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Parallelogram 3d-4f-5d heterometallic clusters based on trilacunary tungstoantimonates with excellent proton conductivity

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Chinese chemical Letters 2024年第3期35卷 528-531页

作者： Haiying Wang Han Xu Chaolong Chen Yingjie Zhu Yikang Zhang Dongdi Zhang Jingyang Niu Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular SciencesHenan UniversityKaifeng 475004China School of Pharmaceutical Science&Yunnan Key Laboratory of Pharmacology for Natural Products Kunming Medical UniversityKunming 650500China Collaborative Innovation Center of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surface and Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Two 3d-4f-5d heterometallic cluster-containing polyoxometalates,formulated as Na_(22){(SbW_(9)O_(33))_(4)[La_(3)W_(6)MO_(18)(H_(2)O)_(8)(CH_(3)COO)_(4)]_(2)}·nH_(2)O(abbreviated as La_(6)M_(2),M=Co/Mn)were synthesized and structurally ***-crystal X-ray diffraction analyses reveal that the polyanions of La_(6)Co_(2)and La_(6)Mn_(2)consist of the uncommon 3d-4f-5d clusters{La_(6)W_(12)Co_(2)}and{La_(6)W_(12)Mn_(2)},which are encapsulated by four trilacunary Keggin tungstoantimonates to form the parallelogram-shaped title ***,the polyanions can be extended into a two-dimensional(2D)frame by the linkage of peripheral Na+*** inner space of the 2D layer was filled with water molecules and thus an H-bonded network was formed,which is expected to exhibit a fascinating proton *** study of water-assisted proton conduction demonstrated that La_(6)Co_(2)and La_(6)Mn_(2)were temperature-and humiditydependent proton conductors,respectively,and the proton conductivities could reach 1.3×10^(-2)and 2.3×10^(-2)S/cm at 65℃and 90%RH conditions.

关键词： Polyoxometalate Parallelogram Heterometallic 3d-4f-5d cluster Proton conductivity

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Enhancing long-term stability of bio-photoelectrochemical cell by defect engineering of a WO_(3-x) photoanode

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Journal of Energy Chemistry 2023年第5期80卷 584-593,I0013页

作者： Cheng Zhang Xuchao Zheng Yongyue Ning Zihan Li Zhongdong Wu Xiaoyu Feng Gangyong Li Zhongyuan Huang Zongqian Hu College of Textiles and Clothing Xin Jiang UniversityUrumqi 830046XinjiangChina Beijing Institute of Radiation Medicine Beijing 100850China State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082HunanChina Department of Chemistry Northeast Normal UniversityChangchun 130024JilinChina Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education National&Local United Engineering Laboratory for Power BatteriesKey Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin ProvinceAnalysis and Testing CenterDepartment of ChemistryNortheast Normal UniversityChangchun 130024JilinChina Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200241China Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006HunanChina

Bio-photoelectrochemical cells(BPECs)can further expand the use of conventional biofuel cells for renewable energy,but the poor stability of the photoelectrode still hinders their practical ***,a BPEC capable of long-term operating in a fuel-free model is fabricated by WO3-xphotoanode with oxygen vacancy(Ov)and bilirubin oxidase catalyzed *** construction of Ov on the WO3surface significantly suppresses the dissolution of W species into the electrolyte,and improves the charge separation efficiency and the reaction kinetics during the photoelectrochemical oxygen evolution process,thus enhancing the stability and power output performance of the *** a result,the assembled BPEC can output an open circuit voltage of 0.81 V and deliver a maximum output power of up to 283μW cm^(-2).Impressively,the BPECs maintain 97%of their original power after 36000 s of consecutive discharge under an enclosed *** fuel-free BPEC based on a robust WO3-xphotoanode shows excellent promise for accurate application.

