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SSRN 2024年

作者： Nguyen Quoc Trinh, Bui Dinh, The Nam Vietnam National University Hanoi University of Science Faculty of Physics 334 Nguyen Trai Thanh Xuan Hanoi Viet Nam Tokyo Institute of Technology School of Materials and Chemical Technology Department of Materials Science and Engineering 2-12-1 Okayama Meguro Tokyo152-8550 Japan Vietnam National University Hanoi Vietnam Japan University Faculty of Advanced Technology and Engineering Nanotechnology Program Luu Huu Phuoc Nam Tu Liem Hanoi Viet Nam

P-type oxide semiconductors as a conducting channel layer have attracted huge attention owing to wide applications in electronic devices. In this study, multi-component oxide-semiconductor Cu1-2xMnxSnxO thin films with x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, and 0.33 were successfully prepared on glass substrates, by using a solution process accompanied with a spin-coating technique. One obtained that, a phase transition between the CuO monoclinic structure and the rock salt structure was observed when leveling up the concentration of Mn and Sn, simultaneously to descending the concentration of Cu in the precursors. The crystallite size was found to decrease throughout the samples, with a minimum value of 9.8 nm towards the equimolar ratio. The scanning electron microscope confirmed further the downward tendency as mentioned above, and indicated an improvement in the film surfaces as well. According to the optical absorption measurement, the bandgap energy was determined to be in a range from 2.68 eV to 3.44 eV. Interestingly, the sheet resistance of Cu1-2xMnxSnxO films witnessed a sharp drop from 5.24 kΩ/sq of CuO to 0.034 kΩ/sq at the film with the molar ratio Cu:Mn:Sn being 34:33:33. © 2024, The Authors. All rights reserved.

关键词： Crystallite size

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Effect of Surface Activation on the Corrosion Resistance of a MAO/Ni-P Composite Coating on LZ91 Magnesium Alloy

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Journal of the Taiwan Institute of chemical Engineers 2023年第1期147卷

作者： Chen, Chi-An Lee, Jeou-Long Jian, Shun-Yi Lee, Chia-Yu Ger, Ming-Der Combination Medical Device Technology Division Medical Devices R&D Service Department Metal Industries Research & Development Centre Kaohsiung802 Taiwan Department of Chemical and Materials Engineering Lung Hwa University of Science and Technology Taoyuan330 Taiwan Department of Material Engineering Ming Chi University of Technology New Taipei City Taiwan Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei Taiwan Graduate School of Defense Science Chung Cheng Institute of Technology National Defense University Taoyuan Taiwan Department of Chemical & Materials Engineering Chung Cheng Institute of Technology National Defense University Taoyuan Taiwan System Engineering and Technology Program National Chiao Tung University Hsin-Chu Taiwan

Background: LZ91 Magnesium alloy with a dual-phase structure has improved mechanical properties and a low density of about 1.48 g/cm3 but their limited resistance to corrosion limits their application. Therefore, it is a great challenge to increase the stability of LZ91 alloys under corrosive factors and environments. Methods: This study uses micro-arc oxidation (MAO) and an electroless nickel-phosphorus (Ni-P) plated composite film to increase the corrosion resistance of LZ91 magnesium alloy. Before electroless Ni-P plating, the MAO layers are activated by palladium catalysts at different pH values to produce composite coatings. SEM, EDS and Image J are used to determine the surface properties and elemental composition of the samples. The corrosion resistance is measured using a potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS) in 3.5 wt.% NaCl solution. Findings: The results show that the MAO coating is activated by an acid catalyst and the surface is obviously corroded. The electroless Ni-P plating grows into the MAO coating and the substrate corrodes. Therefore, corrosive medium (chloride ion) easily enter to the substrate and pitting corrosion occurred. On the contrary, activation by a neutral catalyst (pH=7) maintains the original structure of the MAO coating and provides a good bonding interface for the Ni-P coating. Form the potentiodynamic analysis can be finds that the corrosion potential for the neutral catalyst treated sample is -0.35V and the corrosion current density value is 1.77×10−6 A/cm2, so the corrosion characteristic become better than the acid catalyst treated samples. In terms of the long-term resistance after 48 h, EIS analysis shows that the resistance value remains at about 7.6×104 Ω•cm2. A composite coating that is compact and with excellent resistance to corrosion resistance is produced, which provides better protection for LZ91 magnesium alloys. © 2023 Taiwan Institute of chemical Engineers

关键词： Corrosion resistance

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Carbon dioxide chemistry towards carbon-neutrality

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Green chemical engineering 2022年第2期3卷 93-95页

