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Progress and perspective of Li_(1+x)Al_(x)Ti_(2-x)(PO_(4))_(3) ceramic electrolyte in lithium batteries

InfoMat 2021年第11期3卷 1195-1217页

作者： Ke Yang Likun Chen Jiabin Ma Yan-Bing He Feiyu Kang Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center Tsinghua Shenzhen International Graduate SchoolInstitute of Materials Research(IMR)ShenzhenChina School of Materials Science and Engineering Tsinghua UniversityBeijingChina

The replacement of liquid organic electrolytes with solid-state electrolytes(SSEs)is a feasible way to solve the safety issues and improve the energy density of lithium *** SSEs materials that can well match with high-voltage cathodes and lithium metal anode is quite significant to develop high-energy-density lithium ***_(1+x)Al_(x)Ti_(2-x)(PO_(4))_(3)(LATP)SSE with NASICON structure exhibits high ionic conductivity,low cost and superior air stability,which enable it as one of the most hopeful candidates for all-solidstate batteries(ASSBs).However,the high interfacial impedance between LATP and electrodes,and the severe interfacial side reactions with the lithium metal greatly limit its applications in *** review introduces the crystal structure and ion transport mechanisms of LATP and summarizes the key factors affecting the ionic *** side reaction mechanisms of LATP with Li metal and the promising strategies for optimizing interfacial compatibility are *** also summarize the applications of LATP including as surface coatings of cathode particles,ion transport network additives and inorganic fillers of composite polymer *** last,this review proposes the challenges and the future development directions of LATP in SSBs.

关键词： crystal structure interfaces ionic conductivity Li_(1+x)Al_(x)Ti_(2-x)(PO_(4))_(3) lithium batteries

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Batch growth of wafer-scale nanocrystalline NbSe_(2)film for surface-enhanced Raman spectroscopy

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National science Open 2025年第2期4卷 219-232页

作者： Huihui Lin Yiwen Li Yuxin Li Meng-Xuan Li Luyan Wu Zhaolong Chen Jing Li Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)Singapore 627833Singapore National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210093China State Key Laboratory of Nuclear Physics and Technology Center for Applied Physics and TechnologyPeking UniversityBeijing 100871China Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China State Key Laboratory of Flexible Electronics(LoFE) Jiangsu Key Laboratory for BiosensorsInstitute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)School of Materials Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023China Guangdong Provincial Key Laboratory of Nano-Micro Materials Research School of Advanced MaterialsPeking University Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China

Noble metal-based surface-enhanced Raman spectroscopy(SERS)has emerged as an ultrasensitive technique capable of detecting single molecules through their unique vibrational ***,achieving robust SERS nano-materials that combine significant enhancement factors,scalable reproducibility,and superior chemical stability remains a significant *** present an oxygen-free vapor deposition technique for wafer-scale fabrication of nanocrystalline NbSe_(2)(NC-NbSe_(2))films on SiO2/Si substrates,which is compatible with batch *** NC-NbSe_(2)films exhibit remarkable chemical stability across both crystalline domains(average size~8.1 nm)and grain *** stability,combined with enhanced surface adsorption and a high density of states near the Fermi level,enables superior SERS *** 6G detection demonstrates a sensitivity of 1×10^(-10)M,comparable to noble metal-based SERS ***,the NC-NbSe_(2)film maintains stable SERS signals under harsh thermal and chemical *** scalable approach enables the creation of uniform,reproducible SERS atomic thin film,advancing applications in microelectronics and sensing technologies.

关键词： NbSe_(2) metallic transition-metal dichalcogenides surface-enhanced Raman scattering(SERS) wafer-scale growth molecular sensing

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Regulating the Deposition of Insoluble Sulfur Species for Room Temperature Sodium-Sulfur Batteries

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Chemical research in Chinese Universities 2022年第1期38卷 128-135页

作者： WANG Chaozhi CUI Jingqin FANG Xiaoliang ZHENG Nanfeng Pen-Tung Sah Institute of Micro-Nano Science and Technology State Key Laboratory for Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy MaterialsNational&Local Joint Engineering Research Center for Preparation Technology of NanomaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005P.R.China Fujian Science&Technology Innovation Laboratory for Energy Materials of China Xiamen 361005P.R.China

Room temperature sodium-sulfur(RT-Na-S) batteries are regarded as promising candidates for next-generation high-energy-density batteries. However, in addition to the severe shuttle effect, the inhomogeneous deposition of the insoluble sulfur species generated during the discharge/charge processes also contributes to the rapid capacity fade of RT-Na-S batteries. In this work, the deposition behavior of the insoluble sulfur species in the traditional slurry-coated sulfur cathodes is investigated using microporous carbon spheres as model sulfur host materials. To achieve uniform deposition of insoluble sulfur species, a self-supporting sulfur cathode fabricated by assembling microporous carbon spheres is designed. With homogeneous sulfur distribution and favorable electron transport pathway, the self-supporting cathode delivers remarkably enhanced rate capability(509 mA·h/g at 2.5 C, 1 C=1675 mA/g), cycling stability(718 mA·h/g after 480 cycles at 0.5 C) and areal capacity(4.98 mA·h/cm2 at 0.1 C), highlighting the great potential of manipulating insoluble sulfur species to fabricate high-performance RT-Na-S batteries.