关键词： WO_(3) Oxygen vacancy Oxygen reduction reaction Fuel-free Bio-photoelectrochemical cell

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Porphyrin-based covalent organic frameworks with undulated layers for efficient photocatalytic CO2 reduction

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science Bulletin 2025年

作者： Ma, Xiaolin Hu, Jingyue Li, Senzhi Zheng, Tianyu Gao, Ying Han, Yuesheng Pan, Houhe Bian, Yongzhong Jiang, Jianzhuang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of Chemistry and Chemical Engineering School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing100083 China Daxing Research Institute University of Science and Technology Beijing Beijing100083 China Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province School of Chemistry and Chemical Engineering Guizhou University Guiyang550025 China

Two-dimensional (2D) porphyrin (Por)-based covalent organic frameworks (COFs) provide an attractive and effective strategy for photocatalytic CO2 reduction, but the layered structure due to π–π stacking is challenging for the exposure of active sites and transfer of mass and photogenerated carriers. In this study, a series of 2D conjugated porphyrin-based COFs were prepared using porphyrin blocks with linking units having different degrees of twisting. According to the experimental and theoretical calculation results, owing to the large spatial steric hindrance between the two carbazole units connected by the N–N single bond, a greatly undulating layered structure was formed in NN-Por-COF, which enhanced mass transfer and exposed more catalytic sites. The introduction of carbazole also modulated the electronic structure of the porphyrin Co center, which lowered the reaction energy barrier. The optimization of the structural and electronic effects led to the excellent photocatalytic CO2 reduction performance of NN-Por-COF, with CO conversion rates as high as 22.38 and 3.02 mmol g−1 h−1 under pure and diluted (10%) CO2 atmosphere, respectively, which are superior to those of most of the reported porphyrin-based photocatalysts. © 2025 science China Press

关键词： CO(2) reduction Covalent organic frameworks Porphyrin Undulated layers Visible light photocatalysis

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Nanoarchitectonics of point-of-care diagnostics for sweat biomarkers analysis

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Nano materials science 2024年第6期6卷 647-671页

作者： Xuan Lin Arya Vasanth Aditya Ashok Hoang-Phuong Phan Kevin M.Koo Mohammed A.Amin Yusuf Valentino Kaneti Carlos Salomon Md Shahriar A.Hossain Yusuke Yamauchi Mostafa Kamal Masud School of Chemistry and Molecular Biosciences The University of QueenslandBrisbaneQLD4072Australia Australian Institute of Bioengineering and Nanotechnology The University of QueenslandBrisbaneQLD4076Australia Graduate School of Biomedical Engineering The University of New South WalesSydneyNSW2052Australia The University of Queensland Centre for Clinical Research(UQCCR) HerstonQueensland4029Australia Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group University of Queensland Centre for Clinical ResearchFaculty of MedicineThe University of QueenslandBrisbaneQLD 4029Australia School of Mechanical and Mining Engineering Faculty of EngineeringArchitecture and Information Technology(EAIT)The University of QueenslandBrisbaneQLD4072Australia Department of Materials Process Engineering Graduate School of EngineeringNagoya UniversityFuro-choChikusa-kuNagoyaAichi464-8603Japan Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoul 03722South Korea

Sweat contains numerous vital biomarkers such as metabolites,electrolytes,proteins,nucleic acids and antigens that reflect hydration status,exhaustion,nutrition,and physiological *** healthcare diagnosis relies on disease diagnostics in sophisticated centralized laboratories with invasive sample collection(e.g.,chemical analyses,plasma separation via centrifugation,tissue biopsy,etc.).Cutting-edge point-of-care diagnostics for sweat biomarker analysis allow for non-invasive monitoring of physiologically related biomarkers in sweat and real-time health status ***,using advanced nanoarchitectures,including nanostructured platforms and nanoparticles,can enhance the specificity,sensitivity,wearability and widen the sensing modality of sweat ***,we comprehensively review the secretory mechanisms,clinical uses of sweat biomarkers,and the design,principle,and latest technologies of sweat *** an emphasis on cutting-edge technologies for sweat biomarker analysis,this review chronicles the issues associated with the current sweat biomarkers analysis of sweat biomarkers and provides insights into strategies for enhancing the translation of such biosensors into routine clinical practice.

