(-3))双相AlTiVCoNi高熵合金,其组织结构由有序L21高熵金属间化合物、无序体心立方结构和纳米L21相多层次结构构成.该合金在1200℃+24 h热处理下未发生相结构转变,在此条件下具有优异的高温相结构稳定性,其铸态和热处理态的压缩屈服强度相当,达到~1.6 GPa.另外,该合金在室温和600℃条件下表现出了优异的强塑性匹配和优异的比屈服强度,分别达到了约261和210 MPa g^(-1)cm^(3).该合金的超高强度主要源于有序L21相与体心立方相的半共格界面导致的一种强相结构稳定性和多层次结构的复合强化机制.该合金在800和1000℃压缩过程中出现了动态再结晶软化,使得其高温强度有所降低.这种“具有半共格界面L21+体心立方+纳米L21颗粒”的多层次结构设计为开发新型低密度耐高温高熵合金提供了一种新设计思路.

关键词：金属间化合物高熵合金体心立方双相多层次结构高比强度超高强度高温强度

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Preparation,microstructure and degradation behavior of Mg−2Zn−0.4Sc−0.2Zr alloy wire

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Transactions of Nonferrous Metals Society of China 2024年第11期34卷 3585-3598页

作者： Yu-qing HE Ri-chu WANG Xiao-hui DUAN Xiang PENG Yu-si CHEN Yan FENG School of Materials Science and Engineering Central South UniversityChangsha 410083China Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South UniversityChangsha 410083China National Key Laboratory of Science and Technology on High-strength Structural Materials Central South UniversityChangsha 410083China Department of Hepatobiliary Surgery Human Provincial People’s Hospital/The First-affiliated Hospital of Hunan Normal UniversityChangsha 410005China

A biodegradable Mg−2Zn−0.4Sc−0.2Zr(ZK20−0.4Sc)alloy wire with a diameter of 0.5 mm was prepared by a combination of hot extrusion and *** average grain size of ZK20−0.4Sc alloy wire on the longitudinal section along the drawing direction is approximately 7.3μ*** texture results show relatively strong<1020>and weak<1010>fiber texture components parallel to the drawing *** ZK20−0.4Sc alloy wire exhibits better mechanical properties with the tensile strength,yield strength and elongate of(329±2)MPa,(287±2)MPa and(14.2±0.5)%,*** better mechanical properties are mainly attributed to the grain refinement strengthening,dislocation strengthening and precipitation *** the immersion time increasing to 14 d,the corrosion type transfers from filament corrosion and pitting corrosion to severe localized corrosion.

关键词： Mg alloy wire cold drawing microstructure mechanical properties degradation behavior

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Organic Bromide Salts Interface Modification for High-Efficiency Perovskite Solar Cells with Printed Carbon Electrode

SSRN

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SSRN 2023年

作者： Tian, Yingxin Yue, Wang Tian, Linyong Cai, Haoyu Zhu, Xuehao Zhao, Juan Xiao, Junyan Cheng, Yi-Bing Zhong, Jie State Key Laboratory of Advanced Technology of Materials Composite Technology Wuhan University of Technology Wuhan430070 China School of Automobile Engineering Wuhan University of Technology Wuhan430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Guangdong Province Foshan528216 China

Perovskite solar cells (PSCs) using carbon as the counter electrode fabricated through a low temperature full solution-process method, could significantly simplify the preparation process and reduce production cost. Herein, we a present a high-performance PSCs with blade-coating printed carbon electrode and dopant-free poly(3-hexylthiophene) (P3HT) hole transport layer (HTL). Different organic bromide salts were employed to modify the perovskite/P3HT interface. As a result, the MABr significantly enhanced the device Voc and FF by reducing interface defects and facilitating charge transport. A champion PCE of 19.22% (Voc of 1.118 V, FF of 0.765, and JSC of 22.47 mA/cm2) is achieved with MABr modification. The unencapsulated devices maintain 96% of the initial efficiency after storage for 3600 h and 88% after thermal treatment at 70 °C for 1200 h. Additionally, perovskite solar modules are also prepared based on printing and interface passivation route with the PCE reaches 13.20%. These results represent an important progress in the enhancement of device PCE and up-scaling of PSCs with cost-effective, stable, printable carbon electrode. © 2023, The Authors. All rights reserved.

