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SSRN 2022年

作者： Wu, Qirui Han, Songjiu Zhu, Jundong Chen, Anbang Zhang, Jiayu Yan, Zhen Liu, Jiantao Huang, Jianren Yang, Xiaoxiang Guan, Lunhui CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou350108 China School of Mechanical Engineering and Automation Fuzhou University Fuzhou350108 China

Soft ionic conductors (ICs) such as hydrogels and ionogels have attracted extensive attention as they are promising candidates as the key components used in flexible electronic devices. Nonetheless, hydrogels and ionogel-based materials reported by previous studies usually exhibit prominent problems, such as solvent leakage and evaporation, limiting their application in complex environment. In this work, solid-state conductive ionogels (SCIg) composed of long-chain copolymer networks without any volatile liquids were designed and prepared. The dynamic non-covalent bonds ensure its long-term stable signal monitoring as a sensor. The SCIg shows extraordinary comprehensive properties, including admirable tensile strength (0.97 MPa) under large deformations (λ=26.6 tensile stretch), promising conductivity (56.1 mS m -1 ) and surprising self-healing efficiency (>92%). Notably, the SCIgs solved a well-established problem in ionogels, namely the conflict of ionic conductivity versus mechanical properties. Moreover, a series of ionoelastomers based on the SCIg were further exploited as a resistance-type sensor, capacitive-type sensor and multifunctional electronic skins capable of detecting a variety of mechanical signals. The sensors deliver splendid long-term stability with signal responses. Meanwhile, the obtained SCIgs exhibit high efficiency ultraviolet (UV) curable 3D printability, enabling the bulk production of microcircuits with 130 μm diameter in a transitory time. This work shows that the developed SCIg presents great application potential in the fields of electronic skin, physiological signal detection and human-machine interface. © 2022, The Authors. All rights reserved.

关键词： 3D printers

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Electromagnetic Interference between Multiple Quantum Mechanical Domains in Electronic Devices 4

Electromagnetic Interference between Multiple Quantum Mechan...

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4th International Applied Computational Electromagnetics Society Symposium in China, ACES-China 2021

作者： Meng, Lingyi Yam, Chiyung Chen, Quan CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China Beijing Computational Science Research Center Beijing100193 China School of Microelectronics Southern University of Science and Technology Shenzhen518055 China

ISBN: (纸本)9781733509619

We study the electromagnetic interference between active components in complicated electronic structures. In our simulations, dynamic behaviors of these active components with detailed atom configurations are described by the first-principles methods, while the entire system is modeled by a novel coupled quantum mechanics and electromagnetics (QM/EM) in the real time domain. We demonstrate that electronic devices could be treated independently in the sense of classical electromagnetics below a particular operational frequency (e.g. 10 THz). Our time-domain QM/EM simulations could also quantitatively describe the dependency of electromagnetic interference on the separating distance between devices. The relationships between induction current and separating distance are compared at different operational frequencies. © 2021 Applied Computational Electromagnetics Society (ACES).

关键词： Signal interference

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Exploring the impact of basicity and oxygen vacancy for efficient CO2 adsorption in solid oxide electrolysis cells

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Journal of Power Sources 2025年 645卷

作者： Khan, Muhammad Nadeem Ye, Lingting Xie, Kui Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou350002 China University of Chinese Academy of Sciences Beijing100049 China School of Mechanical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai200240 China Fujian Normal University Fuzhou350117 China

A novel approach to boost the catalytic performance of cathode materials in solid oxide electrolysis cells (SOECs) is developed by modifying the oxygen ion basicity of the perovskite structures through strategic cation doping. In this study, Sr2Fe1.5-xCuxMo0.5O6−δ (SFCxM) perovskites are synthesized and systematically characterized to evaluate their oxygen ion basicity and electrocatalytic activity and assess their effects on the electrochemical performance. The Sr2Fe0.75Cu0.75Mo0.5O6−δ (SFCu0.75M) cathode demonstrates promising performance in experimental tests, achieving a current density of 0.91 A cm−2 at 1.8 V and 850 °C, with stable operation over 100 h in a CO2 atmosphere. These findings confirm that doping with higher-electronegativity ions, such as Cu, reduces the oxygen ion basicity, increases the oxygen vacancy concentration in the cathode, and enhances electrochemical performance. This approach provides crucial insights for engineering sophisticated electrodes suitable for direct carbon dioxide electrolysis and other catalytic electrochemical processes. © 2025 Elsevier B.V.

