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(AuAg)_(44)(SPhtBu)_(26) versus(AuAg)_(44)(SPhF_(2))_(30):Tailoring the Geometric Structures and Optical Properties of Nanocluster Analogues

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Precision Chemistry 2023年第3期1卷 139-145页

作者： Jiaojiao Han Hao Li Honglei Shen Ying Xu Xuejuan Zou Xi Kang Manzhou Zhu Department of Chemistry and Centre for Atomic Engineering of Advanced Materials Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui UniversityHefeiAnhui 230601China

Monolayer-protected nanoclusters are ideal models for understanding the correlations between structures and properties of inorganic nanoparticles,especially for those molecules with identical sizes but comparable ***,... 详细信息

关键词： metal nanoclusters alloy structural analogues geometric structures optical properties

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Nucleation growth quenching for superior cluster catalysts

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Nano Research 2022年第9期15卷 7933-7939页

作者： Ruyue Wang Feng Cheng Yonggang Wang Dongyu Fan Bohan Deng Yuanzheng Long Haolin Tang Kai Huang Zhaowei Qu Ming Lei Binghui Ge Hui Wu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Information Photonics and Optical Communications School of ScienceBeijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Beijing Key Laboratory of Space-ground Interconnection and Convergence Beijing University of Posts and Telecommunications(BUPT)Beijing 100876China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China

Cluster catalysts are rapidly growing into an important sub-field in heterogeneous catalysis,owing to their distinct geometric structure,neighboring metal sites,and unique electronic *** the thermodynamics and kinetics of the formation of nanoparticles have been largely investigated,the precise synthesis of clusters in wet chemical methods still faces great *** the study,a quenching strategy of asymmetric temperature in solution for the rapid generation of vacancy-defect rich clusters is *** quenching process can be used to synthesize multitudinous metal compound clusters,including metal oxides,fluorides,oxygen-sulfur compounds,and *** oxygen evolution reaction(OER),IrO_(2)clusters with abundant oxygen vacancies were obtained and uniformly dispersed in the *** to commercial IrO_(2),the prepared IrO_(2)cluster can be directly loaded on carbon paper and used as binder-free electrodes,which exhibit higher OER activity and long-term operational stability in alkaline *** quenching strategy provides a simple and efficient method for the synthesis of clusters,which has tremendous potential for industrial-scale preparation and application,especially can be further applied to flow electrochemical generators.

关键词： rapid-chilling cluster structure transition metal compounds binder-free electrode oxygen evolution reaction

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Shining light on transition metal tungstate-based nanomaterials for electrochemical applications:Structures,progress,and perspectives

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Nano Research 2022年第8期15卷 6924-6960页

作者： Kaijia Feng Zhefei Sun Yong Liu Feng Tao Junqing Ma Han Qian Renhong Yu Kunming Pan Guangxin Wang Shizhong Wei Qiaobao Zhang National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of Non–Ferrous Materials Science&Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China Provincial and Ministerial Co–construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of High-temperature Structural and Functional MaterialsHenan University of Science and TechnologyLuoyang 471023China Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005China Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials Xiamen UniversityXiamen 361005China

Transition metal tungstate-based nanomaterials have become one of the research hotspots in electrochemistry due to their abundant natural resources,low costs,and environmental *** studies have demonstrated their significant potentials for electrochemical applications,such as supercapacitors,Li-ion batteries,Na-ion batteries,electrochemical sensing,and *** the rapidly growing research enthusiasm for this topic over the last several years,herein,a critical review of recent progress on the application of transition metal tungstates and their composites for electrochemical applications is *** relationships between synthetic methods,nano/micro structures and electrochemical properties are systematically ***,their promising prospects for future development are also *** is anticipated that this review will inspire ongoing interest in rational designing and fabricating novel transition metal tungstate-based nanomaterials for high-performance electrochemical devices.