关键词： Perovskite

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Tripod-Linked Molecular Armor for Low-Overpotential Al–Air Batteries

ACS Electrochemistry

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ACS Electrochemistry 2025年第6期1卷 826-831页

作者： Jianling Liu Yihai Xing Biao Ma Xiangfeng Wei Shenjia Li Dongdong Li Fancheng Meng Weiqiao Deng Jiehua Liu Future Energy Laboratory School of Materials Science and Engineering Hefei University of Technology Hefei 230009 China Future Energy Laboratory School of Materials Science and Engineering Hefei University of Technology Hefei 230009 China；Key Laboratory of Advanced Functional Materials and Devices of Anhui Province Engineering Research Center of High-Performance Copper Alloy Materials and Processing Ministry of Education Hefei 230009 China Institute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 China

The self-corrosion of aluminum poses a critical challenge to the development of aluminum–air batteries. We herein propose a novel approach to suppress aluminum self-corrosion by utilizing ultrashort tripod-linked cyanuric acid as molecular armor. Cyanuric acid featuring a planar triacid group adsorbs onto the aluminum surface in an armor-like configuration, forming a protective layer that effectively mitigates the self-corrosion of the aluminum anode. This closed face-to-face cyanuric acid/Al structure, with its minimized interfacial distance, could reduce the overpotential by maintaining ion pathways, reducing water reacting with Al, facilitating hydrogen bubble detachment, and minimizing bubble retention. Electrochemical results demonstrated that the aluminum anode achieved a high utilization efficiency of 89.9%, delivering a capacity of 2680 mAh g–1at 50 mA cm–2. These findings underscore the potential of cyanuric acid as an effective inhibitor additive, offering a promising pathway to enhance the performance and durability of aluminum–air batteries.

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New Insight of Lino3 Modified Cyclic Ether-Based Quasi-Solid Electrolyte for High-Energy Lithium Metal Batteries

SSRN

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SSRN 2023年

作者： Wang, Qiujun Ma, Yanqiang Wang, Yaqing He, Xin Sun, Hui-Lan Li, Zhaojin Zhang, Di Sun, Qujiang Fan, Li-Zhen Wang, Bo Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and Engineering Hebei University of Science and Technology Shijiazhuang050000 China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and Technology University of Science and Technology Beijing Beijing100083 China

1,3-dioxolane (DOL), a common cyclic ether, can undergo in-situ ring-opening polymerization induced by Lewis’s acid type salts to form gel polymer electrolyte. However, the ring-opening polymerization of DOL can be prevented by LiNO3 additive due to the strong anion-dipole interaction between NO3- and DOL. Herein, a novel strategy of using scandium triflate, Sc(OTf)3, to engineer DOL-based electrolyte with the LiNO3 additive is introduced, in which in-situ ring-opening polymerization of DOL is achieved to form the LiNO3-modified poly-DOL-based electrolyte. The Li+ migration mechanism in the gel polymer electrolyte is revealed by constructed molecular interfacial models. In addition, a dense, Li3N-rich solid electrolyte interface is formed on the electrode surface in the presence of LiNO3, which helps to protect them from side reactions. The great features of the electrolyte are confirmed by the lithium||LiFePO4 full battery, in which a stable cycling over 450 cycles with the capacity retention of 80.3% at 50℃ is achieved. This work opens a new avenue to design high-performance gel polymer electrolytes for more metal batteries, but also offers valuable insights into understanding the ion migration mechanism. © 2023, The Authors. All rights reserved.