关键词： Sodium sulfur battery Polysulfide Discharge/charge product High sulfur loading Stable cycling

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Modulating contact properties by molecular layers in organic thin-film transistors

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Electron 2023年第2期1卷 82-89页

作者： Li Sun Yating Li Jiacheng Xie Liqi Zhou Peng Wang Jian-Bin Xu Yi Shi Xinran Wang Daowei He National Laboratory of Solid State Microstructures Key Lab of Optoelectronic Devices and Systems with Extreme PerformancesSchool of Electronic Science and Engineeringand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjingChina National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjingChina Department of Physics University of WarwickCoventryUK Department of Electronic Engineering and Materials Science and Technology Research Center The Chinese University of Hong KongHong Kong SARChina School of Integrated Circuits Nanjing UniversitySuzhouChina

Advanced organic devices and circuits demand both ultrahigh charge carrier mobilities and ultralow-resistance ***,due to a larger access resistance in staggered organic thin-film transistors(OTFTs),the achievement of ultralow contact resistance(Rc)is still a *** modulation of contact resistance by molecular layers near the interface has been rarely ***,we demonstrate that fewlayer organic single crystals are grown on hafnium oxide(HfO_(2))by solution-shearing *** utilize these organic crystals to fabricate bottom-gate staggered OTFTs with different contact *** results show that the contact properties of OTFTs are obviously modulated by crystal *** tri-layer(3L)evaporated-Au C10-DNTT OTFTs exhibit optimal electrical performance,including ultralow Rc of 5.6Ω⋅cm,recorded transfer length of 0.4μm,field-effect mobility over 14 cm^(2)V^(−1)s^(−1),threshold voltage lower than 0.3 V,and long-term air stability over 8 *** main cause is that the metal atoms can penetrate into the charge transport layer,with damage-free,in 3L evaporated-Au OTFTs;nevertheless,it cannot be realized in other *** to layer stacking of conjugated molecules and polymers,our strategy can efficiently modulate the contact resistance to aid the development of highperformance organic devices and circuits.

关键词： contact resistance mobility organic thin-film transistor single crystal

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Experimental observation of multiple topological nodal structure in LaSb_(2)

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science China(Physics,Mechanics & Astronomy) 2024年第4期67卷 138-145页

作者： Yuxi Qiao Fuyi Wang Huaiqiang Wang Zicheng Tao Zhicheng Jiang Zhengtai Liu Soohyun Cho Fayuan Zhang Qingkai Meng Wei Xia Yichen Yang Zhe Huang Jishan Liu Zhonghao Liu Zengwei Zhu Shan Qiao Yanfeng Guo Haijun Zhang Dawei Shen State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China National Synchrotron Radiation Laboratory and School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210093China School of Physics and Technology Nanjing Normal UniversityNanjing 210023China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and TechnologyWuhan 430074China ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China Institute of High-Pressure Physics School of Physical Science and Technology Ningbo UniversityNingbo 315211China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Unconventional fermions in the immensely studied topological semimetals are the source for rich exotic topological ***,using symmetry analysis and first-principles calculations,we propose the coexistence of multiple topological nodal structure in LaSb_(2),including topological nodal surfaces,nodal lines and in particular eightfold degenerate nodal points,which have been scarcely observed in a single ***,utilizing angle-resolved photoemission spectroscopy,we confirm the existence of nodal surfaces and eightfold degenerate nodal points in LaSb_(2).The intriguing multiple topological nodal structure might play a crucial role in giving rise to the large linear *** work renews the insights into the exotic topological phenomena in LaSb_(2).