关键词： transition metal tungstates supercapacitors lithium-ion batteries sodium-ion batteries electrochemical sensing electrocatalysis

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Redox mediators for high-performance lithium-oxygen batteries

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国家科学评论（英文版） 2022年第4期9卷 143-162页

作者： Yaying Dou Zhaojun Xie Yingjin Wei Zhangquan Peng Zhen Zhou Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001China Institute of New Energy Material Chemistry School of Materials Science and EngineeringNankai UniversityTianjin 300350China Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education) College of PhysicsJilin UniversityChangchun 130012China Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Aprotic lithium-oxygen(Li-O2)batteries are receiving intense research interest by virtue of their ultra-high theoretical specific ***,current Li-O2 batteries are suffering from severe barriers,such as sluggish reaction kinetics and undesired parasitic ***,molecular catalysts,*** mediators(RMs),have been explored to catalyse the oxygen electrochemistry in Li-O2 batteries and are regarded as an advanced *** fully unlock the capability of Li-O2 batteries,an in-depth understanding of the catalytic mechanisms of RMs is *** this review,we summarize the working principles of RMs and their selection criteria,highlight the recent significant progress of RMs and discuss the critical scientific and technical challenges on the design of efficient RMs for next-generation Li-O2 batteries.

关键词： Li–O2 batteries redox mediators catalysts oxygen reduction reaction oxygen evolution reaction

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Dynamic modulated single-photon routing

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Chinese Physics B 2023年第12期32卷 332-340页

作者：李浩珍曾然胡淼许蒙蒙周雪芳夏秀文许静平羊亚平 School of Communication Engineering Hangzhou Dianzi UniversityHangzhou 310018China Zhejiang Province Key Laboratory of Quantum Technology and Device Zhejiang UniversityHangzhou 310027China Key Laboratory of Advanced Micro-Structured Materials of Ministry of Education School of Physics Science and EngineeringTongji UniversityShanghai 200092China Institute of Atomic and Molecular Physics and Functional Materials School of Mathematics and PhysicsJinggangshan UniversityJi'an 343009China

The dynamic control of single-photon scattering in a pair of one-dimensional waveguides mediated by a time-modulated atom-cavity system is *** cases,where the waveguides are coupled symmetrically or asymmetrically to the atom-cavity system,are discussed in *** results show that such time-modulated atom-cavity configuration can behave as a dynamical tunable directional single-photon *** photons with different frequencies can dynamically be routed from the incident waveguide into any ports of the other with a 100%probability via adjusting the modulated amplitude or phases of the time-modulated atom-cavity coupling strengths,associate with the help of the asymmetrical waveguide-cavity ***,the influence of dissipation on the routing capability is *** is shown that the present single-photon router is robust against the dissipative process of the system,especially the atomic *** results are expected to be applicable in quantum information processing and design quantum devices with dynamical modulation.

关键词： single-photon router dynamical modulation waveguide-QED

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二甲基亚砜:一种沉积无机CsPbI3钙钛矿的有前景的溶剂

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science Bulletin 2023年第2期68卷 192-202,M0004页

作者：王海亮刘慧从董紫荆魏学源李卫平朱立群朱城白阳陈海宁 School of Materials Science and Engineering Beihang UniversityBeijing 100191China Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications MIIT Key Laboratory for Low-dimensional Quantum Structure and DevicesExperimental Center of Advanced MaterialsSchool of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China

无机CsPbI3钙钛矿具有适宜的带隙和优异的化学稳定性,是一种重要的光伏材料.然而,由于其钙钛矿相的稳定性较低且对溶剂敏感,因此沉积高质量CsPbI3钙钛矿薄膜仍是一个挑战.到目前为止,绝大部分高性能钙钛矿太阳能电池(PSCs)中使用的CsPbI... 详细信息

无机CsPbI3钙钛矿具有适宜的带隙和优异的化学稳定性,是一种重要的光伏材料.然而,由于其钙钛矿相的稳定性较低且对溶剂敏感,因此沉积高质量CsPbI3钙钛矿薄膜仍是一个挑战.到目前为止,绝大部分高性能钙钛矿太阳能电池(PSCs)中使用的CsPbI3钙钛矿薄膜都采用有毒性的N,N-二甲基甲酰胺作为主要溶剂,很大程度上限制了该类电池的工业化生产.二甲基亚砜(DMSO)由于对环境友好且具有良好的配位能力,是一种较为理想的溶剂,但目前DMSO作为溶剂沉积的CsPbI3钙钛矿薄膜质量较差,制备的电池性能较低.为此,本文首先揭示了生长过程中DMSO加合物的形成是限制CsPbI3钙钛矿薄膜质量的主要原因.通过引入真空处理过程,将加合物中的DMSO分子去除来诱导生成DMAPbI3(DMA=(CH3)2NH2+)中间体,经退火后,中间体转变为结晶度强、取向性高、缺陷密度低、均匀性好的CsPbI3钙钛矿薄膜.使用该CsPbI3钙钛矿薄膜作为光吸收层后,基于碳电极的无空穴传输层PSCs获得了16.7%的转换效率,是目前该类电池转换效率的新纪录.