关键词： Electrolysis

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Photothermal lanthanide nanomaterials: From fundamentals to theranostic applications

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BMEMat(BioMedical Engineering Materials) 2024年第4期2卷 1-17页

作者： Zhuo Li Jiacheng Gong Shan Lu Xingjun Li Xiaobo Gu Jin Xu Jawairia Umar Khan Dayong Jin 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 SciencesFuzhouChina Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China FuzhouChina University of Chinese Academy of Sciences BeijingChina College of Chemistry and Materials Science Fujian Normal UniversityFuzhouChina School of Physical Science and Technology ShanghaiTech UniversityShanghaiChina Institute for Biomedical Materials&Devices(IBMD) Faculty of ScienceUniversity of Technology SydneySydneyAustralia

Photothermal lanthanide nanomaterials with unique photophysical properties have been innovatively explored for diagnostics and non‐invasive therapies,and hold great promise for precision *** this review,we start from the basic principles of excited‐state dynamics and provide a thorough comprehension of the main pathways for photothermal conversion in lanthanide *** influencing the photothermal effect such as lanthanide‐doping concentration,particle size,and crystal structure have been fully *** strategies for the design of efficient lanthanide‐based photothermal agents,including dye sensitization to break the absorption limit and semiconductor combination to add cross‐relaxation pathways,have also been ***,we highlight the cutting‐edge applica-tions of photothermal lanthanide nanoplatforms with optical diagnosis and temperature feedback in photothermia‐associated ***,the current challenges and future efforts for clinical applications are *** review is expected to offer a better understanding of photothermal mechanisms and inspire efforts for designing versatile lanthanide theranostic nanoplatforms.

关键词： lanthanide nanomaterials optical imaging photothermal mechanism photothermal therapy temperature feedback theranostics

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Near-Infrared-Triggered Chirality-Specific Photodynamic Therapy Based on Hybrid Upconversion Nanoparticle Hydrogels

SSRN

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SSRN 2023年

作者： Guan, Tianyong Liu, Yan Li, Jiayao Chen, Mingmao Shang, Xiaoying Hu, Ping Li, Renfu Gao, Hang Tu, Datao Zheng, Wei Yang, Yingjie Chen, Xueyuan CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fujian Fuzhou350108 China College of Biological Science and Engineering Fuzhou University Fujian Fuzhou350108 China

Recently, chiral inorganic nanomaterials have attracted considerable interest for their chiroptical property and chirality-dependent phototherapeutic performance. Herein, for the first time, we propose a near-infrared circularly polarized light (NIR-CPL) responsive supramolecular hydrogels with high ground state chirality (|gabs| up to 3.2 × 10-2) and intense upconverted circularly polarized luminescence activity (|glum| up to 2.6 × 10-2) for tumor photodynamic therapy. After supramolecular co-assembly, methylene blue loaded lanthanide upconversion nanoparticles (UCMBs) are effectively attached to the helical nanofibers constructed by amino acid precursors, which can achieve NIR-CPL triggered reactive oxygen species (ROS) production. The obtained hybrid hydrogels exhibit efficient NIR light conversion, improved photodynamic performance and efficient tumor inhibition. These findings provide a new perspective for exploring NIR-CPL responsive upconversion materials with outstanding chirality-specific phototherapy characteristic and efficient therapeutic outcomes for further biomedical application. © 2023, The Authors. All rights reserved.