作者： Shoubhik Das Valerio D'Elia Liang-Nian He Arjan W.Kleij Tohru Yamada Department of Chemistry Universiteit AntwerpenAntwerp2020Belgium Department of Materials Science and Engineering School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology(VISTEC)555 Moo 121210PayupnaiWangChanRayongThailand State Key Laboratory and Institute of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin300071China Institute of Catalan Research and Advanced Studies(ICREA) Pg.Lluis Companys 2308010BarcelonaSpain Institute of Chemical Research of Catalonia(ICIQ) Barcelona Institute of Science&TechnologyAv.Països Catalans 1643007TarragonaSpain Department of Chemistry Keio UniversityHiyoshiKohoku-kuYokohamaKanagawa223-8522Japan

Startling rise of carbon dioxide concentration in the atmosphere has become a serious concern to scientists and ***,reduction of CO_(2) will be ideal to save the future world but increasing number of pop-ulation and theirbelongings is the major drawback to imply *** Covid-19 pandemic reduced the CO_(2) concentration temporarily in the last two years,but still carbon dioxide concentrations are ata recordhigh.

关键词： dioxide carbon neutral

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Taming Reactive Oxygen Species:Mitochondria-Targeting Aggregation-Induced Emission Luminogen for Neuron Protection via Photosensitization-Triggered Autophagy

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CCS Chemistry 2022年第7期4卷 2249-2257页

作者： Chao Chen Ruoyao Zhang Jianyu Zhang Yufan Zhang Haoke Zhang Zaiyu Wang Xiaolin Huang Sijie Chen Ryan T.K.Kwok Jacky W.Y.Lam Dan Ding Ben Zhong Tang Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute for Advanced StudyState Key Laboratory of Molecular NanoscienceDivision of Life ScienceDepartment of Chemical and Biological EngineeringThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong 999077 State Key Laboratory ofMedicinal Chemical Biology Key Laboratory of Bioactive MaterialsMinistry of EducationCollege of Life SciencesNankai UniversityTianjin 300071 Ming Wai Lau Centre for Reparative Medicine Karolinska InstitutetHong Kong 999077 Center for Aggregation-Induced Emission SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640 Shenzhen Institute of Aggregate Science and Technology School of Science and EngineeringThe Chinese University of Hong KongShenzhen 518172 AIE Institute Guangzhou Development DistrictHuangpuGuangzhou 510530

Oxidative damage to cells leads to accumulated harmful wastes,which in turn aggravate the imbalance of reactive oxygen species(ROS)and related ***,provoking the cellular defense system against severe oxidation and maintaining ROS homeostasis are ***,we designed and synthesized a powerful mitochondria-targeting aggregation-induced emission photosensitizer(named DTCSPY)by maximal restriction of heat *** is demonstrated that taming ROS generation within mitochondria through photosensitization-triggered autophagy via DTCSPY achieved a better neuroprotective effect against oxidative damages than Nacety-L-cysteine and vitamin *** work not only provides a new way to design high-performance photosensitizers by regulating the photophysical property,but also verifies the concept that taming ROS can be used for cell protection against destructive oxidation,thereby displaying broad prospects for alleviating oxidation-related diseases and promoting cell-based therapy.

关键词： aggregation-induced emission mitochondrial targeting photosensitizer reactive oxygen species neuron protection

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LiOH: A "double-edged" effect toward electrochemical oxidation of Li_(2)O_(2)

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Journal of Energy Chemistry 2021年第6期30卷 401-405,I0010页

作者： Qinghua Cui Lipo Ma Peng Zhang Yuliang Cao Jiawei Wang Laboratory of Advanced Spectro-electrochemistry and Lithium-ion Batteries Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina Department of Materials Science&Engineering Academy for Advanced Interdisciplinary StudiesShenzhen Key Laboratory of Solid State BatteriesGuangdong Provincial Key Laboratory of Energy Materials for Electric PowerSouthern University of Science and TechnologyShenzhen 518055GuangdongChina College of Chemistry and Molecular Sciences Engineering Research Center of Organosilicon Compounds&Materials of Ministry of EducationWuhan UniversityWuhan 430072HubeiChina Institute of Materials Engineering Beijing Institute of Collaborative InnovationBeijing 100094China

The aprotic lithium-oxygen battery(Li-O_(2) battery) has attracted much attraction for the future advanced battery technologies due to its ultra-high theoretical energy density that can well meet the ever-growing ener... 详细信息

关键词： Lithium-oxygen batteries LiOH-doped Li_(2)O_(2) Li_(2)O_(2)oxidation Differential electrochemical mass spectrometer Isotope-labelling

