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High-brightness near-infrared luminescent bioprobes based on lanthanide-doped Na3CrF6 nanoparticles

Science China Materials 2024年第12期67卷 4113-4114页

作者： Yun Xing Shiqi Yu Datao Tu Xueyuan Chen State Key Laboratory of Structural Chemistry Fujian Key Laboratory of Nanomaterialsand CAS Key Laboratory of Design and Assembly of Functional NanostructuresFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China University of Chinese Academy of Sciences Beijing 100049China

Over the past decade,near-infrared(NIR)luminescent materials have emerged as a frontier in photonics and material science,finding diverse applications in bioimaging,encryption,and photodetection[1].Particularly,NIR nanoprobes are widely utilized in life science and clinical medicine because of their high spatial resolution,deep tissue penetration,low optical absorption and scattering,and minimal autofluorescence[2,3].

关键词： nanoparticles frontier utilized

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designing a 2D van der Waals oxide with lone-pair electrons as chemical scissor

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National Science Review 2025年第1期12卷 113-119页

作者： Zhipeng Du Xu Chen Wei Liu Han Wang Qianting Xu Xiaoying Shang Yipeng Song Xueyuan Chen Junhua Luo Sangen Zhao State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian College University of Chinese Academy of Sciences CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Quantum Science Center of Guangdong–Hong Kong–Macao Greater Bay Area (Guangdong)

Two-dimensional（2D） van der Waals（vdW） materials are known for their intriguing physical properties,but their rational design and synthesis remain a great challenge for *** this work,we successfully synthesized a new non-centrosymmetric oxide,***6,with Sb3+lone-pair electrons serving as chemical scissor to generate its 2D vdW crystal *** and few-layer InSbMoO6flakes are readily obtained via facile mechanical *** exhibit strong second-harmonic generation（SHG）response with an effective second-order nonlinear optical susceptibility χeff（2）of 32.4 pm·***,the SHG response is in-plane anisotropic and directly proportional to the layer thickness,independent of layer *** addition,the InSbMoO6flakes exhibit excellent thermal and atmospheric stability,along with pronounced anisotropy in Raman *** work implies that using lone-pair electrons as chemical scissor is an effective strategy for designing and synthesizing new 2D vdW materials for integrated photonic applications.

关键词： 2D vdW materials crystal structure oxide chemical scissor second-harmonic generation

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The marriage of perovskite nanocrystals with lanthanide-doped upconversion nanoparticles for advanced optoelectronic applications

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Aggregate 2024年第5期5卷 9-22页

作者： Wen Zhang Wei Zheng Ping Huang Dengfeng Yang Zhiqing Shao Xueyuan Chen Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistryand CAS Key Laboratory of Design and Assembly of Functional NanostructuresFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouChina Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China FuzhouChina University of Chinese Academy of Sciences BeijingChina

The exceptional optoelectronic properties of lead halide perovskite nanocrystals(PeNCs)in the ultraviolet and visible spectral regions have positioned them as a promising class of semiconductor materials for diverse optoelectronic and photo-voltaic ***,their limited response to near-infrared(NIR)light due to the intrinsic bandgap(>1.5 eV)has hindered their applications in many advanced *** circumvent this limitation,it is of fundamental significance to inte-grate PeNCs with lanthanide-doped upconversion nanoparticles(UCNPs)that are capable of efficiently converting low-energy NIR photons into high-energy ultravi-olet and visible *** leveraging the energy transfer from UCNPs to PeNCs,this synergistic combination can not only expand the NIR responsivity range of PeNCs but also introduce novel emission profiles to upconversion luminescence with multi-dimensional tunability(e.g.,wavelength,lifetime,and polarization)under low-to-medium power NIR irradiation,which breaks through the inherent restric-tions of individual PeNCs and UCNPs and thereby opens up new opportunities for materials and device *** this review,we focus on the latest advance-ments in the development of PeNCs-UCNPs nanocomposites,with an emphasis on the controlled synthesis and optical properties design for advanced optoelectronic applications such as full-spectrum solar cells,NIR photodetectors,and multilevel *** future efforts and prospects toward this active research field are also envisioned.

