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TEGDME Electrolyte Additive for High-performance Zinc Anodes

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Chemical Research in Chinese Universities 2023年第6期39卷 1037-1043页

作者： ZHANG Weiguo ZHANG Chong wang Hongzhi wang huanhuan Department of Applied Chemistry School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350P.R.China

Aqueous zinc ion batteries(AZIBs)are expected to have a wide range of applications for large-scale electrochemical energy storage systems,but their practical application is severely limited by the presence of zinc dendrites,hydrogen evolution reactions(HER),corrosion reactions,and other *** optimization is considered to be one of the most effective methods for improving zinc anodes due to its simplicity,low production cost and remarkable effectiveness in suppressing zinc dendrite *** this paper,a tetra(ethylene glycol)dimethyl ether(TEGDME)electrolyte additive was used to improve the stability of the zinc anode by adding 0.1 g/L TEGDME to the conventional ZnSO_(4) electrolyte to prepare a mixed *** effect of TEGDME on the side reactions of zinc anode was first assessed by linear sweep voltammetry(LSV)and potentiodynamic *** effect of TEGDME on the structure and morphology of zinc surfaces was observed using an X-ray diffractometer(XRD)and a scanning electron microscope(SEM).And finally,the electrochemical performance of Zn|Zn symmetric cells,Zn||Ti asymmetric cells and Zn-MnO_(2) full cells with ZnSO_(4)+TEGDME electrolyte was tested by cyclic voltammetry(CV)and galvanostatic *** results show that the addition of TEGDME improves the surface wettability of the Zn anode and reduces the growth of dendrites through solvation structure modulation to suppress HER and zinc ***,TEGDME keeps the Zn anode to maintain a flat surface during charging and discharging,improving the reversibility of plating/*** cycle life of the Zn||Ti asymmetric cell was improved and the Coulombic efficiency was 100%after 100 *** Zn||Zn symmetric cells can be cycled stably for 1800 h at a current density of 1 mA/cm^(2) and a fixed capacity of 1 mA·h/cm^(2),while the capacity retention of the Zn-MnO_(2) full cell can be effectively improved from 51.46%to 68.29%at 100 *** using TEGDME electrolyte additives,the

关键词： Aqueous zinc ion battery Zinc dendrite Hydrogen evolution reaction Solvation structure Cycle life

A secure visual framework for multi-index protection evaluation in networks

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Digital Communications and Networks 2023年第2期9卷 327-336页

作者： Xiang Wu huanhuan wang Yongting Zhang Ruirui Li Institute of Medical Information Security Xuzhou Medical UniversityXuzhou221000China Xuzhou Hengjia Electronic Technology Co.LTD Xuzhou221008China

Mining the core value of Industrial Internet of Things(IIoT)data safely and reducing the risk of malicious attacks are the inherent requirements of industrial data *** technology has become the main tool for data aggregation,mining and analysis of IIoT data through graphical ***,visualization technology still has two shortcomings in big data calculation and analysis *** the one hand,visual results will lead to the disclosure of sensitive *** the other hand,most visualization tools can't provide an interactive framework for users to select the suitable *** address these problems,we present an open accessible Visual framework based on Differential Privacy theory(VisDP),which provides Multi-index Quantitative comprehensive Evaluation technology(MQE)for data mining *** the advantages of interactive mechanism,VisDP provides rich optional schemes,including the operating web,calling API and the downloading ***,we verify the availability and privacy of MQE through mathematical proofs,analyze the hospital medical waste detection system that actually applies the framework,and the experimental results have showed the effectiveness and practicality of the proposed platform.

关键词： Visualization interactive platform Privacy preserving Differential privacy Data mining

Whole-tissue 3D imaging reveals intra-adipose sympathetic plasticity regulated by NGF-TrkA signal in cold-induced beiging

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Protein & Cell 2018年第6期9卷 527-539页

作者： Ying Cao huanhuan wang Wenwen Zeng Center for Life Sciences Tsinghua University Beijing 100084 China Institute for Immunology and School of Medicine Tsinghua University Beijing 100084 China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing 100084 China Academy for Advanced Interdisciplinary Studies Peking University Beijing 10()8:71 China School of Life Sciences Peking University Beijing 100871 China

Sympathetic arborizations act as the essential efferent signals in regulating the metabolism of peripheral organs including white adipose tissues （WAT）. However, whether these local neural structures would be of plastic nature, and how such plasticity might participate in specific metabolic events of WAT, remains largely uncharacterized. In this study, we exploit the new vol- ume fluorescence-imaging technique to observe the significant, and also reversible, plasticity of intra-adi- pose sympathetic arborizations in mouse inguinal WAT in response to cold challenge. We demonstrate that this sympathetic plasticity depends on the cold-elicited sig- nal of nerve growth factor （NGF） and TrkA receptor. Blockage of NGF or TrkA signaling suppresses intra- adipose sympathetic plasticity, and moreover, the cold- induced beiging process of WAT. Furthermore, we show that NGF expression in WAT depends on the cate- cholamine signal in cold challenge. We therefore reveal the key physiological relevance, together with the reg- ulatory mechanism, of intra-adipose sympathetic plas- ticity in the WAT metabolism.