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Photo-thermal CO_(2) reduction with methane on group Ⅷ metals:In situ reduced WO_(3) support for enhanced catalytic activity

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Chinese Journal of Catalysis 2021年第11期42卷 1976-1982页

作者： Huimin Liu Xianguang Meng Weiwei Yang Guixia Zhao Dehua He Jinhua Ye School of chemical and environmental engineering Liaoning University of TechnologyJinzhou 121001LiaoningChina International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS)1-1 NamikiTsukubaIbaraki 305-0044Japan Innovative Catalysis Program Key Laboratory of Organic Optoelectronics&Molecular Engineering of Ministry of EducationDepartment of ChemistryTsinghua UniversityBeijing 100084China

Photo-thermal CO_(2) reduction with methane(CRM)is beneficial for solar energy harvesting and energy *** search for efficient photo-thermal catalysts is of great ***,we reveal that group Ⅷ metal catalysts supported by optical material WO_(3) are more effective for photo-thermal CRM,giving catalytic activities with visible light assistance that are 1.4-2.4 times higher than that achieved under thermal *** activity enhancement(1.4-2.4 times)was comparable to that achieved with plasmonic-Au-promoted catalysts(1.7 times).Characterization results indicated that WO_(3) was partially reduced to WO_(3-x) in situ under the reductive CRM reaction atmosphere,and that WO_(3-x) rather than WO_(3) enhanced the activities with visible light *** method provides a promising approach for improving the activity of catalysts under light irradiation.

关键词： Tungsten oxide Visible light In situ reduction Photocatalysis CO_(2) reduction

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Supramolecular engineering of cell membrane vesicles for cancer immunotherapy

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science Bulletin 2022年第18期67卷 1898-1909,M0004页

作者： Shaolong Qi Haiyan Zhang Xueyan Zhang Xinyang Yu Yajun Wang Qian-Fang Meng Kai Yang Bing Bai Rui Tian Shoujun Zhu Lang Rao Feihe Huang Guocan Yu Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China Institute of Biomedical Health Technology and Engineering Shenzhen Bay LaboratoryShenzhen 518132China State Key Laboratory of Chemical Engineering Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou 310027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215China State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics Center for Molecular Imaging and Translational Medicine School of Public HealthXiamen UniversityXiamen 361102China

The clinical translation of nanomedicines has been strongly hampered by the limitations of delivery vehicles,promoting scientists to search for novel *** cell membrane-based delivery systems have attracted extensive attention,further functionalizations are urgently desired to augment their theranostic *** propose a cell-friendly supramolecular strategy to engineer cell membranes utilizing cyclodextrin-based host–guest molecular recognitions to fix the defects arising from chemical and genetic *** this study,the supramolecular cell membrane vesicles(SCMVs)specifcally accumulate in tumors,benefting from tumor-homing capability and the enhanced permeability and retention *** co-delivering indocyanine green and an indoleamine 2,3-dioxygenase inhibitor effectively ablate tumors combining photodynamic therapy and *** by host–guest inclusion complexation,SCMVs successfully encapsulate resiquimod to repolarize tumor-associated macrophages into M1 phenotype,synergizing with immune checkpoint blockade *** supramolecular engineering methodology based on noncovalent interactions presents a generalizable and cell-friendly tactic to develop living cell–originated nanomaterials for precise cancer therapy.

关键词： Cancer theranostics Host–guest systems Immunotherapy Nanomedicine Supramolecular chemistry

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Unassisted photoelectrochemical CO2 reduction by employing Ⅲ–Ⅴ photoelectrode with 15% solar-to-fuel efficiency

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Carbon Energy 2025年第03期 6-15页

作者： Karthik Peramaiah Purushothaman Varadhan Vinoth Ramalingam Bilawal Khan Pradip Kumar Das Hao Huang Hui-Chun Fu Xiulin Yang Vincent Tung Kuo-Wei Huang Jr-Hau He Chemistry Program Center for Renewable Energy and Storage Technologies (CREST) and Division of Physical Science and Engineering King Abdullah University of Science and Technology (KAUST) Institute of Sustainability for Chemicals Energy and Environment (ISCE2) Agency for Science Technology and Research (A*STAR) School of Computing Engineering and Technology Robert Gordon University Department of Materials Science and Engineering City University of Hong Kong Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Department of Chemical System and Engineering University of Tokyo