关键词： energy transfer heterostructure lanthanide luminescence perovskite nanocrystals upconversion nanoparticles

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Anionic covalent organic framework electrolyte with tailored ion channels for high-areal-capacity solid-state lithium metal battery

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Science China chemistry 2025年第4期68卷 1533-1540页

作者： Xu Zhuang Yangdan Hui Yangyang Feng Jiajie Chen Junlan Chen Yaobing Wang College of Chemistry Institute of Molecular Engineering PlusFuzhou UniversityFuzhou 350116China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsState Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China University of Chinese Academy of Sciences Beijing 100049China Fujian College University of Chinese Academy of SciencesFuzhou 350002China

Covalent organic frameworks(COFs)are an emerging class for solid-state electrolytes due to their ordered and customizable ion transport *** high ionic conductivity(σ_(Li+))and Li^(+) transference number(t_(Li+))are achieved;the high-arealcapacity solid-state lithium metal battery(LMB)still encountered challenges;which is mainly determined by homogeneous Li^(+) flux through channels and ***;we design a COF coupling anionic skeletons with branched ion-conductive chains(COF-S)as tailored fast ion-transport channels to achieve high-areal-capacity solid-state *** the dispersed COF-S-based electrolyte is further obtained by incorporating ethoxylated trimethylolpropane triacrylate(ETPTA)and Li FSI(ETPTA-COF-S)via in situ light *** this way;the abundant SO_(3)-groups promote Li+adsorption and facilitate axial transport via 1D channels;thus enabling highσLi+of 1.29 m S cm^(-1)and tLi+of *** branched chains can tailor ion channels to suppress largesize anions transport;disperse and uniform Li+flux;thus leading to high average Coulombic efficiency(CE)up to 98.43%for 100 cycles(~800 h)at 0.5 m A cm^(-2)under the high areal capacity of 2 mAh cm^(-2).When paired with 2 m Ah cm^(-2)LiFePO_(4)(LFP)cathode and thin Li anode of 20μm;Li||ETPTA-COF-S||LFP exhibits superior cyclic stability for 80 cycles.

关键词： covalent organic framework ion channel sulfonic acid group gel electrolyte lithium metal battery high areal capacity

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Modulator-directed assembly of hybrid composites based on metalorganic frameworks and upconversion nanoparticles

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Nano Research 2023年第1期16卷 1482-1490页

作者： Yanhui Feng Xingjun Li Shan Lu Renfu Li Zhongliang Gong Xiaoying Shang Yifan Pei Wei Zheng Datao Tu Xueyuan Chen CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterialsand State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of chemistry Fuzhou universityFuzhou 350108China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350117China

Hybrid composites made of metal-organic frameworks(MOFs)and lanthanide-doped upconversion nanoparticles(UCNPs)have attracted considerable interest for their synergistically enhanced functions in various applications such as chemical sensing,photocatalysis,anticounterfeiting and ***,precise assembly of MOF/UCNP hybrid composites with tunable morphologies remains a challenge due to the lack of effective synthetic methods and fundamental understanding of the growth ***,we propose a modulator-directed assembly strategy to synthesize a series of ZIF-8@UCNP composites(ZIF-8=zeolitic imidazolate framework-8).The UCNPs densely paved on the surface of ZIF-8 microcrystals and endowed the composites with intense upconversion blue emission,which were verified by steady-state/transient photoluminescence(PL)spectroscopy and single-particle ***(EDA)was firstly used as a modulator to fine-tune the predominant MOF facets and realized distinct morphologies of the *** adjusting the concentration of EDA from 0 to 25 mmol/L,the morphology of the ZIF-8@UCNP composites was tuned from rhombic dodecahedron(RD)to truncated rhombic dodecahedron(TRD),cube with truncated edges(CTE),cube,and finally a unique form of interpenetration twins(IT).The nucleation and growth process of the ZIF-8@UCNP composites was monitored by time-dependent scanning electron microscopy(SEM)images and the formation mechanism was thoroughly ***,we demonstrated that the strategy for assembly of morphology-controllable ZIF-8@UCNP composites was generally applicable to various UCNPs with different sizes and *** proposed strategy is expected to open up new avenues for the controllable synthesis of MOF/UCNP composites toward diverse applications.