关键词： sympathetic plasticity NGF TrkA receptor cold-induced beiging whole-tissue 3D imaging

Magnetocaloric properties of Nd-doped Gd5Si4 microparticles and nanopowders

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Chinese Physics B 2024年第11期33卷 396-402页

作者： Kaiyang Zhang huanhuan wang Ying wang Tao wang School of Physical Science and Technology Lanzhou UniversityLanzhou 730000China

The preparation of materials with enhanced magnetocaloric properties is crucial for magnetic refrigeration. In thisstudy, Nd-doped Gd5Si4 microparticles and nanomaterials were synthesized using the reduction–diffusion method. Theimpact of Nd doping with varying compositions on the structure and entropy change properties of the materials was *** Curie temperatures of both the micron- and nano-sized materials ranged from 190 K to 210 K, which were lowerthan previously reported values. Micron-sized samples doped with 1% Nd exhibited superior magnetocaloric properties,demonstrating a maximum entropy change of 4.98 J·kg^(-1)·K^(-1) at 5 T, with an entropy change exceeding 4 J·kg^(-1)·K^(-1)over a wide temperature range of approximately 70 K. Conversely, the nanomaterials had broader entropy change peaks butlower values. All samples exhibited a second-order phase transition, as confirmed by the Arrott plots.

关键词： magnetocaloric Gd5Si4 Nd doping reduction-diffusion method

Study on Al-Zn-In Alloy as Sacrificial Anodes in Seawater Environment

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Journal of Ocean University of China 2019年第4期18卷 889-895页

作者： wang huanhuan DU Min LIANG Hu GAO Qingyang The Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education College of Chemistry and Chemical Engineering Ocean University of China Qingdao 266100 China School of Materials Science and Engineering Xi’an Jiaotong University Xi’an 710049 China

Electrochemical properties including conventional electrochemical properties: open circuit potential, polarization poten- tial, electrochemical capacity, morphology of surface dissolution, and the initial polarization properties of Al-Zn-In-Mg-Ti and Al-Zn-In-Si sacrificial anodes are investigated in the sea. The curves of anode output current and work potential with time, the im- pact of area ratio of cathode to anode on anode output current is discussed, and the initial polarization properties are investigated with cyclic voltammetry (CV) finally. The results show that for the two anodes, the current efficiency got in the sea environment is higher than the data of the 4-day-accelerated test in laboratory and the corrosion morphology is more uniform in the sea. With the same exposed area, the current efficiency of Al-Zn-In-Mg-Ti anode is higher than that of Al-Zn-In-Si in the sea. For both anodes, the cur- rent efficiency becomes larger with the increase of the area ratio of cathode to anode. The two anodes can output larger current in strong polarization state. The situation is consistent with the results that small area anode released higher current in the sea trial. The difference rests with that Al-Zn-In-Mg-Ti anode output far greater current than that of the Al-Zn-In-Si under the same polarization potential. The initial polarization property of the Al-Zn-In-Mg-Ti anode is better than Al-Zn-In-Si anode.

关键词： initial polarization property trial sea experiment Al-Zn-In anode current efficiency

The MYB transcription factor RcMYB1 plays a central role in rose anthocyanin biosynthesis

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Horticulture Research 2023年第6期10卷 154-169页

作者： Guoren He Ren Zhang Shenghang Jiang huanhuan wang Feng Ming Shanghai Key Laboratory of Plant Molecular Sciences College of Life SciencesShanghai Normal UniversityShanghai200234China

Rose(Rosa hybrida)is one of most famous ornamental plants in the world,and its commodity value largely depends on its flower ***,the regulatory mechanism underlying rose flower color is still *** this study,we found that a key R2R3-MYB transcription factor,RcMYB1,plays a central role in rose anthocyanin *** of RcMYB1 significantly promoted anthocyanin accumulation in both white rose petals and tobacco *** 35S:RcMYB1 transgenic lines,a significant accumulation of anthocyanins occurred in leaves and *** further identified two MBW complexes(RcMYB1-RcBHLH42-RcTTG1;RcMYB1-RcEGL1-RcTTG1)associated with anthocyanin *** one-hybrid and luciferase assays showed that RcMYB1 could active its own gene promoter and those of other EBGs(early anthocyanin biosynthesis genes)and LBGs(late anthocyanin biosynthesis genes).In addition,both of the MBW complexes enhanced the transcriptional activity of RcMYB1 and ***,our results also indicate that RcMYB1 is involved in the metabolic regulation of carotenoids and volatile *** summary,we found that RcMYB1 widely participates in the transcriptional regulation of ABGs(anthocyanin biosynthesis genes),indicative of its central role in the regulation of anthocyanin accumulation in *** results provide a theoretical basis for the further improvement of the flower color trait in rose by breeding or genetic modification.