关键词：钙钛矿太阳能电池电池转换效率光伏材料钙钛矿薄膜二甲基亚砜缺陷密度真空处理碳电极

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A facile solution phase synthesis of directly ordering monodisperse FePt nanoparticles

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Nano Research 2022年第1期15卷 446-451页

作者： Yongsheng Yu Lin He Junjie Xu Jiaming Li Sida Jiang Guanghui Han Baojiang Jiang Wenjuan Lei Weiwei Yang Yanglong Hou MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Beijing Key Laboratory for Magnetoelectric Materials and Devices(BKL-MMD) Beijing Innovation Center for Engineering Science and Advanced Technology(BIC-ESAT)School of Materials Science and EngineeringPeking UniversityBeijing 100871China School of Physics Harbin Institute of TechnologyHarbin 150001China Research Center of Basic Space Science Harbin Institute of TechnologyHarbin 150001China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the Peoples Republic of ChinaHeilongjiang UniversityHarbin 150080China

The ordered Pt-based intermetallic nanoparticles(NPs)with small size show superior magnetic or catalytic properties,but the synthesis of these NPs still remains a great challenge due to the requirement of high temperature annealing for the formation of the ordered phase,which usually leads to sintering of the ***,we report a simple approach to directly synthesize monodisperse ordered L1_(0)-FePt NPs with average size 10.7 nm without further annealing or doping the third metal atoms,in which hexadecyltrimethylammonium chloride(CTAC)was found to be the key inducing agent for the thermodynamic growth of the Fe and Pt atoms into the ordered intermetallic structure in the synthetic *** particular,10.7 nm L1_(0)-FePt NPs synthesized by the proper amount of CTAC show a coercivity of 3.15 kOe and saturation magnetization of 45 emu/g at room *** current CTAC-assisted synthetic strategy makes it possible to deeply understand the formation of the ordered Pt-based intermetallic NP in solution phase synthesis.

关键词： L1_(0)-FePt direct ordering nanoparticles magnetic properties

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Recent advances in bacterial outer membrane vesicles:Effects on the immune system,mechanisms and their usage for tumor treatment

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Journal of Pharmaceutical Analysis 2024年第12期14卷 1790-1801页

作者： Shuo Xiang Qiufang Yao Arshad Khan Dong Wang Center for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhenGuangdong518060China College of Advanced Materials Engineering Jiaxing Nanhu UniversityJiaxingZhejiang314001China Nanomedicine Department King Abdullah International Medical Research Center(KAIMRC)King Saud bin Abdulaziz University for Health SciencesMinistry of National Guard Health AffairsRiyadh11426Saudi Arabia

Tumor treatment remains a significant medical challenge,with many traditional therapies causing notable side *** research has led to the development of immunotherapy,which offers numerous *** inherently possess motility,allowing them to preferentially colonize tumors and modulate the tumor immune microenvironment,thus influencing the efficacy of *** outer membrane vesicles(OMVs)secreted by gram-negative bacteria are nanoscale lipid bilayer structures rich in bacterial antigens,pathogen-associated molecular patterns(PAMPs),various proteins,and vesicle *** features allow OMVs to stimulate immune system activation,generate immune responses,and serve as efficient drug delivery *** dual capability enhances the effectiveness of immunotherapy combined with chemotherapy or phototherapy,thereby improving anticancer drug *** research has concentrated on engineering OMVs to enhance production yield,minimize cytotoxicity,and improve the safety and efficacy of ***,OMVs hold great promise for applications in tumor immunotherapy,tumor vaccine development,and drug *** article provides an overview of the structural composition and immune mechanisms of OMVs,details various OMVs modification strategies,and reviews the progress in using OMVs for tumor treatment and their anti-tumor ***,it discusses the challenges faced in translating OMV-based anti-tumor therapies into clinical practice,aiming to provide a comprehensive understanding of OMVs'potential for in-depth research and clinical application.