关键词： metal-organic frameworks upconversion nanoparticles hybrid composites ethylenediamine modulator

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Understanding the sluggish and highly variable transport kinetics of lithium ions in LiFePO_4

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Science China chemistry 2023年第11期66卷 3297-3306页

作者： Youcheng Hu Xiaoxiao Wang Peng Li Junxiang Chen Shengli Chen Hubei Electrochemical Power Sources Key Laboratory Department of ChemistryWuhan UniversityWuhan 430072China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

LiFePO_(4),one of the mainstream cathode materials of current EV batteries,exhibits experimental diffusion coefficients(D_(c))of Li^(+)which are not only several orders of magnitude lower than those predicted by the ionic hopping barriers obtained from theoretical calculations and spectroscopic measurements,but also span several orders from 10^(-14)to 10^(-18)cm^(2)s^(-1)under different states of charge(SOC)and the charging rates(C-rates).Atomic level understanding of such sluggishness and diversity of Li^(+)transport kinetics would be of significance in improving the rate performance of LiFePO_(4)through material and operation optimization but remain ***,we show that the high sensitivity of Li^(+)hopping barriers on the local Li–Li coordination environments(numbers and configurations)plays a key role in the ion transport *** is due a neural network-based deep potential(DP)which allows accurate and efficient calculation of hopping barriers of Li^(+)in LiFePO_(4)with various Li–Li coordination environments,with which the kinetic Monte-Carlo(KMC)method was employed to determine the D_(c)values at various C-rates and SOC across a broad ***,an accelerated KMC simulation strategy is proposed to obtain the D_(c)values under a wide range of SOC at low C-rates,which agree well with that obtained from the galvanostatic intermittent titration technique(GITT).The present study provides accurate descriptions of Li^(+)transport kinetics at both very high and low C-rates,which remains challenging to experiments and first-principles calculations,***,it is revealed that the gradient distributions of Li^(+)density along the diffusion path result in great asymmetry in the barriers of the forward and backward hopping,causing very slow diffusion of Li^(+)and the diverse variation of D_(c).

关键词： lithium iron phosphate diffusion coefficient machine-learning potential kinetic Monte Carlo simulations

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ZnMn_(3)O_(7):A New Layered Cathode Material for Fast-Charging Zinc-Ion Batteries

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Chinese Journal of structural chemistry 2022年第5期41卷 85-92页

作者： Ruitao Sun Qin Liu Wenzhuo Deng CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of NanomaterialsState Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100039China

Low-cost and high-energy-density manganese-based compounds are promising cathode materials for rechargeable aqueous zinc-ion batteries(AZIBs),however,they often experience cycling instability issues and inferior rate ***,we report a new layered manganese-based cathode material,ZnMn_(3)O_(7)(ZMO),which possesses a large interlayer spacing of 4.8Åand allows the intercalation of~1.23 Zn-ions per formula unit(corresponding to a capacity of~170 mAh/g).Importantly,ZMO exhibits good cycling stability(72.9%capacity retention over 400 cycles),ultrafast-charging capability(73%state of charge in 1.5 min),and an ultrahigh power density(3510 W/kg at 88 Wh/kg).Through kinetic characterization,the favorable diffusion of ions and the dominant capacitor contribution are found to be conducive to the achievement of superior fast charging ***,the charge storage mechanism is revealed by ex-situ XRD and ex-situ *** work may shed light on the design of high-performance electrode materials for AZIBs.