关键词： eightfold degenerate points multiple topological nodal structure angle-resolved photoemission spectroscopy linear unsaturated magnetoresistance

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Accurate quantification of TiO_(2)(B)'s phase purity via Raman spectroscopy

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Green Energy & Environment 2023年第5期8卷 1371-1379页

作者： Jiamiao Ran Hui Liu Hongliang Dong Peng Gao Haowei Cheng Jianing Xu Hailun Wang Zixing Wang Qingfeng Fu Jiaxu Yan Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology of Clean EnergyHunan Province Key Laboratory for Advanced Carbon Materials and Applied TechnologyHunan UniversityChangsha410082China College of Chemistry and Material Science Hunan Agricultural UniversityChangsha410128 China Center for High Pressure Science and Technology Advanced Research PudongShanghai201203China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai201899China Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(Nanjing Tech)30 South Puzhu RoadNanjing211800China

Bronze phase titanium dioxide(TiO_(2)(B))could be a promising high-power anode for lithium ion ***,TiO_(2)(B)is a metastable material,so the as-synthesized samples are inevitably accompanied by the existence of anatase *** has been found that the TiO_(2)(B)'s purity is positively correlated with its electrochemical ***,we have established an accurate quantification of the TiO_(2)(B)/anatase ratio,by figuring out the function between the purity of TiO_(2)(B)phase in the high purity range and its Raman spectra features in combination of the calibration by the synchrotron radiation X-ray diffraction(XRD).Compared with the time-consuming electrochemical method,the rapid,sensitive and non-destructive features of Raman spectroscopy have made it a promising candidate for determining the purity of TiO_(2)(B).Further,the correlations developed in this work should be instructive in synthesizing pure TiO_(2)(B)and furthermore optimizing its electrochemical charge storage properties.

关键词： TiO_(2)(B) Phase purity Raman spectroscopy Synchrotron XRD Charge storage properties

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A spin-based magnetic scanning microscope for in-situ strain tuning of soft matter

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Chinese Physics B 2023年第5期32卷 102-107页

作者：丁哲孙豫蒙王孟祺余佩郑宁冲臧一鹏王鹏飞王亚聂越峰石发展杜江峰 CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China Jiangsu Key Laboratory of Artificial Functional Materials Nanjing UniversityNanjing 210093China College of Engineering and Applied Science Nanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China School of Biomedical Engineering and Suzhou Institute for Advanced Research University of Science and Technology of ChinaSuzhou 215123China

We present a magnetic scanning microscope equipped with a nitrogen-vacancy(NV) center scanning probe that has the ability to mechanically tune the strain of soft matter in-situ. The construction of the microscope and a continuous straintuning sample holder are discussed. An optically detected magnetic resonance protocol utilized in the imaging is *** order to show the reliability of this microscope, the strain conduction is estimated with finite element simulation, and xray diffraction is required for calibration when freestanding crystal films are under consideration. A magnetic imaging result is displayed to demonstrate the nano-scale imaging capability. The microscope presented in this work is helpful in studying strain-coupled magnetic physics such as magnetic phase transition under strain and strain-tuned cycloidal orientation tilting.

关键词： nitrogen-vacancy(NV)center antiferromagnetism strain tuning soft matter

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Surface Ligand Evolution:Sulfur-Directed Covalent Bonding of PPh_(3) on Pd_(4)S with Improved Semi-hydrogenation of Terminal Alkynes

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Precision Chemistry 2024年第5期2卷 200-207页

作者： Wentong Jing Shiguang Mo Weijie Zhang Wenting Zhou Kunlong Liu Jie Wei Ruixuan Qin Nanfeng Zheng New Cornerstone Science Laboratory State Key Laboratory for Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materialsand National&Local Joint Engineering Research Center of Preparation Technology of NanomaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China China Resources Cement Technology R&D(Guangxi)Co Ltd. Nanning 530008China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361102China

Surface modification of metallic nanocatalysts with organic ligands has emerged as an effective strategy to enhance catalytic selectivity,although offten at the expense of catalytic *** this study,we demonstrate a compelling approach by surface modifying Pd2S nanocrystals with PPhz ligands,resulting in a catalyst with excellent catalytic activity and durable selectivity for the semi-hydrogenation of terminal *** and theoretical investigations reveal that the presence of S sites on the Pd surface directs PPh_(3) ligands to preferentially form covalent bonds with S,creating distinctive surface S=PPh_(3) *** configuration induces a partial positive charge on Pd,facilitating hydrogen transfer and thus promoting catalytic ***,the covalent bond between the ligand and catalyst surface forms a robust network,ensuring ligand stability and increasing the hydrogenation energy barrier of ***,the Pd_(4)S@PPhz catalyst exhibits an improved catalytic selectivity with durability in terminal alkyne *** study introduces an effective strategy for designing selective hydrogenation catalysts with an enhanced performance.

