摘要：Aqueous zinc-ion batteries(AZIBs)are attracting worldwide attention due to their multiple merits such as extreme safety,low cost,feasible assembly,and environmentally friendly enabled by water-based *** present,AZIBs have experienced systematic advances in battery components including cathode,anode,and electrolyte,whereas research involving separators is *** separator is the crucial component of AZIBs through providing ion transport,forming contact with electrodes,serving as a container for electrolyte,and ensuring the efficient battery *** this great yet ignored significance,it is timely to present the latest advances in design strategies,the systematic classification and summary of *** summarize the separator optimization strategies mainly along two approaches including the modification of the frequently used glass fiber and the exploitation of new *** advantages and disadvantages of the two strategies are analyzed from the material types and the characteristics of different *** effects and mechanisms of various materials on regulating the uniform migration and deposition of Zn2+,balancing the excessively concentrated nucleation points,inhibiting the growth of dendrites,and the occurrence of side reactions were discussed using confinement,electric field regulation,ion interaction force,desolvation,***,potential directions for further improvement and development of AZIBs separators are proposed,aiming at providing helpful guidance for this booming field.

摘要：应用3D打印技术制备准固态微型超级电容器(MSCs)在可编程结构设计和高质量负载电极制造方面具有固有的优势.然而,缺乏高性能的可打印墨水和厚电极内缓慢的离子传输,对其实际电荷存储能力提出了重大挑战.本文成功开发了一种具有优异流变性能的新型NiCo_(2)S_(4)基纳米复合墨水,并结合直墨书写的3D打印技术合理设计了准固态MSCs的三维结构.得益于牢固锚定在还原氧化石墨烯(rGO)表面的NiCo_(2)S_(4)纳米颗粒和有序的三维微孔,锯齿状厚电极提供了丰富的反应位点并增强了离子传输.因此,三层锯齿状MSCs的面电容高达416.7 mF cm^(-2).在1 mA cm^(-2)的电流密度下,单层、双层和三层电极的锯齿状MSCs的面电容与相对应的网格状MSCs相比,分别增加了127.1%、349.8%和585.9%.本工作为高面电容MSCs的材料和电极结构的跨尺度设计提供了新见解,推动了MSCs在柔性便携式电子设备中的集成应用研究.

摘要：二维过渡金属硫族化合物(TMDCs)材料被认为是拓展摩尔定律的极具前景的候选材料.然而,该材料的低光致发光效率严重限制了其实际应用,其本质源于材料制备中不可避免引入的缺陷.在本文中,我们报道了一种Sr掺杂单层MoS_(2)的有效缺陷工程策略,该策略在实验上通过简便的化学气相沉积(CVD)一步法成功实现.所制备的具有亚毫米(~324μm)级的大尺寸样品的光致发光可实现高达两个数量级的增强,并伴随着载流子寿命的显著增强.这一现象主要归因于Sr掺杂后MoS_(2)体系中其三激子向激子转换.与此同时,掺杂样品的辐射质量和稳定性也显著提升.第一性原理计算进一步阐明了其调控机制,即在MoS_(2)中引入适当互补缺陷能级与其自身的缺陷能级协同,从而可调节其载流子组分,以实现光致发光的显著增强.此外,我们的缺陷工程策略也适用于其他掺杂剂,如钙掺杂剂.我们的工作报告了一种可以显著提升单层MoS_(2)的荧光性能的有效缺陷工程策略,这为设计和调控二维TMDCs的光电特性提供一种极具前途的方法.

摘要：聚合物基固态电解质得益于其易加工性,最有希望应用于下一代固态锂金属电池.目前,聚合物基态电解质的离子电导率提升策略多为加入导锂陶瓷以构建离子传输通道,其提升程度有限.电场在锂离子输运过程中存在重要影响,目前研究中有关电场对锂离子传输的影响机制尚不明确.本文将兼具高离子电导率和高介电常数的铌酸锂嵌入聚偏氟乙烯基体中,设计了一种新型复合固态电解质.铌酸锂颗粒有效调节电解质内部电场结构,增强了离子输运方向电场强度,实现了离子电导率的大幅提升(7.39×10^(-4)S cm^(-1),25℃).该电解质匹配高镍正极和锂金属负极的固态电池可稳定循环1000次以上,容量保持率为72%.该研究为设计下一代固态锂电池用高离子电导复合固态电解质提供了新的策略.

摘要：The growth of data and Internet of Things challenges traditional hardware,which encounters efficiency and power issues owing to separate functional units for sensors,memory,and *** this study,we designed an a-phase indium selenide(a-In_(2)Se_(3))transistor,which is a two-dimensional ferroelectric semiconductor as the channel material,to create artificial optic-neural and electro-neural synapses,enabling cutting-edge processing-in-sensor(PIS)and computing-in-memory(CIM)*** an optic-neural synapse for low-level sensory processing,the a-In_(2)Se_(3)transistor exhibits a high photoresponsivity(2855 A/W)and detectivity(2.91×10^(14)Jones),facilitating efficient feature *** high-level processing tasks as an electro-neural synapse,it offers a fast program/erase speed of 40 ns/50μs and ultralow energy consumption of 0.37 aJ/*** AI vision system using a-In_(2)Se_(3)transistors has been *** achieved an impressive recognition accuracy of 92.63%within 12 epochs owing to the synergistic combination of the PIS and CIM *** study demonstrates the potential of the a-In_(2)Se_(3)transistor in future vision hardware,enhancing processing,power efficiency,and AI applications.