关键词： Ground state

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"Chameleon-like" optical behavior of lanthanide-doped fluoride nanoplates for multilevel anti-counterfeiting applications

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Nano Research 2019年第6期12卷 1417-1422页

作者： Wenwu You Datao Tu Renfu Li Wei Zheng Xueyuan Chen CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Lanthanide-based luminescent anti-counterfeiting materials are widely used in various kinds of ***,the emission color of traditional lanthanide-based luminescent materials usually remains nearly unaltered upon different excitation lights,which may only work for single-level ***,the NaYbF4∶2%Er@NaYF4 core/shell nanoplates (NPs) with "chameleon-like" optical behavior are *** NPs display single-band red or green downshifting (DS) emission upon excitation at 377 or 490 nm,*** 980 nm excitation,the color of upconversion (UC) emission can be finely tuned from green to yellow,and to red with increasing the excitation power density from 0.1 to 4.0 W/cm^*** proposed materials readily integrate the advantages of excitation wavelength-dependent DS single-band emissions and sensitive excitation power-dependent UC multicolor emissions in one and the same material,which has never been reported ***,the proposed NPs exhibit excellent performance as security labels on trademark tag and security ink on painting,thus revealing the great potential of these lanthanide-doped fluoride NPs in multilevel anti-counterfeiting applications.

关键词： lanthanide-doped chameleon-like upconversion downshifting multilevel anti-counterfeiting

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A Linear Ce^(Ⅲ) Complex Based on in-situ Generated N-hydroxy-1,8-naphthalenedicarboximide

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Chinese Journal of Structural Chemistry 2021年第11期40卷 1475-1481,1407页

作者： LIU Yang CAO Xue-Li WANG Wei LI Guo-Ling LI Shun HUANG You-Gui College of Chemistry Fuzhou UniversityFuzhou 350108China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Xiamen Institute of Rare Earth Materials Haixi InstitutesChinese Academy of SciencesXiamen 361021China

A Ce^(Ⅲ) linear complex of N-hydroxy-1,8-naphthalenedicarboximide(HL)has been synthesized with acenaphthoquinone dioxime(acndH_(2))under solvothermal conditions,in which L is generated by a series of in-situ reactions starting from acndH2.X-ray crystallography reveals the coordination chains of Ce^(Ⅲ) ions are assembled into a 3D supramolecular framework viaπ···π*** title complex has been characterized by IR and UV-Vis spectra and thermogravimetric analysis(TGA).Furthermore,the fluorescent properties study demonstrated a ligand-based emission of the Ce^(Ⅲ) complex with~6 nm blue-shift compared with the emisision of the HL ligand.

关键词： N-hydroxy-1,8-naphthalenedicarboximide acenaphthoquinone dioxime rare earth fluorescence complex X-ray crystallography

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Broadband NIR photon upconversion generates NIR persistent luminescence for bioimaging

arXiv

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arXiv 2024年

作者： Yang, Shuting Qi, Bing Sun, Mingzi Dai, Wenjing Miao, Ziyun Zheng, Wei Huang, Bolong Wang, Jie The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou College of Chemistry Chemical Engineering & Materials Science Soochow University Suzhou215123 China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China

Upconversion persistent luminescence (UCPL) phosphors that can be directly charged by near-infrared (NIR) light have gained considerable attention due to their promising applications ranging from photonics to biomedicine. However, current lanthanide-based UCPL phosphors show small absorption cross-sections and low upconversion charging efficiency. The development of UCPL phosphors faces challenges of lacking flexible upconversion charging pathways and poor design flexibility. Herein, we discovered a new lattice defect-mediated broadband photon upconversion process and the accompanied NIR-to-NIR UCPL in Cr-doped zinc gallate nanoparticles. The zinc gallate nanoparticles can be directly activated by broadband NIR light in the 700-1000 nm range to produce persistent luminescence at about 700 nm, which is also readily enhanced by rationally tailoring the lattice defects in the phosphors. This proposed UCPL phosphors achieved a signal-to-background ratio of over 200 in bioimaging by efficiently avoiding interference from autofluorescence and light scattering. Our findings reported the lattice defect-mediated photon upconversion for the first time, which significantly expanded the horizons for the flexible design of NIR-to-NIR UCPL phosphors toward broad applications. Copyright © 2024, The Authors. All rights reserved.