关键词： Pd nanocatalysts surface modification selective hydrogenation catalytic stability alkyne semi-hydrogenation

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Porous nitrogen-enriched hollow carbon nanofibers as freestanding electrode for enhanced lithium storage

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Chinese Journal of Chemical engineering 2021年第4期34卷 416-422页

作者： Xiaosa Xu Yuqian Qiu Jianping Wu Baichuan Ding Qianhui Liu Guangshen Jiang Qiongqiong Lu Jiangan Wang Fei Xu Hongqiang Wang State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi'an 710072China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstr 2001069 DresdenGermany

Onedimensional porous carbons bearing high surface areas and sufficient heteroatom doped functionalities are essential for advanced electrochemical energy storage devices,especially for developing freestanding film *** we develop a porous,nitrogenenriched,freestanding hollow carbon nanofiber(PNFHCF)electrode material via filtration of polypyrrole(PPy)hollow nanofibers formed by in situ selfdegraded templateassisted strategy,followed by NH3assisted *** PNFHCF retains the freestanding film morphology that is composed of threedimensional networks from the entanglement of 1D nanofiber and delivers 3.7fold increase in specific surface area(592 m^(2)g^(-1))compared to the carbon without NH_(3)treatment(FHCF).In spite of the enhanced specific surface area,PNFHCF still exhibits comparable high content of surface N functionalities(8.8%,atom fraction)to *** developed hierarchical porous structure without sacrificing N doping functionalities together enables the achievement of high capacity,highrate property and good cycling stability when applied as selfsupporting anode in lithiumion batteries,superior to those of FHCF without NH3 treatment.

关键词： Energy Electrochemistry Nanomaterials Hollow carbon nanofibers Freestanding electrode Lithium-ion batteries

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Multidisciplinary and multiscale nanoscience research roadmap based on large scientific facilities

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science China Chemistry 2024年第8期67卷 2497-2523页

作者： Yuan Zeng Shuhan Zhang Yuecong Guo Yalin Cong Xu Ding Peihua Li Yunxiang Lin Wenzhi Ren Hui Su Weigang Sun Liuxin Xu Guikai Zhang Shihua Chen Yu Chen Weiren Cheng Shengqi Chu Yong Guan Jinru Han Jie Lin Hengjie Liu Zheyi Liu Pan Luo Fanchun Meng Sicong Qiao Zongyin Song Ying Wang Zhao Wu Chenyu Yang Meng Yang Shirui Yang Zi Yin Zhibin Yin Pengjun Zhang Hongyu Zhang Pingping Zheng Jia Zhou Wanlin Zhou Pengfei An He Cheng Chunhai Fan Xingjiu Huang Yong Lei Lina Li Mu Li Qinghua Liu Shuming Peng Li Song Zhihu Sun Yangchao Tian Fangjun Wang Lihua Wang Liming Wang Shiqiang Wei Aiguo Wu Chunlei Xiao Xueming Yang Panchao Yin Jing Zhang Mingxin Zhang Yaling Wang Chunying Chen CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety New Cornerstone Science LaboratoryNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Institute of Solid State Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology Zhejiang International Cooperation Base of Biomedical Materials Technology and ApplicationCAS Key Laboratory of Magnetic Materials and DevicesNingbo Cixi Institute of Biomedical EngineeringZhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China College of Chemistry and Chemical Engineering Hunan Normal UniversityChangsha 410081China State Key Laboratory of Luminescent Materials and Devices South China Advanced Institute for Soft Matter Science and TechnologySouth China University of TechnologyGuangzhou 510640China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute of Advanced Science Facilities Shenzhen 518107China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Acade

With the advancement of modern science and technology, large scientific facilities are increasingly oriented toward demand and application, and can be used for basic research as well as serving multiple disciplines. Developing large scientific facilities and related analytical technologies enhances understanding of large scientific facilities and popularizes their application in research across multiple disciplines. The combination of light or neutron sources from large scientific facilities and advanced analytical technologies can be achieved for materials structure information, dynamics study of chemical reactions, high dissociation of biomolecules, 3D visualization of energy materials or biological samples, etc. We first introduce the progress of domestic large scientific facilities of synchrotron radiation(SR) and free electron lasers(FELs) with different wavelengths and neutron *** further discuss the comparison between Chinese and typical foreign facilities in X-ray radiation from X-ray tubes, synchrotrons, X-ray FELs, and neutron sources based on physical parameters of light and neutron sources. In addition, we focus on the technological progress and perspectives combined with advanced X-ray radiation and neutron sources of large scientific facilities in China, especially in the nanoscience fields of energy catalysis and biological science. We hope that this roadmap will provide references on technology and methods to experimental users, as well as prospects for future development of technologies based on large research infrastructure facilities. Comprehensive studies and guidelines for basic research to practical application in various disciplines can be made with the assistance of large scientific facilities.

关键词： large scientific facilities synchrotron radiation FEL light sources neutron sources spectroscopic analysis methods X-ray imaging techniques structural information chemical dynamics

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