关键词： MYB1 breeding anthocyanin

Healing the defects in CsPbI_(3)solar cells by CsPbBr_(3)quantum dots

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Nano Research 2023年第4期16卷 4888-4894页

作者： Yanyan Li Linrui Duan Zhuang Zhang huanhuan wang Tianyang Chen Jingshan Luo Institute of Photoelectronic Thin Film Devices and Technology Solar Energy Research CenterKey Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinMinistry of Education Engineering Research Center of Thin Film Photoelectronic TechnologyRenewable Energy Conversion and Storage CenterNankai UniversityTianjin 300350China

Cesium lead iodide(CsPbI_(3))is a promising photo-absorber for perovskite photovoltaics due to its high thermal stability and relatively small ***,there are many defects in solution processed polycrystalline CsPbI_(3)films especially at the grain boundaries(GBs),which limit the power conversion efficiency(PCE)of CsPbI_(3)solar *** this work,we introduced CsPbBr_(3)quantum dots(QDs)on top of the CsPbI_(3)film to passivate the *** CsPbBr_(3)QDs have a small size and a similar crystal structure as the CsPbI_(3),they are excellent modifiers to fill in the GBs and heal the ***,we find there is an anion exchange reaction between the CsPbBr_(3)QDs and CsPbI_(3)films,which is evidenced by photoluminescence spectra and grazing incidence X-ray diffraction *** QDs treated films show enhanced carrier lifetime and reduced defect ***,the ligands on CsPbBr_(3)QDs increase the hydrophobicity of the *** a result,the QDs treated CsPbI_(3)solar cells prepared at high temperature obtain PCEs exceeding 16%with high stability.

关键词： CsPbI_(3)solar cell CsPbBr_(3)quantum dots defect passivation

Revealing the scientific connotation of compatibility of Chinese medicine medica based on self-assembly technology

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Journal of Traditional Chinese Medicine 2024年第6期44卷 1288-1295页

作者： DONG Yingying GUO Qin GAO Yuan wang huanhuan BAI Dong Institute of Basic Theory of Chinese Medicine China Academy of Chinese Medical SciencesBeijing 100700China Basic Medical School Shaanxi University of Chinese MedicineXianyang 712046China

Chinese materia medica(CMM) compatibility is one core content in the theory of Traditional Chinese Medicine(TCM), and elaborating the scientific connotation of CMM compatibility is of great significance to promote the modernization of TCM. Self-assembly is the combination of active ingredients into aggregates through noncovalent bonds, such as hydrogen bonding, electrostatic interactions, ionic interactions, and hydrophobic interactions. The complex properties and special structures of CMM components create the basis for selfassembly. The self-assembled materials formed after CMM compatibility is an important part of the material basis for the efficacy of TCM, which can help explain the scientific connotations of CMM compatibility. This review summarizes the self-assembly phenomenon from the perspective of drug pair combinations in recent decades and explains the scientific connotation of CMM compatibility about the material basis, pharmacodynamic changes, and mechanism of action, providing new ideas and methods for the study of TCM.

关键词： Chinese materia medica compatibility medicine Chinese Traditional self-assembly phenomenon reduce adverse reactions and increase desired effects component interactions review

Drug adulteration analysis based on complexation with cyclodextrin and metal ions using ion mobility spectrometry

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Journal of Pharmaceutical Analysis 2023年第3期13卷 287-295页

作者： Zhigang Liang huanhuan wang Fangling Wu Longfei wang Chenwei Li Chuan-Fan Ding Department of Thoracic Surgery Ningbo First HospitalNingbo UniversityNingboZhejiang315010China Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province Institute of Mass SpectrometrySchool of Material Science and Chemical EngineeringNingbo UniversityNingboZhejiang315211China

Drug adulteration and contamination are serious threats to human health therefore,their accurate monitoring is very ***(Alp)and theophylline(Thp)are commonly used drugs for the treatment of gout and bronchitis,while their isomers hypoxanthine(Hyt)and theobromine(Thm)have no effect and affect the efficacy of the *** this work,the drug isomers of Alp/Hyt and Thp/Thm are simply mixed withα-,β-,γ-cyclodextrin(CD)and metal ions and separated using trapped ion mobility spectrometry-mass spectrometry(TIMS-MS).TIMS-MS results showed that Alp/Hyt and Thp/Thm isomers could interact with CD and metal ions and form corresponding binary or ternary complexes to achieve their TIMS *** metal ions and CDs showed different separation effect for the isomers,among which Alp and Hyt could be successfully distinguished from the complexes of[Alp/Hyt+γ-CD+Cu–H]^(+)with separation resolution(RP–P)of 1.51;whereas Thp and Thm could be baseline separated by[Thp/Thm+γ-CD+Ca–H]^(+)with RP–P of ***,chemical calculations revealed that the complexes were in the inclusion forms,and microscopic interactions were somewhat different,making their mobility ***,relative and absolute quantification was investigated with an internal standard to determine the precise isomers content,and good linearity(R^(2)>0.99)was ***,the method was applied for the adulteration detection where different drugs and urine were *** addition,due to the advantages of fast speed,simple operation,high sensitivity,and no chromatographic separation required,the proposed method provides an effective strategy for the drug adulteration detection of isomers.

关键词： Drug isomer Adulteration Separation Ion mobility Chemical calculations