关键词： layered structure zinc-manganese oxide cathode zinc-ion battery

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3D printing technology for rechargeable Li/Na-ion batteries

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Journal of Energy chemistry 2025年第4期103卷 237-263页

作者： Ziting Chen Yihao Yang Songheng Xie Yangjie Liu Puwu Liang Xiang Hu Zhenhai Wen CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen EnergyFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350000FujianChina College of Chemistry Fuzhou UniversityFuzhou 350108FujianChina

The rapid advancement of energy storage technologies highlights the urgent need for innovative electrochemical energy storage(EES)systems featuring complex ***-dimensional(3D)printing has emerged as a groundbreaking solution,enabling the fabrication of customized,high-performance electrodes with precise structural *** approach enhances accuracy,convenience,and facilitates improved ion and electron *** this review,we systematically summarize recent advancements in leveraging 3D printing techniques for lithium-ion and sodium-ion *** begin by comparing the unique capabilities of various 3D printing methods against traditional fabrication techniques for producing tailored *** then address critical challenges across different battery module architectures-cathodes,anodes,electrolytes,and integrated systems-highlighting breakthroughs in material selection,ink formulation,and ***,we explore the future potential of 3Dprinted batteries in next-generation EES devices,emphasizing their role in advancing customizable,high-efficiency *** insights provided herein illuminate how 3D printing can significantly accelerate the development of advanced battery materials,fostering innovation in energy storage technology.

关键词： 3D printing Li/Na-ion batteries Electrode Electrolyte Integrated batteries

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Unlimited near-infrared photoswitching in inorganic photon avalanching nanocrystals

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Science China Materials 2023年第8期66卷 3379-3380页

作者： Jin Xu Guoqin Ma Xueyuan Chen CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of NanomaterialsState Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China Fujian College University of Chinese Academy of SciencesFuzhou 350116China

Luminescent materials capable of photoswitching driven by optical stimulation have been the robust tools of diverse advanced technologies,including superresolution imaging,nanophotonics,data storage,and optogenetics[1].Up to date,various kinds of photoswitchable materials have been developed,most of which(e.g.,organic fluorophores and proteins)are prone to photodegradation and usually operate in the ultraviolet or visible spectral regions[2].Near-infrared(NIR)light excitable inorganic upconversion nanocrystals(NCs)can offer significantly improved photostability and penetration depth.

关键词： inorganic ultraviolet visible

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Recent progress on photoactive nonprecious transition-metal complexes

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Science China chemistry 2025年第1期68卷 46-95页

作者： Zhong-Liang Gong Hong-Jie Zhang Yan Cheng Jianxun Liu Yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-Jiang Yao Yuan-Yuan Zhu Liang-Jin Xu Yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of TechnologyHefei 230009China State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical EngineeringBeijing Institute of TechnologyBeijing 100081China College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic MaterialsWuhan UniversityWuhan 430072China School of Chemistry and Chemical Engineering Anhui UniversityHefei 230601China Key Laboratory of Photochemical Conversion and Optoelectronic Materials&CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China

Photoactive complexes of nonprecious transition metals,mainly including those in the first-row and partially the second-row of the Periodic table of elements,have received increasing attention in view of their low cost and long-term *** are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices,artificial photosynthesis,photocatalysis,biodiagnostics,and therapeutics,*** review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes,including photoactive Zr,V,Cr,Mo,and W complexes,Mn complexes and hybrids,Fe,Co,Ni,and Cu complexes,and Zn and Cd complexes and hybrids.A particular focus is given on the molecular design,modulation of photophysical and photochemical properties,and applications of the representative and lately-developed nonprecious metal *** addition,a perspective on the future development in this field is provided at the end of this review.

关键词： photoactive metal complexes earth-abundant metals nonprecious metal complexes luminescence photochemistry

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