关键词： Lithium compounds

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Interface Engineering to Optimize Polarization and Optical Absorption of Bfmo/Bco Ferroelectric composite Films for Multifunctional Electronic Devices

SSRN

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SSRN 2024年

作者： Yang, Song Wang, Jian-Wei Yang, Xun-Yong Yi, Ying-Fei Li, Zuo Xiong, Zu-Hong Cheng, Li-Hong Wang, Xu School of Science Guizhou University of Engineering Science Bijie551700 China Guizhou Province Key Laboratory of Electronic Functional Composite Materials Guizhou University Guiyang550025 China Chongqing Key Laboratory of Micro&Nano Structure Optoelectronics School of Physical Science and Technology Southwest University Chongqing400715 China

BiFeO3-based ferroelectric thin films have attracted much attention for potential applications owing to their advantages of room-temperature multiferroic properties, controllable preparation process, and high remanent polarization. In this work, high-quality BiFe0.92Mn0.08O3/BiCrO3 composite films were obtained by a sol-gel process and a comprehensive investigation of the film growth, domain structure, multiferroic, and optical properties was provided. These novel BiFe0.92Mn0.08O3/BiCrO3 films exhibit excellent multiferroic characteristics, which can be used as an absorber layer in ferroelectric photovoltaic solar cells. Moreover, the BiCrO3-based interlayers can reduce leakage current density of BiFe0.92Mn0.08O3 films, resulting in more efficient ferroelectric properties. The superexchange interaction between Fe and Cr is achieved at the BiFe0.92Mn0.08O3/BiCrO3 interface by the magnetic coupling between Fe3+ and Cr3+ ions through paramagnetic oxygen atoms, which enhances the ferromagnetic properties of the films. Amazingly, these polarized materials can be tuned to cover more portion of the solar spectrum as a noteworthy spectral red-shift towards the visible region was discovered. This phenomenon was correlated to an occurrence of ferromagnetism, revealing the significant impact of physical materials non central symmetry structure on their chemical behaviors. These findings demonstrate that the BiFe0.92Mn0.08O3/BiCrO3 films with a narrow direct band gap possess promising applications in photoelectrochemical and multifunctional devices. © 2024, The Authors. All rights reserved.

关键词： Bismuth compounds

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内源性双miRNA触发响应的DNA纳米结构动态自组装用于原位递送siRNA

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science China Materials 2023年第7期66卷 2938-2946页

作者：钟武坤黄蕾林玉红邢超卢春华 MOE Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food SafetyState Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou 350116China Institute of Nanobiomaterials and Immunology School of Life ScienceTaizhou UniversityTaizhou 318000China Fujian Key Laboratory of Functional Marine Sensing Materials Center for Advanced Marine Materials and Smart SensorsMinjiang UniversityFuzhou 350108China

通过多重miRNA触发的原位siRNA递送治疗策略可以有效提高对癌细胞的精确治疗.基于DNA纳米结构的可编程性、特异性分子识别、易于功能化修饰和良好生物相容性的特点,我们设计了一个3D DNA纳米治疗平台,用于实现双miRNA触发响应的siRNA原... 详细信息

通过多重miRNA触发的原位siRNA递送治疗策略可以有效提高对癌细胞的精确治疗.基于DNA纳米结构的可编程性、特异性分子识别、易于功能化修饰和良好生物相容性的特点,我们设计了一个3D DNA纳米治疗平台,用于实现双miRNA触发响应的siRNA原位递送.这种3D DNA纳米结构(TY1Y2)是由DNA四面体支架、两组Y型DNA(Y1和Y2)和EpCAM核酸适体通过自组装构建而成的.TY1Y2被特异性内化至靶标癌细胞后,能够被两个内源性miRNA(miR-21和miR-122)触发,从而产生强的荧光共振能量转移信号,用于双miRNAs成像.同时,治疗性的siRNA(siSurvivin和siBcl2)也可以通过链置换反应从TY1Y2中产生并进行原位释放,实现癌细胞的协同基因治疗.这种3D DNA纳米结构将内源性生物标记物的特异性成像和治疗性基因的原位递送整合为一个多功能纳米平台,在癌症诊断和治疗方面显示出广阔的应用前景.

关键词： DNA tetrahedra dynamic assembly miRNA in-situ delivery cell imaging gene therapy

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