关键词： Tumor treatment Outer membrane vesicles Immunotherapy Drug delivery

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Porous hybrid scaffold strategy for the realization of lightweight,highly efficient microwave absorbing materials

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Journal of Materials science & technology 2022年第34期129卷 215-222页

作者： Meng Zhu Yuting Lei Heng Wu Luo Kong Hailong Xu Xuanxuan Yan Yongjian Xu Lei Dai Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development Key Laboratory of Paper Based Functional MaterialsChina National Light IndustryNational Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science and TechnologyXi’an 710021China School of Engineering Computer and Mathematics SciencesAuckland University of Technology55 Wellesley Street EastAucklandNew Zealand School of Materials Science and Engineering Shaanxi University of Science and TechnologyXi’an 710021China Laboratory for Advanced Interfacial Materials and Devices Research Center for Smart Wearable TechnologyInstitute of Textiles and Clothingthe Hong Kong Polytechnic UniversityHong Kong SAR 999077China

Exploring an advanced and efficient electromagnetic(EM) wave absorbing material by improving dielectric loss capacity and adjusting impendence matching is crucial yet challenging. Herein, the bacterial cellulose(BC) derived carbon aerogel(CA) with a robust nanofibrous network was used as a conductive loss scaffold to dissipate EM waves effectively, and the Zn O microparticles with excellent dielectric properties and low electrical conductivity were decorated on the scaffold to adjust dielectric parameters and impedance matching adequately. By using different zinc precursors, the tunable size and morphologies of Zn O crystals were obtained due to the growth rate of different crystallographic, including flowerlike, nanorod like, and cauliflower-like morphologies, which is beneficial to strong multiple reflections,intensive interfacial polarization, better impendence matching, as well as excellent maintenance of the hierarchical structure. Owing to the appropriate impendence matching and the considerable EM wave dissipation, the CA@ZnO composites achieve a superior EM absorbing performance with a broad effective absorbing bandwidth(whole X band) and a minimum reflection coefficient(-53.3 d B). This work paves a new way for developing lightweight and highly efficient EM absorbing materials comprising the carbon scaffold and semiconductor microparticles.

关键词： Carbon scaffold ZnO microparticles Morphologies Impedance matching Microwave absorption

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Growth Behavior of Rubrene Thin Films on Hexagonal Boron Nitride in the Early Stage

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Chinese Journal of Chemistry 2022年第11期40卷 1298-1304,I0002页

作者： Yujia Wei Di Xue Lianlian Ji Jie Lu Qi Wang Xingyu Jiang Yinghui Sun Zi Wang Lizhen Huang Lifeng Chi Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesCollaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhouJiangsu 215123China College of Energy Soochow Institute for Energy and Materials InnovationsKey Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhouJiangsu 215006China Gusu Laboratory of Materials SuzhouJiangsu 215123China

Two-dimensional materials,with an in-plane ordered and dangling-bonding-free surface,are ideal substrates for fabricating high-quality crystalline thin ***,we show a systematic study on the growth of a benchmark organic semiconductor,rubrene,on hexagonal boron nitride(h-BN)substrate via physical vapor deposition from the initial amorphous phase to the final crystalline phase;the role of temperature in such transition and the epitaxy relationship between rubrene and h-BN are *** the increase of substrate temperature,the critical thickness of amorphous-crystalline-transition decreases and the morphology of crystalline phase also evolves from porous to *** substrate temperature reaches>100℃,the critical thickness reduces to only 0.5 nm and a precise layer-by-layer growth from the very first layer is achieved,which is quite rare for rubrene growing on other *** high ordering can be attributed to the fine epitaxy relationship between rubrene films and the h-BN surface lattice,and this film demonstrates good charge transport ability with a p-type field-effect mobility of>1 cm^(2)·V^(-1)·s^(-1).

关键词： Thin films Crystal growth Organic thin film transistors 2D materials Molecular electronics

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