关键词： Bioimaging

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Microporous and Grain-Sized design of High-Yield Porous Carbon Materials by Using Potassium Acetate and P-Phenylenediamine

SSRN

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SSRN 2023年

作者： Shen, Zhongrong Cheng, Lin Zhang, Kai Nie, Qiaojun Wang, Gang Cai, Xiaokang Zhang, Ming Liu, Chao College of Chemistry Fuzhou University Fuzhou350108 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials Fujian Institute of Research The Structure of Matter Chinese Academy of Sciences Fuzhou350002 China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen361021 China Xiamen Tungsten Co. Ltd Xiamen361009 China

Porous carbon with large specific surface area (SSA) and high porosity is an ideal electrode material for supercapacitors. However, the traditional KOH activation remains several barriers, such as low yield, high corrosion, and pollution. In this paper, nitrogen-doped (1.68% N content) porous carbon (C-PKAC1.5) with high yield (26.3%), large SSA (2820.65 m2/g) and uniform size was prepared from p-phenylenediamine (PDA) in one-pot by using potassium acetate (KAc) instead of KOH. Throughout the process, KAc played the vital roles: 1) KAc could form hydrogen bonding network with PDA and mixed homogeneously, while PDA providing nitrogen dopant and carbon source. 2) After polymerization, the KAc lamellae reconstituted and achieved geometric partition of polymer matrix, left diffusion micro-tunnels and provided homogenized size of carbon particles at the following stage. 3) During activation, KAc melt and diffused into polymer matrix through micro-tunnels and converted to K2CO3 to activate from inside to outside, while avoiding the low yield for conventional activation from outside to inside. The supercapacitor assembled for C-PKAC1.5 exhibits high specific capacitance of 25.17 F/g and 82.77% of capacitance retention after 30,000 cycles, and achieves a high energy density of 8.29 Wh/L at a power density of 199.25 W/L. © 2023, The Authors. All rights reserved.

关键词： Supercapacitor

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Metal-Organic Framework-Derived Heterostructural Bi-Sm2o3 as a Novel Sulfur Immobilizer for High-Performance Lithium-Sulfur Batteries

SSRN

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SSRN 2023年

作者： Lai, Xiaoxu Chen, Qiujie Wang, Haodong Chen, Chengwei Chen, Zifang Chen, Chi Sun, Dan CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China College of Chemistry and Materials Fujian Normal University Fujian Fuzhou350007 China Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen361021 China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen361021 China

Owing to their high theoretical energy density, low cost, and eco-friendliness, lithium-sulfur (Li-S) batteries are one of the most promising alternatives to Li-ion batteries. However, the commercialization of Li-S batteries has been hampered by their rapid capacity fading and poor cycling lifetime due to the shuttling and sluggish redox kinetics of polysulfides (LiPSs). To address these issues, functionalizing a commercial separator is a simple and effective strategy. In this study, we developed a novel modified polypropylene separator coated with samarium-based metal-organic framework-derived heterostructural bi-phased Sm2O3 (Bi-Sm2O3), which contains cubic Sm2O3 (C-Sm2O3) and monoclinic Sm2O3 (M-Sm2O3) phase in a single polycrystalline particle. The alleviated "shuttle effect" of LiPSs can be achieved by synergistic effect at the Bi-Sm2O3 surface through strong adsorption of LiPSs on M-Sm2O3 surface followed by catalytic conversion over C-Sm2O3. An optimized Bi-Sm2O3-modified separator with a thickness of 150 µm can enable the Li-S battery to deliver an improved cycling and rate performance with a high specific capacity of 860.1 mAh g−1 at 2 C and a low decay rate of 0.11% per cycle over 500 cycles at 1 C. © 2023, The Authors. All rights reserved.

关键词： Separators

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