关键词： Sweat biomarker Nanoarchitectonics Nanostructures Sweat biosensor Point-of-care diagnostics Wearable sweat sensor

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Design of Quantum Dot Color Convertors for Inkjet-Printed Optoelectronic Devices: Violet-Converted Full Color Mini-LED

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Advanced materials Technologies 2024年第3期9卷

作者： Lin, Chen-Te Zhuan, Yi-long Jung, Nian-Ting Hoang, Minh-Son Chen, Hsueh-Shih Ph.D. Program in Prospective Functional Materials Industry College of Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu30013 Taiwan College of Semiconductor Research National Tsing Hua University Hsinchu30013 Taiwan Department of Chemical Engineering & Materials Science College of Engineering Yuan Ze University Taoyuan32003 Taiwan

This study presents a strategy of design and development of inkjet-printable and UV-curable quantum dot (QD) polymer-based inks and color conversion (CC) film for use in optoelectronic devices. At first, the preparation of a QD ink is focused on two key aspects, that are QD chemical compatibility and ink printability. In the hybrid organic–inorganic polymer/QDs system, it must be formulated to a well-dispersed ink, in which a dispersant additive without negative effect on QDs is introduced to enhance the QD suspension. As the optical density of final dried QD film is one of the most critical concerns in color conversion, QD concentration should be as high as possible in the ink, which increases the ink viscosity. Consequently, a trade-off between QD concentration and the ink viscosity associated with the ink-jetting temperature is considered to ensure the ink printability. Finally, the designed QD ink is printed as color conversion film on a mini-LED panel composed of two violet mini-chips to produce red and green emissions, while blue emission directly comes from a blue mini-chip. The final conversion efficiency of QDCC on mini-LED panel are between 35% and 45%, showing the promising applications in optoelectronic devices. © 2023 Wiley-VCH GmbH.

关键词： Semiconductor quantum dots

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Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy engineering for Ultra‑Thin Electromagnetic Wave Absorber

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Nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu Xiao Shangru Zhai Chuang Xue Guangping Zheng Deqing Zhang Renchao Che Junye Cheng Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).Nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

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Switching the coordination geometry to enhance erbium(Ⅲ)single-molecule magnets

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Chinese chemical Letters 2023年第5期34卷 535-538页

作者： Qian-Cheng Luo Ning Ge Yuan-Qi Zhai Tengbo Wang Lin Sun Qi Sun Fanni Li Zhendong Fu Yan-Zhen Zheng Frontier Institute of Science and Technology School of Chemistry and School of PhysicsXi'an Jiaotong UniversityXi'an 710054China The School of Automation Science and Technology Xi'an Jiaotong UniversityXi'an 712000China Institute of Molecular and Crystal Engineering College of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004China Department of General Surgery The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an 710061China Department of Talent Highland The First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an 710061China Neutron Platform Songshan Lake Materials LaboratoryDongguan 523808China

Two erbium(Ⅲ)complexes[ErCl(OAr^(Ad))_(3)][Na(THF)_(6)](1)and Er(OAr^(Ad))_(3)(2)are successfully prepared by using one variety of"hard"base ligand with large steric *** coordination geometry around the Er(Ⅲ)site changes from distorted tetrahedral to flat trigonal pyramid geometry in different solvent environment due to the removal of the coordinated *** an alternation significantly enhances the single-molecule magnet(SMM)behavior and makes the field-induced effective energy barrier(Ueff)arrive at 43(1)cm-1for the *** with theoretical calculations,this study shows that strong equatorial ligand field and high local symmetry are critical to suppress the quantum tunneling of the magnetization(QTM)and achieve high-performance erbium(Ⅲ)based SMMs.

关键词： Single-molecule magnets Erbium Lanthanide complexes Magnetic anisotropy Slow magnetic relaxation

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SiO2-reinforced Poly (methyl methacrylate): Tribology Performance as Service Life Sensor

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Sensors and materials 2023年第8-2期35卷 2845-2854页

作者： Shi, Shih-Chen Zeng, Xin-Xing Chen, Tao-Hsing Wang, Chih-Chia Lin, Yue-Feng Department of Mechanical Engineering National Cheng Kung University No. 1 University Road Tainan City70101 Taiwan Department of Mechanical Engineering National Kaohsiung University of Science and Technology No. 415 Jiangong Rd. Sanmin Dist. Kaohsiung City807618 Taiwan Department of Chemical and Materials Engineering Chung Cheng Institute of Technology National Defense University No. 75 Shiyuan Road Taoyuan335009 Taiwan System Engineering and Technology Program National Yang Ming Chiao Tung University No. 1001 University Road Hsinchu300093 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology No. 57 Sec. 2 Zhongshan Rd. Taiping Dist. Taichung411030 Taiwan