Solar-driven carbon dioxide reduction reaction（CO2RR） provides an opportunity to produce value-added chemical feedstocks and ***,achieving efficient and stable photoelectrochemical（PEC） CO2RR into selective products is challenging owing to the difficulties associated with the optical and the electrical configuration of PEC devices and electrocatalyst ***,we construct an efficient,concentrated sunlight-driven CO2RR setup consisting of InGaP/GaAs/Ge triple-junction cell as a photoanode and oxide-derived Au（Ox-Au） as a cathode to perform the unassisted PEC *** one-sun illumination,a maximum operating current density of11.5 mA cm-2with an impressive Faradaic efficiency（FE） of ～98% is achieved for carbon monoxide（CO） production,leading to a solar-to-fuel conversion efficiency of ～15%.Under concentrated intensity of 10 sun,the photoanode records a maximum current density of ～124mA cm-2and maintains ～60% of FE for CO *** results demonstrate crucial advancements in usingⅢ-Ⅴ based photoanodes for concentrated PEC CO2RR.

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Influence of magnesium and calcium sulfate whisker on crystallization characteristics of poly (butylene adipate-co-terephthalate) and Poly(butylene succinate)

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Journal of Reinforced Plastics and Composites 2024年

作者： Mao, Hsu-I Liu, Shu-Hui Chu, Jui-Ching Shiu, Jia-Wei Chen, Pei-Yin Chen, Chin-Wen Department of Molecular Science and Engineering Institute of Organic and Polymeric Materials Research and Development Center of Smart Textile Technology National Taipei University of Technology Taipei Taiwan Climate Change Research Center National Environmental Research Academy Taoyuan Taiwan Division of Polymer Research Material and Chemical Research Laboratories Department of Polymer Processing Industrial Technology Research Institute Hsinchu Taiwan

Inorganic fillers of whisker-like morphology are considered promising materials, and they have gained significant attention in recent years as a substitute for glass fibers due to their fibrous surface characteristics and extremely low bulk density. This study selected magnesium sulfate whiskers (MSWs) containing crystal water and pure calcium sulfate whiskers (CSWs) as fillers. They were physically blended with biodegradable polymers PBAT and PBS in a range of 0.1 wt.% to 2 wt.% to form composite materials. The non-isothermal crystallization behavior of the composite materials was studied using differential scanning calorimetry (DSC). The data indicated that with an increase in whisker content, the crystallization temperature (Tc) of composites increased, and the addition of a small amount of whiskers led to a reduction in the half-crystallization time of the composite materials, indicating the crystallization capacity of the materials has been enhanced to varying degrees. Analysis via POM unveiled a consistent pattern of decreased spherulite size and heightened spherulite count with the introduction of whiskers. This phenomenon is ascribed to the whisker fillers’ function as nucleating agents within the polymer matrices, thereby stimulating the crystallization process. Interestingly, the findings suggest that CSWs exert a more significant influence on crystallization than MSWs, likely due to the distinct single fiber morphology of the former filler. © The Author(s) 2024.

关键词： Sulfur compounds

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Length and conjugation-controlled memristive functions of metallopolymer monolayers

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science China materials 2025年第4期68卷 998-1003页

作者： Chang Wei Ziming Zhou Shumu Li Yuan Li Wenjing Hong Xuan Pang Mao Li State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China University of Science and Technology of China Hefei230026China Key Laboratory of Analytical Chemistry for Living Biosystems Institute of ChemistryChinese Academy of SciencesBeijing Mass Spectrum CenterBeijing100190China Key Laboratory of Organic Optoelectronics and Molecular Engineering Department of ChemistryTsinghua UniversityBeijing100084China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun130012China

Solid-phase synthesis as a bottom-up strategy may be a superior way to integrate sophisticated functions into an ultrathin film for miniaturized ***,the sluggish reaction dynamics at the solid-liquid interface have been a great ***,we present four electrochemical reactions for rapidly synthesizing length and conjugation-controlled metallopolymer *** electrosynthesis requires self-assembled monolayers as templates as a prerequisite to predefine the growth and orientation of the *** involves a pair of redox reactions:the oxidation self-coupling of pyrene or carbazole,and the reduction self-coupling of the alkyne or vinyl,*** can form conjugation-controlled connections of monomers and provide different lengths of *** resulting metallopolymer monolayers show similar values in thickness and theoretical molecular length,indicating that these metallopolymers stand almost vertically and uniaxially on electrodes with minimum polymer *** crystalline monolayers exhibit both high modulus and conductance while presenting the memristive functions with optical and electrical binary responses as a function of the length and conjugation-controlled metallopolymer *** is highly anticipated that critical factors including reproducibility,speed,and operational simplicity with the robust design of various molecular junctions will enable rapid automated synthesis of two-dimensional semiconductors for integrated and miniaturized optoelectric devices.

关键词： solid-phase synthesis solid-phase electrosynthesis polymer monolayer polymer brush memristor

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