摘要：局部电荷的强离域和强偶极矩是影响共价有机框架(COFs)基光催化剂催化析氢性能的两个关键因素.然而,基于精确的调控结构模型来系统研究这种构效关系的报告相对较少.本研究提出了一种新的策略,通过合理的设计,制备了三种三芴酮基COFs,通过在分子水平上调控单体的结构和偶极来提高局部电荷离域指数.我们重点研究这三种三芴酮基COF的局部电荷离域与光催化性能之间的构效关系.在不同三芴酮基COF中,1,3,5-三(对甲酰基苯基)苯基COF(TeTpb-COF)展现出21.6 mmol g^(-1)h^(-1)的最高析氢速率,与2,4,6-三(4-醛基苯基)-1,3,5-三嗪基COF(TeTt-COF,0.2mmol g^(-1)h^(-1))相比,光催化析氢性能提高了108倍.这种性能的增强可归因于其强大的分子内置电场提高了供体-受体嵌段单元中光生电荷的有效分离效率.这项工作证实了调整构建块可以极大增强三芴酮基COFs中的局部偶极矩,从而显著改善光催化析氢性能.构建模块的调控策略为创建高效的新型COF基光催化析氢平台提供了新机会.

摘要：materials informatics has emerged as a promisingly new paradigm for accelerating materials discovery and *** exploits the intelligent power of machine learning methods in massive materials data from experiments or simulations to seek new materials,functionality,and principles,*** specialized facilities to generate,collect,manage,learn,and mine large-scale materials data is crucial to materials *** herein developed an artificial-intelligence-aided data-driven infrastructure named Jilin Artificial-intelligence aided materials-design Integrated Package(JAMIP),which is an open-source Python framework to meet the research requirements of computational materials *** is integrated by materials production factory,high-throughput first-principles calculations engine,automatic tasks submission and monitoring progress,data extraction,management and storage system,and artificial intelligence machine learning based data mining *** have integrated specific features such as an inorganic crystal structure prototype database to facilitate high-throughput calculations and essential modules associated with machine learning studies of functional *** demonstrated how our developed code is useful in exploring materials informatics of optoelectronic semiconductors by taking halide perovskites as typical *** obeying the principles of automation,extensibility,reliability,and intelligence,the JAMIP code is a promisingly powerful tool contributing to the fast-growing field of computational materials informatics.

摘要：Photocatalytic technology holds great promise in renewable energy and environmental ***,we report the synthesis of a class of polyaniline-sensitized BiOCI core/shell nanosheets with visible-light photocatalytic activity by a one-step oxidative polymerization method and show how the hybrid nanosheet boosts the photocatalytic activity and stability for degradation of Rhodamine B (RhB).In this unique structure,the ultrathin polyaniline (PANI)as a shell with the thickness of about 1-2nm,can widen the response of the catalyst to visible light to boost photocatalysis and the BiOCI core can promote the separation of photogenerated carriers from the *** demonstrate that the optimized BiOCl/ PANI core/shell photocatalyst shows nearly three times higher photocatalytic activity for the degradation of RhB than pure BLOC1and also shows high *** work provides a new strategy for the design of a highly efficient hybrid photo- catalyst driven by visible light.

摘要：Developing materials with excellent properties has been the untiring pursuit of *** glasses(MGs)would be the ideal metallic materials if their size could be scaled up to be comparable to traditional *** address this challenge,a variety of approaches have been attempted over the past decades,including thermodynamicsbased alloy,3D printing and the recent artificial intelligenceguided optimal *** this study,a facile and flexible route was demonstrated to manufacture giant MGs(GMGs)with diameters more than 100 mm through the thermo-joining *** jointed GMG samples feature almost the same performance as the as-cast *** ability of manufacturing complex 3D components such as the Chinese Zodiacs was also *** approach might overcome the longstanding problem of glass forming ability(GFA)limitations in alloy systems and pave new concept and route to fabricate size unlimited MGs.

摘要：K-ion batteries(KIBs)hold great promise for large-scale energy ***,the absence of suitable cathode materials limits their practical ***,rationally designing advanced cathode materials for KIBs remains an open *** this work,based on density functional theory calculations,we find that the bond stability of Fe–O is higher than that of Co–O in layered transitional metal(TM)***,the K-ion migration in the Fe-based layered TM oxide has a significantly lower activation energy barrier than that in the Co-based *** on this theoretical prediction,we successfully synthesized a low-cost K_(0.45)Ni_(0.1)Fe_(0.1)Mn_(0.8)O_(2)cathode,which shows excellent structural stability and superior K-storage properties,including durable cycle life and high-rate ***,the designed K_(0.45)Ni_(0.1)Fe_(0.1)Mn_(0.8)O_(2)cathode possesses a great full-cell performance with a discharge capacity of~75 mA h g^(-1) and capacity retention of~80%after 100 *** results show that Fe has better structural stability and K-ion diffusion than high-cost Co in layered oxide cathodes,and this finding provides new insights into the design of low-cost and high-performance KIB layered *** work highlights the feasibility of a theory-guided experiment in screening promising battery materials.