Poly (methyl methacrylate) (PMMA), which is suitable for use in the human body owing to its biocompatibility, is commonly used in medical applications such as bone nails, bone cement, and dentures. However, owing to its hard and brittle nature, PMMA can cause damage when it is subjected to excessive stress and can also cause severe wear. In this study, three different sizes of silica particles were used as reinforcing additives to enhance the wear resistance of PMMA composites. A pin-on-disk wear test was conducted to record the coefficient of friction and wear volume, and the wear volume was measured using a 3D laser scanning microscope. In the wear test, the transfer film of micron and submicron particles produced a plowing effect, resulting in wide grooved wear scars and a higher wear rate than the raw material. The nanoparticle transfer film reduced direct material wear, the wear scars were fine and flat, and the wear rate was decreased, reducing the wear of SiO2-reinforced PMMA composites by 40%. The experimental results revealed that the wear volume is proportional to the wear time. In addition, the observed area of the transfer film on the wear counterpart can be used as a service life sensor of the coating material. © MYU K.K.

关键词： Tribology

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Catalytic remodeling of complex alkenes to oxonitriles through C=C double bond deconstruction

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science (New York, N.Y.) 2025年第6738期387卷 1083-1090页

作者： Cheng, Zengrui Huang, Kaimeng Wang, Chen Chen, Lili Li, Xinyao Hu, Zhibin Shan, Xinyuan Cao, Peng-Fei Sun, Haofeng Chen, Wei Li, Chenhao Zhang, Ziyao Tan, Hui Jiang, Xue Zhang, Guikai Zhang, Zhongying Lin, Min Wang, Liang Zheng, Anmin Xia, Changjiu Wang, Teng Song, Song Shu, Xingtian Jiao, Ning State Key Laboratory of Natural and Biomimetic Drugs Chemical Biology Center School of Pharmaceutical Sciences Peking University Beijing China State Key Laboratory of Catalytic Materials and Reaction Engineering Research Institute of Petroleum Processing SINOPEC Beijing China Department of Chemistry College of Sciences Shanghai Engineering Research Center of Organ Repair Shanghai University Shanghai China College of Chemistry State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing China Key Laboratory of Precision and Intelligent Chemistry University of Science and Technology of China Hefei China State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan China Beijing Synchrotron Radiation Facility Institute of High Energy Physics University of Chinese Academy of Sciences Beijing China Key Lab of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou China Interdisciplinary Institute of NMR and Molecular Sciences School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan China Changping Laboratory Beijing China

Deconstructive transformation of carbon-carbon double bonds (C=C) is a pivotal strategy in synthetic chemistry and drug discovery. Despite the substantial advances in olefin metathesis and ozonolysis for natural product synthesis through C=C double-bond cleavage, the catalytic remodeling of complex molecules through C=C double-bond deconstruction has been underdeveloped. We report a heterogeneous copper-catalyzed C=C double-bond cleavage, which enables the remodeling of complex molecules by converting the carbons on either side of the C=C double bond to carbonyl and cyano groups, respectively. In particular, this method provides an efficient protocol to conveniently transform terpenoids, glycals, steroids, and bioactive molecules to privileged scaffolds with underexplored chemical space.

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On-Chip Perovskite Nanocrystal Laser Integrated with Long-Range Surface Plasmon Polariton Waveguide by Etching-Free Lithographic Patterning

On-Chip Perovskite Nanocrystal Laser Integrated with Long-Ra...

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2022 JSAP-Optica Joint Symposia, JSAP 2022

作者： Lee, Yang-Chun Lin, Hsin-Chang Lin, Cheng-Chieh Ho, Ya-Lun Xing, Di Chen, Mu-Hsin Lin, Bo-Wei Chen, Li-Yin Chen, Chun-Wei Delaunay, Jean-Jacques School of Engineering The University of Tokyo Japan Department of Photonics National Sun Yat-sen University Taiwan International Graduate Program of Molecular Science and Technology National Taiwan University Academia Sinica Taiwan Department of Materials Science and Engineering National Taiwan University Taiwan Molecular Science and Technology Program Taiwan International Graduate Program Academia Sinica Taiwan Department of Photonics National Yang Ming Chiao Tung University Taiwan Center of Atomic Initiative for New Materials National Taiwan University Taiwan

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